Voyager schrieb:
Der ging nicht nach unten, sondern brauchte eine gewisse Mindestgeschwindigkeit und Mindestflughöhe. Ein Ausschuß am Boden mit dem C-2 hätte den Sitz nicht weit genug nach oben befördert, dass der Rettungsschirm geöffnet werden hätte können.
Achso
Ich hab hier ein paar Informationen gefunden (ich hoffe die Quelle ist glaubwürdiger
) :
http://www.starfighters.nl/
Original F-104s built for the U.S. Air Force were equipped with downward ejecting pilot seats. Two reasons:
# At that design period, no seat had been developed or was available that Lockheed felt had sufficient boost to always push the pilot clear of the T-tail.
# It was surmised that essentially all ejection's would be accomplished at altitudes high enough for successful completion of the manoeuvre. Since then, a capable upward-ejecting system has become available - the C-2 model. The C-2 was selected for installation in all Starfighter's.
The C-2 seat
Capable of providing full recoveries at airspeeds from approximately 100 to 550 knots and altitudes from ground level to 50,000 feet, the C-2 leaves the Super Starfighter via a rocket catapult device. At or near ground level the timing mechanism is set to separate pilot from seat one second after ejection - and parachute deployment one second later.
Separation sequence
To eject, the pilot pulls a D-shaped ring located between his feet on the seat bucket structure. The ring fires two initiators. One ejects the canopy. The other starts pre-ejection functions. In three-tenths of a second, this happens: Metal stirrups pull feet close to the body and hold them until time of man-seat separation. Knee guards rotate into position to prevent leg spreading and to counteract effects of airloads. Arm support webbing flips up and prevents outward movement of arms. Moving up the rails, the seat hits a striker and - one second later - the lap belt is released, foot retention cables are cut and the pilot-seat reel operates. (Pulling the D-ring also operates a backup system that fires a delay initiator into the catapult unit and a second one into foot cable cutters.)
Rocket catapult
The XM-10 rocket-catapult, a pyrotechnic propulsion unit, fits on the seat back upper cross-beam member and moves up and down with seat adjustments.
Leaving the seat
Forcible separation is actuated pyrotechnically by a windup reel behind the head rest. Nylon webbing is routed from the reel down the forward face of the seat back, under the survival kit, and secured to the forward seat bucket lip. Sequenced with the lap belt release, the webbing is drawn taut between the head rest and the lip in two-tenths of a second, "pushing" the pilot out and away from the seat one second after ejection. To assure proper foot retention and retraction, the pilot wears foot spurs equipped with ball sockets at the back. The ball lock end, engaged by spurs, is attached to cables that pull feet rearward and secure them in foot shelf units. Two initiators, fired one second apart, cut cables free at the proper time. Carried on the aluminum alloy seat is an automatic survival kit that includes disconnect hardware, automatic life raft inflation, high-pressure emergency oxygen bottles with 15 minutes' duration, and a regulator suitable for partial pressure suits above 42.000 feet.
Martin Baker seat
In 1968 NATO partners Denmark, Greece, Italy and Germany started to exchange the C-2 seats for the Martin Baker seats (MK GQ 7 A(T)).
