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Topic: Ejection seat

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	F16 Ejection seat - ACES II
		The ACES II (Advanced Concept Ejection Seat) is considered a smart seat since it senses the conditions of the ejection and selects the proper deployment of the drogue and main parachutes to minimize the forces on the occupant.
		The seat is a derivative of the Douglas Escapac seat.
		To prevent the seat from tumbling when the aircraft is in a roll maneuver or there is a center of gravity imbalance, another (smaller) rocket called a STAPAC is attached to a gyroscope.
	www.avitop.com /interact/ejection.htm (306 words)

	Oregon Aero - "Ejection Seat Cushioning Systems" (page 1).
		The 3-D image is used to make an exact plastic or metal seat model we work with to manufacture the seat cushion system.
		Oregon Aero’s Ejection Seat Cushion Systems solve a lot of problems and let pilots focus on the job at hand without the distraction of seat pain.
		When pilots tested the same seat during a mission, however, they complained of pressure on the lower back.
	www.oregonaero.com /p4243_2001.html (906 words)

	Early Swedish ejection seats (Site not responding. Last check: )
		The system that was developed was a compressed air ejection seat which was patented and trialled on the ground by Saab during 1941.
		After ejection the seat straps (by this time the only straps were across the waist) were disconnected automatically, but the parachute had to be opened manually.
		The first emergency ejection I know about was when the test pilot Schenk ejected from the prototype Heinkel He 280 V1 on 13 Jan 1943 and the first production aircraft with ejection seat was Heinkel He 219.
	www.canit.se /~griffon/aviation/text/saabejec.htm (518 words)

	Gemini Ejection
		The ejection seat was to provide the crew a means of escaping from the Gemini spacecraft in an emergency while the launch vehicle was still on the launch pad, during the initial phase of powered flight (to about 60,000 feet), or in case of paraglider failure after reentry.
		In addition to the seat, the escape system included a hatch actuation system to open the hatches before ejection, a rocket catapult to propel the seat from the spacecraft, a personnel parachute system to sustain the astronaut after his separation from the seat, and survival equipment for the astronaut's use after landing.
		The purpose of these simulated off-the-pad ejection tests was to investigate the effects of varying the center of gravity on the trajectory of the ejected seat and to optimize the timing of the recovery sequence.
	www.astronautix.com /craft/gemction.htm (3023 words)

	Howstuffworks "How Ejection Seats Work"
		It's important for many types of aircraft to have an ejection seat in case the plane is damaged in battle or during testing and the pilot has to bail out to save his or her life.
		The purpose of the ejection seat is simple: To lift the pilot straight out of the aircraft to a safe distance, then deploy a parachute to allow the pilot to land safely on the ground.
		Ejection seats are placed into the cockpit and usually attach to rails via a set of rollers on the edges of the seat.
	science.howstuffworks.com /ejection-seat.htm/printable (2371 words)

	Sweden
		Originally the seat was designed to use a 2 litre compressed air bottle as the propellant being fed via a valve to the lower end of the tubes but this proved unsatisfactory and performance was poor.
		On ejection the pilot's waist straps were automatically released as the seat passed the rim of the cockpit leaving the pilot to operate his own rip-cord.
		The soft seat pack was replaced by a hard seat case which lessoned the acceleration on the pilot during the initial stages of ejection.
	www.ejection-history.org.uk /PROJECT/Sweden/Sweden.htm (5023 words)

	Ejection seat
		The ACES II (Advanced Concept Ejection Seat) is considered a smart seat since it senses the conditions of the ejection and selects the proper deployment of the drogue and main parachutes to minimize the forces on the occupant.
		The seat is a derivative of the Douglas Escapac seat.
		To prevent the seat from tumbling when the aircraft is in a roll maneuver or there is a center of gravity imbalance, another (smaller) rocket called a STAPAC is attached to a gyroscope.
	www.jets.dk /interact/nfejection.asp (297 words)

	HAL aircraft ejection seat fires accidentally on the ground - Deccan Herald (Site not responding. Last check: )
		Against all safety norms the ejection exercise was conducted inside the prototype hangar of HAL Bangalore Complex while the aircraft was on the ground during 28 January.
		Ejection seats are fitted with a rocket or pyro-cartridge, which fires the seat upwards and away from the aircraft, with a parachute that opens automatically for the pilot to make a safe landing.
		During an actual ejection, to prevent a pilot from injury, it is necessary to ensure that aircraft parts are not an obstruction in the ejection trajectory.
	www.deccanherald.com /deccanherald/feb082004/s7.asp (527 words)

	Ejection Seats
		At 0.65 seconds after the seat leaves the floor of the aircraft, the seat separator system is activated and that releases the lap belt and forces the occupant away from the seat with the parachute.
		This phase of the ejection sequence is critical to the outcome of the entire process of escape and yet 90 per cent of all non-fatal injuries associated with escape occur during landing.
		During ejection, telescoping booms are deployed from the seat to stabilize the attitude of the seat from the time it leaves the aircraft until the seat and its occupant decelerate to the speed where the recovery parachute is deployed and the occupant is separated from the seat.
	www.fas.org /man/dod-101/sys/ac/equip/eject.htm (3891 words)

	Seat history
		A back-up, or secondary, seat actuating device was situated between the pilot’s knees, where it was conveniently at hand in the event unfavorable G forces made grasping the face blind actuator difficult (it is interesting to note that this innovation is now used almost uniformly by all current ejection seat systems).
		Seat actuation was again initiated by either use of the a face blind or a secondary "grab-loop" situated on the seat between the occupant’s knees.
		The Mk.IV seat incorporated for the first time a between the legs ejection handle as a secondary means of actuation ejection, since it had been determined that in certain situations the effects of adverse inertia and G loading made it difficult to use the conventional face-curtain actuator.
	webs.lanset.com /aeolusaero/Articles/seat_history.htm (17353 words)

	Chapter 5 - Navy Aircrew Common Ejection Seat (NACES)
		Ejection control handle safety pins and safe/armed handles are provided to render the ejection seats safe when the aircraft is parked between flights and at all other times on the ground.
		Ejection is initiated by pulling a seat firing handle situated on the front of the seat bucket between the occupant's thighs.
		The seat is stabilized and the forward speed retarded by a drogue and bridle system, followed by automatic deployment of the personnel parachute and separation of the occupant from the seat.
	www.tpub.com /asm/32.htm (872 words)

	Russian Ejection Seat Considered for F-22 (Site not responding. Last check: )
		THE SEAT IN THE F-22 wouldn't be identical to the one that saved the lives of test pilot Viacheslav Averyanov and his copilot during the Paris air show (AWandST June 2 1, p.
		seat was too heavy and the headrest too large for pilots; to be able to "check 6," that is, look directly behind them.
		seat, the K-36/3.5, that was designed to have similar performance as the heavier seat.
	www.aeronautics.ru /nws001/awst015.htm (717 words)

	Modeling ejection seats
		Most of the modern seats are known simply as "0-0" (zero-zero) seats, meaning that they are fully capable of ejection of the aircrewmen from "0" feet altitude and without any forward airspeed (as opposed to earlier seats which required a predetermined altitude and speed for safe deployment of the seat and its parachute).
		The seat is usually mounted onto or into to the aircraft using a "rail" type of system and often attached to the back of the bulkhead itself, rather than the floor of the aircraft (which appears to be the way most model kits depict them).
		One is the ability for the seat to work effectively underwater (should the aircraft be submerged), with full oxygen supply to the pilot (assuming his oxygen mask is in place) and the ability of the pilot's parachute and harness to separate while in the water.
	showcase.netins.net /web/herker/ejection/model.html (4238 words)

	Ejection Seat Restoration
		Since I have two seats, my first seat out of 0286 I left original as it came out of the jet, I figured it would be neat to have one that looks 'Brand New'.
		I totally disassembled the seat down to individual nuts and bolts when possible.
		Disassembling the seat, getting everything cleaned and prepared for painting, priming and painting takes a considerable amount of time if you're doing it right.
	www.topflightimaging.com /ejectionseat/7300disassembly.html (357 words)

	Aerospace Application: Ballistic Ejection Seat Testing
		Ejection seats thrust pilots from flying craft quickly and safely when their lives are in imminent danger or they lose control of the craft and are unable to land it safe and sound.
		Modern ejection seats contain a certain amount of intelligence that decide how the pilot will be released from the seat once outside of the craft.
		In addition, a variety of seat actuators use ballistic-driven components such as explosive bolts and shear pins to deploy the ejection seats, remove the pilots from the seat at the optimal time, and inflate their parachutes.
	www.iotech.com /an85.html (426 words)

	TORNADO EJECTION SEAT PRINCIPLES - WHEN EVERYTHING GOES WRONG (Site not responding. Last check: )
		The ejection seat is mounted on the combined guide rails and telescopic ejection gun unit which in turn is attached to the aircraft structure.
		The ejection gun provides the initial thrust for seat ejection by means of one primary and two secondary cartridges propelling pilot and navigator in their seats from 0-160 mph in a quarter of a second.
		A multi-tubed rocket motor under the seat pan is ignited, as the seat leaves the ejection gun and sustains the thrust initially impart by the ejection gun, to carry the seat to sufficient height to enable the parachute to deploy and develop even if ejection is initiated at zero speed at ground level.
	www.rafmarham.co.uk /relations/stories/ac-crash/eject-story.htm (595 words)

	CTC and Goodrich Successfully Develop Modular Ejection Seat Prototype for Air Force
		The new Modular Ejection Seat will accommodate current ACES II subsystems, including ballistics components as well as components that are currently under development, and improve safety.
		These improvements are achieved by the design of the modular structure, which allows the seat to be disassembled and removed from the cockpit, by sections, without first requiring the removal of the aircraft canopy or hatch.
		The seat has been well-received by aircraft maintainers, and the increased safety aspects of the seat structure are welcomed by the larger-in-stature aircrew members.
	www.ctc.com /news/2006/06feb22_pr.cfm (647 words)

	The Ejection Site: HomeBuilt Sim featuring F-100 Ejection Seat
		Upon ejection, the anchored ropes were pulled through a series of spools that provided enough friction to help stabilize the seat as it ejected off of its track and away from the aircraft.
		The hanging coiled electric cord was connected to the seat actuator assembly that attached to the chair via the two lift points to the right of it.
		The electric switch used for raising and lowering the seat is located on the left arm rest and the electric wires to the actuator traveled up the back of the seat on the right.
	users.bestweb.net /~kcoyne/f100proj.htm (1898 words)

	MILESTONES IN EJECTION SEAT HISTORY
		Schwab’s second ejection, the first being in 1984 when he escaped from a Hawk trainer that was sliding along the ground after the collapse of its landing gear.
		Martin-Baker is the World's longest established and most experienced manufacturer of ejection seats and related equipment that safeguards the aviator throughout the escape, survival, location and recovery phases.
		In the intervening 54 years Martin-Baker has continued to lead the way in ejection seat technology by introducing many advances in crew safety that provide the very best chance of survival for the aviator who is forced to abandon his or her aircraft.
	www.ejectorseats.co.uk /milestones_in_ejection_seat_hist.htm (1131 words)

	Bad Designs - Ejection seat
		He reached down under the front of the seat, feeling for the seat adjustment control.
		Most people wouldn't expect a lever near the front of the seat to detach the seat from the floor.
		The control could be repositioned beneath the seat in such a way that it can not be reached while sitting on the seat.
	www.baddesigns.com /carseat.html (190 words)

	Martin Baker Mk H7 Ejection Seat
		While obtaining pieces that the seat was missing, I thought I would do some research on the jet it came out of and attempt to collect as many photos of her that I could during her operational life.
		While I left the seat from 0286 in original condition, I decided to restore this seat to new condition.
		These seats complete weigh close to 300 pounds so the casters make moving to clean them and the area around them much easier.
	ejectionseat.topflightimaging.com (301 words)

	Ejection Seat Trivia
		One of these attempts that was pursued was an ejection seat that deployed a set of non-powered rotors overhead and a small gas powered engine on the back for forward propulsion.
		As the seat moved forward the relative motion would cause the rotors to spin and produce lift.
		Tie: The two most spectacular ejections at airshows were both Russian K36 seats being demonstrated first at the 1989 Paris International Airshow when a Mig 29 lost an engine during a low altitude knife edge pass.
	www.ejectionsite.com /ejecttriv.htm (1055 words)

	YouTube - Development, history, and evolution of ejection seat
		The ejection seat is a device to esca...
		The ejection seat is a device to escape from the aircraft in the emergency.
		The passenger is thrown out each seat outside the machine by the rocket motor etc., and comes down on a parachute when operating.
	www.youtube.com /watch?v=XjZOdjPlfiA (178 words)

	The MiG-21 Page - Ejection Seat (Site not responding. Last check: )
		The seat is propelled from the aircraft by an ejection gun which is assisted by a rocket motor.
		The ejection seat system also includes an emergency oxygen system and a survival kit in the seat pan.
		Once the Pilot pulls the ejection handle the canopy cartridge ignites and jettisons the canopy which removes the interlock block. Simultaneously with the canopy jettison, a second cartridge initiates shoulder harness tightening and arm protector extension.
	www.topedge.com /panels/aircraft/sites/kraft/km1.htm (474 words)

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