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schweizair
Topic Author
Posts: 138
Joined: Tue Mar 09, 2004 4:54 pm

When Is The Sky The Limit

Wed Apr 14, 2004 6:06 am

What is the largest plane ever to take off from an aircraft carrier of any nation? What was the carrier's name? I do know that the pressure has to be set for each plane used. Do size and weight make it dangerous to launch something larger than an E2C Hawkeye or is there a plane larger than that in use?
 
cannibalz3
Posts: 382
Joined: Mon May 21, 2001 2:10 pm

RE: When Is The Sky The Limit

Wed Apr 14, 2004 6:13 am

The US has tested C-130s and U-2s off carriers, but to my knowledge they were just tests and were never done more than a few times. There's a video of the C-130 taking off the deck, it's pretty impressive.
 
bsergonomics
Posts: 458
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RE: When Is The Sky The Limit

Wed Apr 14, 2004 8:14 am

Newton had a part in it...

F=MA

If you mix that with the lift generated by the wings at a given speed and take into account its drag, you have your answer (more or less).

I agree in that the C-130 video is really rather impressive. That said, go for a stroll on an airfield and then go for a stroll on an aircraft carrier deck (remembering that they don't use all of the length of the deck). ALL aircraft taking off from a carrier are rather impressive...
The definition of a 'Pessimist': an Optimist with experience...
 
WrenchBender
Posts: 1662
Joined: Wed Feb 04, 2004 5:59 am

RE: When Is The Sky The Limit

Thu Apr 15, 2004 6:45 am

Have a look at these
Nasa converted DHC 5 Buffalo doing bumps & grinds on USS Kitty Hawk in the 80's





or this check this website for more Buff stuff
http://www.oc-kahuna.com/Buffalo9.html

WrenchBender


Silly Pilot, Tricks are for kids.......
 
sovietjet
Posts: 2686
Joined: Sat Mar 15, 2003 12:32 am

RE: When Is The Sky The Limit

Thu Apr 15, 2004 10:15 am

I believe the An-71 was meant to be launched from carriers....
 
2912n
Posts: 1978
Joined: Mon Oct 08, 2001 2:12 pm

RE: When Is The Sky The Limit

Thu Apr 15, 2004 12:15 pm

None of the a/c mentioned above were cat launced from the carrier. (The AN-71 was designed to be launched from a carrier (never put into service) but was it to be catapulted?)

The KA-3 "Whale" may have been the heaviest a/c regularly launched from carriers.
 
USAFHummer
Posts: 10261
Joined: Thu May 18, 2000 12:22 pm

RE: When Is The Sky The Limit

Thu Apr 15, 2004 1:25 pm

A U-2 off of a carrier??? Source please???

Greg
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Soren-a
Posts: 223
Joined: Wed Sep 26, 2001 10:13 pm

RE: When Is The Sky The Limit

Thu Apr 15, 2004 2:21 pm


http://www.afa.org/magazine/feb2001/0201spyplane.asp is a link to an article and pics of the U-2's carrier landings.

Regards
Søren Augustesen
 
USAFHummer
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Joined: Thu May 18, 2000 12:22 pm

RE: When Is The Sky The Limit

Thu Apr 15, 2004 2:33 pm

Thanks for the very interesting link there Soren, one of the more fascinating things Ive read recently...

Greg
Chief A.net college football stadium self-pic guru
 
saintsman
Posts: 2037
Joined: Fri Mar 15, 2002 12:34 am

RE: When Is The Sky The Limit

Thu Apr 15, 2004 4:01 pm

Yes, an excellent article but what does confuse me a little is the landing. On a conventional U2 the aircraft is stabilised on landing by a truck catching it under the wing. Thats fine on a runway where you have the time and distance but on a carrier you don't have that luxury. Did the hook just stop the aircraft and then it topple over?
 
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Cadmus
Posts: 173
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RE: When Is The Sky The Limit

Thu Apr 15, 2004 5:34 pm

The US Navy investigated the use of the DC-9-20 for the COD mission in the early 1970's. According to Great Airliners Series: Volume 4:-

"The most noticeable exterior change was the re-positioning of the nose wheel 12 feet 6 inches farther aft. The gear strut could also be extended by two feet to give the aircraft a 6-degree nose-up attitude for a catapult launch. local structural strengthening was required for both the retractable tail hook and the catapult hold-back attachments and heavier landing gear struts were substituted to absorb the deck-landing loads.
Provisions were made for an in-flight refueling probe located below and ahead of the pilot's windscreen and the fitting of pylon attachment points some 12 feet inboard from each wing tip. These pylons were designed to carry a pod containing a standard USN 'buddy' refueling package consisting of a pump and drum-mounted flexible hose with an attached drogue basket. An additional 780-gallon tank in the forward hold plus a second 1,000-gallon unit in the rear hold would have permitted the tanker to off-load more than twice the fuel volume of either the Skywarrior or the tanker version of the A-6 Intruder.
One other exterior change was the elimination of the heavy thrust reversers, replaced by simple straight exhaust cones. The thrust reverser were of no use beacuse instant full power for a 'bolter' - due to a missed approach or the failure of the hook to engage the wires - was required. The aircraft would be stopped during deck landings by the arrestor hook only. The MTOW for shore based operations was 110,000 pounds, but catapult limitations reduced on-board MTOW to 104,000 pounds. The carrier landing weight was restricted to 75,000 pounds, versus 93,400 pounds ashore. Overall COD modifications raised the empty weight 3,000 pounds; nearly half the increase came from the stronger landing gear. The built-in airstairs were also removed to save weight, and replaced by a standard crew ladder. The engines were JT8D-9s.
As the aircraft would normally spend minimal time aboard the ships, a folding wing system was deemed to be unnecessary. A typical turnaround time for the C-9 (COD), from landing until being catapulted off was intended to be 30 minutes. Because of the cargo door location, the C-9 could be parked with the tail overhanging the deck edge while safely off-loading and loading personnel and cargo.
The folding wing aspect was explored - the wing fold point being between the elevators and flaps, and the wings folding 115 degrees. For deck parking, the folded span was 58.5 feet. A more complex change moved the hinge line inboard to give a folded span of just 47 fet and, with the nose gear strut extended to lower the tail, the aircraft could be taken down to the hangar deck on larger carriers."

Apparently, the winding down of the Vietnam campaign removed the need for this development.
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