jawed From United States of America, joined Sep 2006, 482 posts, RR: 0 Posted (2 years 10 months 3 weeks 2 days 10 hours ago) and read 5990 times:
I know this is a far-fetched scenario, but would it be theoretically possible for a person to egress from a Gulfstream private aircraft in flight using a parachute?
Let's assume that the pilot could slow down the jet as much as possible (while still maintaining lift), and that the jet could be flown to a much lower altitude (like 6,000ft vs 40,000 ft) where breathing is possible.
Could the doors even be opened in flight? Or would this by itself be completely impossible due to the pressurized cabin?
rfields5421 From United States of America, joined Jul 2007, 7681 posts, RR: 33
Reply 2, posted (2 years 10 months 3 weeks 2 days 9 hours ago) and read 5962 times:
The door can come open. It might not be designed to come open in flight, but if there is a malfunction as we saw with the Challenger recently - it could happen.
I personally would never try to jump out a door that far forward with the wing right where I would be blown as I exited the aircraft. Even the WWII movies where we see folks jumping from DC-3s flying under 80 KIAS, they are blown backward quite a bit.
At 150 knots (the jump would have to be with the gear retracted) it is going to move the jumper 30-50 feet straight back before the downward movement starts.
KPWMSpotter From United States of America, joined Dec 2006, 470 posts, RR: 2
Reply 3, posted (2 years 10 months 3 weeks 2 days 9 hours ago) and read 5948 times:
I toured the Bombardier Learjet facility in Wichita recently. The prototype Global Express was hangared there, it was outfitted with a small ballistic parachute in the tail. The parachute was apparently installed to help stabilize the aircraft if it entered a deep stall condition. The flight test engineer I was talking to stated that it wasn't there to help save the aircraft, it was there to buy the pilots some extra time as they ran for the door.
That being said, it would seem that the people at Bombardier were willing to give it a shot from a Global Express in an extreme scenario. It's likely that the door was also outfitted with some sort of explosive bolt system during flight test to assist an emergency egress too though.
Most business jets aren't equipped with plug doors, making it easier for someone to potentially open a door in flight. I'm not entirely sure about the Gulfstream, but most jets with integral airstairs in the doors aren't plug type. That being said, even if you could open the door, there's still an awful lot of stuff (wing, engines, tail) to dodge after jumping out. Probably not a very good idea to try...
KELPkid From United States of America, joined Nov 2005, 6525 posts, RR: 3
Reply 4, posted (2 years 10 months 3 weeks 2 days 8 hours ago) and read 5915 times:
My #1 fear:
Getting sucked into the #1 engine
Whack the wing, get knocked unconscious, or fatally wounded, and at the same time render the aircraft uncontrollable somehow
The same as #2, but on the vertical stabilizer or tail. Yes, relative airflow can pick you up D.B. Cooper had the right idea, egress from a point in the aircraft that is free of flight surfaces and engines
Celebrating the birth of KELPkidJR on August 5, 2009 :-)
dlednicer From United States of America, joined May 2005, 552 posts, RR: 6
Reply 11, posted (2 years 10 months 3 weeks 1 day 15 hours ago) and read 5553 times:
AIRLINERS.NET CREW DATABASE EDITOR
Quoting KPWMSpotter (Reply 3): The prototype Global Express was hangared there, it was outfitted with a small ballistic parachute in the tail. The parachute was apparently installed to help stabilize the aircraft if it entered a deep stall condition.
The prototype Canadair Challenger was fitted with just such a parachute. In flight test on April 3, 1980, the plane entered a deep stall condition and the pilot fired the chute. The chute helped the aircraft recover from the deep stall, but then the pilot found that he couldn't jettison it. The co-pilot and flight test engineer bailed out through the aft baggage door. The pilot for some reason waited too long and didn't make it out before impact.
Bombardier then made the activation of the parachute a two-step process: first close the jaws securing the chute and then fire the chute. On July 26, 1993, a CRJ100 in flight test entered a deep stall. In his haste, the pilot did step two without doing step one. The chute was ejected from the airplane. The crew of three was killed in the ensuing crash.
soon7x7 From , joined Dec 1969, posts, RR:
Reply 14, posted (2 years 10 months 3 weeks 5 hours ago) and read 5216 times:
Quoting Chese (Reply 5): The only real shot you have is going out the baggage door. It is accessible from the cabin and big enough to egress out through.
The only way to exit any Gulfstream during flight is out the baggage. The airstair would not survive the opening, nor would the jumper. As far as the overwing exits, you got big suckers too close to the wing, instant chopmeat. Better consider a different ship for the jump!
jawed From United States of America, joined Sep 2006, 482 posts, RR: 0
Reply 15, posted (2 years 10 months 2 weeks 3 days 16 hours ago) and read 4780 times:
That's a very interesting idea. I hadn't thought of the baggage door as an inflight-egress.
Could any Gulfstream Pilots comment on how realistic this is? (assuming a total emergency and that you have a parachute)
Quoting soon7x7 (Reply 14): The only way to exit any Gulfstream during flight is out the baggage. The airstair would not survive the opening, nor would the jumper. As far as the overwing exits, you got big suckers too close to the wing, instant chopmeat. Better consider a different ship for the jump!
soon7x7 From , joined Dec 1969, posts, RR:
Reply 16, posted (2 years 10 months 2 weeks 2 days 13 hours ago) and read 4554 times:
I'm not a Gulfstream Pilot but I am a pilot and MX and working on a G-V today...I'll shoot you a shot of the hatch...it is located under the port engine pylon, aft of the intake and away from the exhaust. In addition the door tracks up INSIDE the baggage compartment...I would believe it to be most probable...g