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"flat spin" Definitions
  1. a movement of an aircraft in which it goes gradually downwards while flying around in almost horizontal circles
"flat spin" Synonyms

72 Sentences With "flat spin"

How to use flat spin in a sentence? Find typical usage patterns (collocations)/phrases/context for "flat spin" and check conjugation/comparative form for "flat spin". Mastering all the usages of "flat spin" from sentence examples published by news publications.

The plane crashed in a flat spin in the Maryland woods.
But looking at Supernatural at age 11, everyone who stuck it through the occasional awkwardly bad episode, continuity error, or flat spin-off attempt, should feel good about their investment.
"Theresa May's greatest trick appears to have been to deliver what amounts to a fairly hard Brexit message without the markets going into a flat spin," said ETX Capital analyst Neil Wilson.
With her Viper in a flat spin, Starbuck is forced to eject and falls towards the moon.
When entering an inverted flat spin, you must apply opposite aileron to which the rudder is going. Once the spin is initiated, you do the same as a standard Flat Spin. Waterfall The waterfall is a move where the plane is made to pivot 360 degrees in the pitch axes. Ideally this is performed with little altitude gain or forward motion.
Blender Form of entering an inverted flat spin from a nose down attitude. The pilot applies full aileron, then rudder in the opposite direction and full down elevator. The plane will "snap" and then the pilot must neutralize aileron (and in some cases apply aileron in the same direction as the rudder) and the plane will be in an inverted flat spin. Pop- Top Same as a blender, but going up.
On 1 October 1949 the prototype entered a flat-spin during test flying from Mariganne, it crashed killing the six crew near Carcès. The project was canceled and the three aircraft being built were not completed.
The previous world record for the number of consecutive turns in a flat spin was 81 also set by Spencer Suderman on March 13, 2014 in a Pitts S2-B from 23,000 ft altitude over the Naval Air Facility El Centro.
Debris was spread in a radius from the crash site and firefighters attending the crash site used of foam to extinguish the post-crash fire. Witnesses reported seeing the aircraft on fire with a smoking engine and descending in a "flat spin".
Other maneuvers that are considered impossible to perform under control using only aerodynamic maneuvering include the Bell (a 360° loop with negligible altitude change) and the controlled flat spin (360° of yaw around a point of rotation that lies inside the aircraft).
The stabilizer separated from the aircraft and fell into Jamaica Bay, about one mile north of the main wreckage site. The aircraft pitched downwards after the stabilizer loss. As the pilots struggled to control the aircraft, it went into a flat spin.
47 The aircraft then entered a flat spin, with the forward fuselage section and the outer starboard wing breaking off shortly before impact with the ground.Job, Macaurthur. Air Disaster – Volume 1, p.48–49 An 8 mm film exposed by one of the passengers was recovered from the wreckage.
Recovery from the resulting flat spin was difficult, though some pilots took advantage of this trait to descend quickly or evade enemy aircraft.VanWyngarden 2006, pp. 45–46. The Pfalz's primary advantage was its strength and sturdiness. The Albatros scouts were plagued by failure of their single-spar lower wings.
The heat buildup caused the engine to stall. Without power to maintain cockpit pressurization, the faceplate on Sieker's helmet popped open and he lost consciousness. Uncontrolled, the U-2 went into a flat spin. Sieker recovered and bailed out, but at too low an altitude and he was killed.
Climbing to over Chesapeake Bay, Carl commenced the spin. The aircraft entered a flat spin with strong centrifugal forces. Carl could not break the spin and rode it down to . He tried to operate the ejection seat, but the face blind ripped away in his hands and the seat failed to fire.
The Kraken stands tall. With a top speed of , the ride was the fastest roller coaster at SeaWorld Orlando until the opening of Mako in summer 2016. The ride features seven inversions including two vertical loops, a dive loop, a spiraling camelback (zero-g roll), a cobra roll and a flat spin (corkscrew).
During certification testing of the cabin version of the Akromaster, aerobatic pilot Harold Krier was unable to recover from a flat spin and died due to a parachute malfunction. Charlie Hillard flew the Akromaster prior to forming the Red Devils aerobatic team. Hillard placed third in the 1970 world aerobatic championships with the aircraft.
Both Nemesis Inferno at Thorpe Park and Bizarro at Six Flags Great Adventure feature interlocking corkscrews. Bolliger & Mabillard introduced a variation of the corkscrew that the company calls a flat spin. Flat spins snap riders quickly through the inversion at varying speeds, as opposed to a standard corkscrew that rotates riders at slower, constant speeds.
The baton can be caught blind behind the head, at the side, under a kick, under one or both legs or in an illusion. Other tosses include the open hand toss and flat spin toss. The sport of baton twirling has many tricks common to all twirlers. The elbow roll is a common trick.
The 1-11 violently accelerated upward and in a left roll. At this time the right tailplane and the vertical stabilizer failed. The aircraft then pitched nose down and within one or two seconds the right wing failed as well. The plane tumbled down in flames until entering a flat spin before impacting the ground.
The aircraft was almost ready to attend the competitive tests at RAF Martlesham Heath when W.T. Campbell entered a spin with the undercarriage unintentionally down. An irrecoverable flat spin developed and Campbell had to abandon the aircraft. This ended Bristol's interest in the specification F.7/30 competition, which was won by the Gloster Gladiator.
The Gladiator very easily entered a flat spin, and great skill was needed to recover.Håkan & Slongo 2012. During 1938, the RAF had begun to receive its first deliveries of the Hurricane and Spitfire monoplanes; an emphasis was soon placed on quickly re-equipping half of the Gladiator squadrons with either of these monoplane types.Mason 1966, p. 6.
The results were disappointing, with the bomb falling in a flat spin. This indicated that a thorough test program was required. Further testing of Silverplate B-29 aircraft and Thin Man and Fat Man bomb shapes was carried out at Muroc Army Air Field in March and June 1944. Testing shifted to Wendover Army Air Field, Utah, in October.
Operation High Dive (also known as Project High Dive) was a secret project carried out during the 1950s by the United States Air Force. It tested high- altitude parachutes using anthropomorphic dummies. The dummies went into a 200 rpm flat spin, which would be fatal to a human. Further investigations on this led to Project Excelsior.
After the armour was fitted, the aircraft could become difficult to balance, and during aerobatic manoeuvres could enter an extremely difficult to control flat spin, forcing the pilot to bail out. On 22 July 1941, Leonardo Ferrulli, one of the top-scoring Regia Aeronautica pilots, encountered the problem and was forced to bail out over Sicily.Duma 2007, p. 201.
However all was not lost. The plane was in such a flat spin when it reached the ground that it skidded sideways over the surface of a field until the tail section hit a haystack and broke off. The four "boffins" walked away relatively unharmed, the knotted rope being their only positive remedy for an Oxford in a spin.
Inverted Harrier The same as the above, just inverted. Most capable pilots find this easier than a standard harrier due to the wing being above the center of gravity rather than below it. Harrier Roll Like the Harrier manoeuvre but with a roll performed simultaneously. Flat spin A spin induced with full up elevator, full rudder, and full aileron.
The engine cut out, the nose reared-up and the aircraft stalled and entered a flat spin. When de Havilland's recovery efforts failed, both decided to parachute out. Once they had done so the lightened Moth lowered its nose and recovered from the spin. The engine ignition had been left on and the wind-milling propeller started the engine.
It was at an altitude of . The nose was seen to pitch up by 30 to 40° before the aircraft turned to port, followed by the starboard wing dropping. Although full power was applied, the aircraft entered into a flat spin, and crashed at Felthorpe, killing all on board. It was not fitted with an anti-spin parachute.
Once the spin is initiated you will level the ailerons and increase engine speed a bit to pull the aircraft around. This will in turn flatten the spin. Inverted Flat spin The same as the above but inverted. Inverted flat spins are easier to control, but can be hard to come out of due to orientation, and knowing when to stop the spin.
The aircraft was tested for low speed handling on 5 July. Whilst at , and unable to recover from a flat spin 20 minutes after take-off, the aircraft spun in from two miles south-southeast of Boscombe Down. It was destroyed by fire and the pilot Lieutenant Commander T.A. Rickell, who had ejected just before the crash, died of injuries sustained.Sturtivant, p.
On a ride during the winter of 1931 her plane was in a flat spin and would have crashed. She climbed out of the cockpit preparing to parachute but her weight on the wing tilted the aircraft enough to take her out of the spin. She climbed back into the cockpit and regained control at 200 feet. This got her a job at Viking as a spokeswoman.
Supermarine 525 prototype (VX138) landing aboard the Royal Navy aircraft carrier , 14 June 1955. The aircraft crashed just three weeks later after the pilot was unable to recover from a flat spin. The aircraft made further test flights during late 1954 from its base at Chilbolton airfield, Hampshire. In early 1955 it was taken by road to the Hursley Park factory for the installation of a flap blowing system.
At approximately 5:15 p.m., at an altitude of approximately , Flight 28 was struck by the B-34. The DC-3 lost its rudder to the propeller from the B-34's right engine, along with portions of its tail. It fell from the sky in a flat spin and impacted a rocky ledge in Chino Canyon, below San Jacinto Peak, before crashing into the desert and exploding.
The Trident entered a deep stall after a critical angle of attack was reached. Eventually, it entered a flat spin, and appeared to be about to crash, but a wing dropped during the stall, and when corrected with rudder the other wing dropped. The aircraft continued rolling left and right until the nose pitched down and the crew were able to recover to normal flight.Bartelski 2001, p. 192.
Hockaday had previously assisted engineer Douglas Webber at American Eagle Aircraft Corporation, both of whom later moved to Rearwin Aircraft. Their influence at Rearwin resulted in design elements that were used in the Sportster, thus resembling the Hockaday-designed Flyabout. In 1936, the Sportster was certified to take pontoons at the request of George B. Cluett. This required enlarging the vertical tail after the test aircraft nearly failed to recover from a flat spin.
Since Johnsville possessed the world's largest human centrifuge, capable of spinning a man to at least 16g, (42g max 19g/s onset) it was used for astronaut training. The centrifuge was later used for flight simulation where it could simulate 6 degrees of freedom with g loading. The F-14 flat spin on takeoff issue was investigated and resolved on the DFS centrifuge. Later endeavors included supine seat experiments, G-Tolerance Improvement Program (GTIP), and F/A-18 simulation.
Patridge 1967, p. 10. On 21 October 1954, a pilot attached to Gloster from RAE Farnborough was killed while flying Javelin XA546 having entered what appeared to be an intentional spin. On 8 December 1955, a service test pilot S/L Dick"Obituary of Alan David Dick." 207 Squadron RAF Association was testing XA561 for the A&AEE; when the aircraft entered a flat spin during manoeuvres, which the anti-spin parachute could not stop, and he ejected.
The aircraft was operating the first leg of the flight, and cruising at with an airspeed of , close to stalling speed for that altitude. The low speed caused vibrations, which the aircrew incorrectly assumed were engine surges. Using the thrust levers to reduce engine power to flight idle, the crew caused a further drop in airspeed to . The aircraft stalled and entered a flat spin, crashing into the ground near Uchkuduk, Uzbekistan, at that time in the Soviet Union.
The same aircraft was renamed the Type 171 Jockey when the Mercury was replaced by a supercharged Bristol Jupiter VIIF. The intention to power the Jockey with a supercharged Mercury IVS2 was never realised, after the sole Jockey was lost in a flat spin on 5 July 1932, crashing at Woodbridge, Suffolk, the pilot bailing out at . The results of the tests had been sufficiently good to encourage Vickers to refine its design into the Vickers Venom.
However, if the tendency is to pitch up (tail-heavy) when it stalls, the aircraft will likely transition into a "flat-spin" where stall recovery would be delayed, or it may not be recoverable at all. One method recommended before practicing spins, is to determine the aircraft's stall tendency by doing a "pitch test." To do this, slowly reduce power to idle and see which way the nose pitches. If it pitches down, then the aircraft is stall recoverable.
A falling leaf is a controlled stall performed in a fixed-wing aircraft. The maneuver is performed by purposely stalling the airplane and then carefully using the rudder to try to hold the aircraft on a steady course. The falling leaf consists of a constant rotation about the yaw axis while continually changing the direction. This is opposed to a flat spin, where the aircraft constantly rotates around its yaw axis in only one direction, similar to a Frisbee.
Excelsior I: Kittinger's first high-altitude jump, from about on November 16, 1959, was a near-disaster when an equipment malfunction caused him to lose consciousness. The automatic parachute opener in his equipment saved his life. He went into a flat spin at a rotational velocity of about 120 rpm, the g-forces at his extremities having been calculated to be over 22 times the force of gravity, setting another record. Excelsior II: On December 11, 1959, Kittinger jumped again from about .
The rights to the Pitts name is currently owned by Aviat which also owns the similar model to the Pitts in the Christen Eagle. The current inverted flat spin world record is 98 set on March 20, 2016 by air show performer Spencer Suderman over Yuma, Arizona. Suderman flew the Sunbird S-1x, a Lycoming IO-540-powered experimental variant of the Pitts S1. The maneuver began from 24,500' over the Yuma Proving Grounds and was recovered at 2,000' AGL.
The aircraft was hit by a surface-to-air missile which blew off the right wing, and the two crewmembers ejected from the aircraft after it went into a flat spin. Their wingman tracked the parachutes as the crew descended, but lost sight of them because of poor visibility and flak after the crew were within 50 feet of the ground. Ejection was at about 2,000 feet altitude and 18 miles inland in flat terrain. Coker and Fellowes landed about one mile apart.
The first prototype 1MF10, with the Navy designation Experimental 7-shi Carrier Fighter made its maiden flight in March 1933. It was destroyed in July 1933 when its tail broke up during diving tests, although the pilot escaped by parachute. The second prototype had a revised undercarriage, with the main wheels and undercarriage legs faired into streamlined spats. It was also destroyed in a crash, when it could not be recovered from a flat spin in June 1934 by pilot Motoharu Okamura.
The test sequence involved a series of stalls starting at . The aircraft entered an unintentional flat spin and was not under control at , at which point the test pilot bailed out of the aircraft. Cessna confirmed that the 162 entered a spin from cross-controlled, power-on stall, that the spin became flat and recovery was not possible. The company indicated that the testing was outside that required for LSA certification and that the accident will result in only small design changes.
The train then makes a full 360-degree upward right turn followed by a left turn leading into another drop. After the drop, the train makes highly banked right turn into a flat spin. Next, the train makes a left turn (extremely close to the ground) before heading to an airtime, and back up which leads into the brake run. After exiting the brake run, the train makes a right turn into a second, shorter, set of brakes before entering the station.
On 2 February 1970, an F-106 of the 71st Fighter-Interceptor Squadron, piloted by Captain Gary Foust, entered a flat spin over Montana. Foust followed procedures and ejected from the aircraft. The resulting change of balance caused the aircraft to stabilize and later land "wheels up" in a snow-covered field, suffering only minor damage. The aircraft, promptly nicknamed "The Cornfield Bomber", was then sent back to base by rail, repaired and returned to service, and is now on display at the National Museum of the United States Air Force.
The results were disappointing – the bomb fell in a flat spin – but the need for a thorough test program was demonstrated. Groves met with Arnold again in September 1943. He informed Arnold that there was now a second bomb shape under consideration, the Fat Man, and formally requested that further tests be carried out, that not more than three B-29s be modified to carry the weapons, and that the USAAF form and train a special unit to deliver the bombs. Arnold delegated responsibility for this to Major General Oliver P. Echols.
The underside of 58-0787, showing the damage it received during its belly landing The individual aircraft was manufactured by Convair in 1958 and received the tail number 58-0787. It served with 71st Fighter-Interceptor Squadron based at Malmstrom Air Force Base adjacent to Great Falls, Montana. During a routine training flight conducting aerial combat maneuvers on February 2, 1970, the aircraft entered a flat spin. The pilot, Captain Gary Faust, attempted to recover, deploying the aircraft's drag chute as a last resort; recovery proved to be impossible.
Yaw strings are also fitted to the Lockheed U-2 high-altitude surveillance aircraft. A flat spin, caused by excessive sideslip even in level flight, happens much more easily at high altitudes. Some light twin-engine airplane pilots place yaw strings on their aircraft to help maintain control in the event of an engine failure, because the slip-skid indicator ball is not accurate in this case. In a multiengine airplane with an inoperative engine, the centered ball is no longer the indicator of zero sideslip due to asymmetrical thrust.
In June the engine was changed to a 635 hp (474 kW) Bristol Pegasus IIM, another radial enclosed, like the previous powerplant, in a narrow chord Townend ring. At about the same time it lost its spats and arrestor hook. The sole aircraft was lost after a flat spin in September 1934. Despite its loss, the performance was good enough to call for the production of another aircraft to the specification S.15/33, an amalgamation of the earlier specifications S.9/30 and M.1/30 for a torpedo bomber.
Two prototypes were built, with the first making its maiden flight on 6 February 1982. This aircraft crashed in August 1982 while testing the aircraft's spinning characteristics, when it could not be recovered from a flat spin, the test pilot escaping by parachute. Although testing continued with the second prototype, the type was abandoned without entering production with Grob designing a new two seat trainer, the Grob G 112. This too was a failure, as it was overweight, but the companies third attempt to enter the trainer market, the Grob G 115, flew in 1985.
In order to change the empty drum on the Lewis, Strange had to stand up in the cockpit. Immediately the machine flipped on its back, throwing Strange from the cockpit and developing a flat spin downwards. Strange, hanging onto the ammunition drum of the Lewis gun, managed to swing back into the cockpit and kick the stick over to right the aircraft only 500 feet above the ground. Strange later related: :I kept on kicking upwards behind me until at last I got one foot and then the other hooked inside the cockpit.
After the loop, the train turns right into its only camelback hill, where riders experience a feeling of weightlessness on the hill. Next, the train goes through a giant flat spin, followed by a Spiraling Camelback (zero-g roll) which features two keyhole points as it passes through two -tall towers. The train then returns to the ground and goes through an inclined dive loop, which is the turn-around point of the roller coaster. Next, the train rotates 360 degrees in an inline twist, which passes the two towers.
In 2014, a vintage World War II-era aircraft lost control in a late spring snow squall on June 17 and crashed into the ski area's main parking lot. The Grumman G-21A Goose caught fire and was completely destroyed; its only occupant, the pilot, was killed. The day lodge had hosted a conference that Tuesday which concluded shortly before the late afternoon incident. The last attendee to depart was in his car and was nearly struck by the plane, which impacted about away after a near-vertical flat spin descent.
The first mass production deliveries were made in 1922 to the French Air Force and the type was popular although it did have a tendency to enter a flat spin. The French military bought 250 aircraft which were built by Nieuport and seven other companies. The Ni-D 29 was to become an important fighter in the 1920s with purchases of 30 by Spain (including 10 Spanish licence built aircraft), 108 by Belgium (87 licensed built by SABCA). The Italian Regia Aeronautica bought 175 aircraft including 95 built by Macchi as the Macchi-Nieuport 29 and 80 built by Caproni.
As jet planes flew higher and faster in the 1950s, the Air Force became increasingly worried about the safety of flight crews who had to eject at high altitude. Tests in Operation High Dive with dummies had shown that a body in free-fall at high altitude would often go into a flat spin at a rate of up to 200 revolutions per minute (about 3.3 revolutions per second). This would be potentially fatal. Project Excelsior was initiated in 1958 to design a parachute system that would allow a safe, controlled descent after a high-altitude ejection.
Initially ignored by Bell engineers, Kochetkov's expert testing of the machine's spin characteristics (which led to airframe buckling) eventually led to a significant Soviet role in the development. After flat spin recovery proved impossible, and upon Kochetkov's making a final recommendation that pilots should bail out upon entering such a spin, he received a commendation from the Irving Parachute Company. The Kingcobra's maximum aft CG was moved forward to facilitate recovery from spins.Gordon 2008, pp. 450–451. P-63A-8, SN 269261, was extensively tested at TsAGI in what was then the world's largest wind tunnel.
The Viscounts indicated air speed was 235 knots while the T-33's was 290 knots with a closing rate of approximately 195 knots. While slowly climbing through 8,000 feet at 85 percent engine power the jet banked slightly to the right and impacted the left side of the airliner forward of the wing. The airliner pitched up, its air speed decreasing, then the nose dropped and the aircraft entered a steep spin to the right, slowing to a flat spin before it struck the ground. The T-33 pilot was thrown clear of the flaming jet and parachuted safely to the ground but was badly burned.
Allen had seven confirmed kills and was awarded the Distinguished Flying Cross.Obituary, Times, 1987 His nickname, "Dizzy", reflected his ability to escape a tight situation by executing an aerobatic flat-spin. He was shot down and wounded on a number of occasions, once by the well-known Luftwaffe ace Werner Molders and again as a result of an air-to-air collision with another RAF pilot. In 1978, Allen recorded his experiences as a combat pilot for a BBC programme in which he expressed high praise for his fellow pilots and ground staff but was critical of the radar controllers and the higher echelons of the RAF.
The performance of the TF30 engine became an object of criticism. John Lehman, Secretary of the Navy in the 1980s, told the U.S. Congress that the TF30/F-14 combination was "probably the worst engine/airframe mismatch we have had in years" and that the TF30 was "a terrible engine"; 28% of all F-14 accidents were attributed to the engine. A high frequency of turbine blade failures led to the reinforcement of the entire engine bay to limit damage from such failures. The engines also had proved to be extremely prone to compressor stalls, which could easily result in loss of control, severe yaw oscillations, and could lead to an unrecoverable flat spin.
Flight tests of the full sized MC-1, (registered to the Albert Criz company on 19 July 1943 as NX21757), commenced at March Field, California on 11 September 1943, but tragedy struck on a demonstration flight with Richard Chichester du Pont, special assistant to Gen Arnold; Col Ernest Gabel, another glider specialist on the staff of the Chief of Staff of the Air Force, and C. C. Chandler, thrice soaring champion aboard. Inadequately secured ballast came loose when the glider flew through the Lockheed C-60 glider tug's propwash, causing a catastrophic rearward shift in the centre of gravity. The uncontrollable MC-1A released from tow and entered a flat spin which it didn't recover from.
Bär did not return to his home in Sommerfeld after World War II. He settled in Braunschweig, where he continued his career in aviation, including a lead position for motor-powered flight with the Deutscher Aero Club. He also worked as a consultant and test pilot in the field of sport aviation, testing aircraft before they went on the market. On 28 April 1957, while conducting a routine flight-check in a light aircraft, a LF-1 Zaunkönig, Bär put the aircraft into a flat spin, the final manoeuvre in the test process. The aircraft spun down to then, unable to regain control, Bär was killed in the resulting crash at Braunschweig-Waggum.
For his next run, Where Or When was dropped back in class to contest the Listed Thoroughbred Stakes over one mile at Goodwood on 3 August in which he was ridden by Mick Kinane and started the 13/8 second favourite. After racing in third place he took the lead inside the final furlong and accelerated away to win by two and a half lengths from Flat Spin. Three week afters win in the Thoroughbred Stakes Where Or When ran in the Celebration Mile over the same course and distance. Ridden by Kevin Darley, who partnered him in all of his subsequent races, the colt was repeatedly blocked when attempting to obtain a clear run before finishing strongly and dead-heating for fourth place behind Tillerman, beaten half a length by the winner.
Pilots commented early on about the difficulty of climbing into the cockpit, a trait that persisted through the I-16's service life. Before continuing test flights the designers had to answer the question of spin behavior. Wind tunnel testing suggested that the TsKB-12, with its short tail, would enter an unrecoverable flat spin, but real-life trials were necessary to confirm this. Since Cyclone engines were rare, it was decided to risk the M-22 prototype for this purpose. On 1 and 2 March 1934, Chkalov performed 75 spins and discovered that the aircraft had very benign stall behavior (dipping a wing and recovering without input from the pilot when airspeed increased) and intentional spins could be easily terminated by placing the controls in the neutral position.
Navigator Maj. E. B. Underwood, Jr. ejects before the crash and is hospitalized in stable condition. After serving in the lifting body program as chase pilot on various Northrop M2 and X-24A flights, Love made his first X-24B flight on 4 October 1973, and piloted the plane to its fastest speed—better than 1,860 km/h—before terminating the program with a hard-surface runway landing at Edwards on 20 August 1975.Washington Star, 2 March 1976, page A-5.The Washington Post, 3 March 1976, page A-20. ;5 March: F-14a bureau number 159826 crashed at NAS Patuxent River after entering the first F-14 flat spin while conducting aileron/rudder interconnect tests. Strike Aircraft Directorate Chief Test Pilot CDR D.D. Smith and RIO LCDR Pete Angelina ejected successfully.
They are not. The "snap roll" is yet another maneuver, commonly seen in aerobatics performances, and is similar to a flat spin (thus involving an aerodynamic stall) and is not typically of any use in ACM) around each other's flight path, which might look like two interwoven cork-screws, or a double helix. The more barrel rolls that are flown in the rolling scissors, the more nearly the rolls become horizontal only, as each pilot attempts to deplete enough forward speed to place his fighter behind the other. By imagining the difference between the initial conditions of the flat and rolling scissors, one can see how that the addition of the vertical component of the initial overshoot turns the rolling scissor engagement into a three- dimensional rolling encounter.
377a was based in Sicily, and fought in Malta and Pantelleria, mainly in an escort role and protecting Axis ships almost until Tunisia (with a range up to 300–350 km), well beyond the other RA single seat-fighters; sometimes it was used to attack Malta with bomblets (spezzoni) and machine guns, typically at dawn. It reported a single 'kill' against a Bristol Blenheim. Overall, their service was not remarkable: there was at least one sudden fatal flat spin, while another Re.2000 had fatal engine damage (a piston was literally driven through the cylinder) and crash- landed, overturning, catching fire and almost killing its pilot (rescued by the ground crew). Although the Reggiane had a long range, it was disliked and even feared by ground crew and pilots, for its difficult maintenance and unpredictable engine reliability and handling.
On 22 September he was again leading a patrol of three aircraft over Armentières when they were attacked by about fourteen enemy aircraft, this time Barkell shot at another Fokker D.VII, which went down in a flat spin. He was then attacked by two more D.VIIs from behind, but made a tight turn and was able to fire at one from a very close range, causing it to turn over and dive steeply away. Unfortunately his aircraft had also been hit in the engine and he had to make a forced landing at Neuve Église. On 29 September No. 4 Squadron moved to Serny, and on 3 October received its first six Sopwith Snipes, eventually replacing all their Camels by the 19th. Sopwith Snipe of No. 4 Squadron AFC On 5 October 1918 a recommendation for the award of the Distinguished Flying Cross was submitted by Brigadier General Edgar Ludlow-Hewitt, General Officer Commanding, 10th Brigade, Royal Air Force.
For Project Excelsior (meaning "ever upward", a name given to the project by Colonel John Stapp), as part of research into high altitude bailout, he made a series of three parachute jumps wearing a pressurized suit, from a helium balloon with an open gondola. The first, from 76,400 feet (23,290 m) in November 1959 was a near tragedy when an equipment malfunction caused him to lose consciousness, but the automatic parachute saved him (he went into a flat spin at a rotational velocity of 120 rpm; the g-force at his extremities was calculated to be over 22 times that of gravity, setting another record). Three weeks later he jumped again from 74,700 feet (22,770 m). For that return jump Kittinger was awarded the A. Leo Stevens parachute medal. On 16 August 1960 he made the final jump from the Excelsior III at 102,800 feet (31,330 m). Towing a small drogue chute for stabilization, he fell for 4 minutes and 36 seconds reaching a maximum speed of 614 mph (988 km/h) before opening his parachute at 14,000 feet (4,270 m).

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