Article

2007-04-25 Europe

Swedish Gripen Fighter Cratered; Pilot's G-Suit Blamed

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Posted by mrp 2007-04-25 06:41|| || Front Page|| [1 views since 2007-05-07] Top

#1 ...I want to see the ejection seat that is positioned just right and is so sensitive that an inflating G-suit will trigger it.
EVERY e-seat I've ever seen has a handle either on the front of the seat between the pilot's calves, in the armrests, or above his head. These handles require a pulling motion to activate them, not a pushing or turning, for the simple reason that it is just way to easy to activate the seats in that fashion.

Mike

Posted by Mike Kozlowski 2007-04-25 08:54|| 2007-04-25 08:54|| Front Page Top

#2 The later model Martin-Baker ejection seats have the ejection handle at the pilot's crotch. Guess it's easier to reach than the ones at the calf or head if the pilot is injured or in a violent spin.

Posted by ed 2007-04-25 09:31|| 2007-04-25 09:31|| Front Page Top

#3 Kinda makes me wonder what is the pull length of the handle if an inflating bladder can set it off.

Posted by ed 2007-04-25 09:33|| 2007-04-25 09:33|| Front Page Top

#4 Don't they make pills for premature ejection?

Posted by DarthVader">DarthVader 2007-04-25 11:00|| 2007-04-25 11:00|| Front Page Top

#5 Maybe the guy was having some fun and pulled the wrong lever.

Posted by Pee Wee 2007-04-25 11:51|| 2007-04-25 11:51|| Front Page Top

#6 Yeah, like looking at Isabel Lestapier Winqvist in the FHM magazine he stuffed into his leg pocket.

Posted by Procopius2k 2007-04-25 12:50|| 2007-04-25 12:50|| Front Page Top

#7 seems a bit of a reach to me also; the connecting tube for the g suit goes typically to a connector on a side console, well away from any e-linkage or handles so any movement would be very unlikely to cause the ejection. Many years ago, in a trusty Intruder, the B/N (bombadier / naviguesser) partially ejected; one of the fittings on the Martin Baker corroded and failed, allowing the seat to ride up the rails about 6 or 7 inches. the strikers on top broke the canopy and the BN was exposed to the windstream from the neck up. the wind ripped the drogue chute from the pack and it wrapped around the horizontal stabilizer. Pilot did a superb job recovering back on the boat and not allowing his partner to get shredded by the sharp plexiglass edges on the leading edge of the hole in the canopy. perhaps the seat on this aircraft suffered a mechanical failure some sort and triggered the ejection sequence. the A-6 seat, was estimated to be only about one inch away from rocket motor actuation. (for the doubters: google up VA -95, bn ejection)

Posted by USN, Ret. 2007-04-25 15:28|| 2007-04-25 15:28|| Front Page Top

#8 USN,

I've seen the official investigation pics of that - one of the items I helped care for and feed during my time was ejection seat catapults and all the other associated explosives. That is one of the more unbelievable explosives accidents I've ever seen.

Now - went to the Martin-Baker site (the world's premier manufacturer of ejection seats and builder of the seats for the Gripen). The page for the seat has a pic that clearly shows a PULL handle on the seat pan between the pilot's legs:

http://www.martin-baker.com/eject_mk10l.html#

Now how the heck was that activated by an inflating G-suit?

Mike

Posted by Mike Kozlowski 2007-04-25 16:05|| 2007-04-25 16:05|| Front Page Top

#9 Mike: I agree, that the gsuit theory is right out there with the second gunman on the grassy knoll; there is more to this than meets the eye and methinks they want to pilot to be blamed.
PAX River lost a Hornet to an 'impossible' design flaw in the 91-94 time frame; had to do with a stretched wire (due to airframe flex) that caused a computer to shut down a hydraulic system that was operating; the only one as it turned out since the other failed.

Posted by Ghost of BudnLou 2007-04-25 18:19|| 2007-04-25 18:19|| Front Page Top

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