My mind wanders towards Howard Hughes Sprucegoose. Most expsensive in its era, unlikely from the planning to succeed, and is more a piece of military jewelry than most other planes.
http://www.sprucegoose.org/aircraft_art ... ibits.html
I'm inclined to disagree... the Hercules ("Spruce Goose" was a derisive monicker made up by the press; also it was made primarily of birch, not spruce) was expensive because it was a prototype of the largest aircraft ever built. The best engines available; the best everything... and overseen by a very fussy guy (Hughes) who liked to micro-manage such projects. Every aircraft prototype costs more than the production models, and if it was a Hughes aircraft, it was going to be even more so.
Hmmm... there are more than 5, but in no particular order, here's five "good" ones:
1) Christmas Bullet (flexible wings with no actual warping system; inadequate rudder. The first time anyone tried to fly one, the wings came right off it)
One of the most unusual aircraft ever to fly from Lakehurst was the Piasecki PA-97 Heli-stat.
The Heli-stat had been built under a 1980 U.S. Navy contract for the Forest Service to demonstrate economic & ecological potential of heavy vertical air lifters in harvesting timber & other natural resources in difficult-to-get-to terrain. The demonstration vehicle utilized a Navy ZPG-2W aerostat (with a 1-million cubic-foot envelope) and 4 surplus Sikorsky H-34J helicopters.
Inflating the aerostat envelope with helium to its length of 343 feet
made the Heli-Stat the largest aircraft in the world (longer than the span of the Hughes flying boat).
The first free hovering flight of the Piasecki PA-97 Heli-stat was made at Lakehurst on April 26, 1986.
On July 1, 1986 the Helistat had just completed a test flight successfully & landed at Lakehurst.
A power loss was noted on the #3 helicopter & the test was terminated & the mooring mast called for.
Prior to re-mooring a wind shift caused an uncommanded left turn which the pilot could not counteract with the flight controls.
With a tailwind, no wheel brakes or ground steering a takeoff was attempted.
The 4 main landing gear which had no shimmy dampers started to shimmy.
The 4 helicopters started to react to the shimmy with ground resonance.
As the Helistat finally lifted off, the 4 individual helicopters broke off & fell to the ground.
One pilot was killed, 3 received serious injuries, one received minor injuries. and the Helistat was destroyed.
The power loss on the #3 helicopter was traced to a missing throttle linkage correlation pin.
http://www.airfields-freeman.com/NJ/Airfields_NJ_E.htm
http://video.google.com/googleplayer.sw ... 9001888697
From another forum...
"And those guys call themselves ENGINEERS?"
That's an incredible piece of film. I think it confirms that airships will always be vulnerable near the ground however well they're designed.
That's an incredible piece of film. I think it confirms that airships will always be vulnerable near the ground however well they're designed.
Here is a topical answer, the worst aircraft of all time, the one that has crashed (for what ever reason ((just over 70 involving at least one death))) the most, currently running at about 180............the 737 :-?
Matt
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