You are at netAirspace : Forum : Air and Space Forums : Military Aviation

Mutant OH-58D

Your online Air Force Base.
 

miamiair (netAirspace FAA) 02 Jun 10, 14:54Post
AVX Aircraft is proposing to convert the U.S. Army’s existing OH-58Ds by replacing the conventional rotors with co-axial counter-rotating rotors and ducted fans instead of a tail rotor. AVX spokesman Mike Cox says an investment of $31 million would result in the development of a concept demonstrator aircraft which, he claims, could be flying within 18 months. However, he notes that the company does not want to begin a manufacturing line and was talking to a number of potential partners, including Bell Helicopter, although all talks are at a very early stage.

Image
And let's get one thing straight. There's a big difference between a pilot and an aviator. One is a technician; the other is an artist in love with flight. — E. B. Jeppesen
miamiair (netAirspace FAA) 02 Jun 10, 14:55Post
I see a slight CG issue.
And let's get one thing straight. There's a big difference between a pilot and an aviator. One is a technician; the other is an artist in love with flight. — E. B. Jeppesen
GQfluffy (Database Editor & Founding Member) 02 Jun 10, 15:19Post
Maybe that double rotor is heavier than it looks? {crazy}
Teller of no, fixer of everything, friend of the unimportant and all around good guy; the CAD Monkey
bhmbaglock 02 Jun 10, 16:53Post
miamiair wrote:I see a slight CG issue.


I don't see that, but their cost estimate of under $2M per frame is questionable.

The company needs to raise $30 million to launch a proof-of-concept demonstration using a Bell 206, with first flight possible within 18 months. It plans to offer the product to the army as a $1.5 million kit upgrade, with a non-recurring engineering bill amortised over 360 aircraft of $250,000 each, Gaffey says.


http://www.flightglobal.com/articles/20 ... ement.html

Sikorsky's option is a purposer built coaxial pusher design that looks a lot like the Cheyenne from a while back. The prototype is already flying and is on its way to expanding its envelope to 250 kts.

Image

http://www.flightglobal.com/articles/20 ... rrier.html

EADS plans to propose a derivative of the Lakota:

http://www.shephard.co.uk/news/rotorhub ... amme/6127/

If the Army decides to move on this quickly then the EADS proposal looks like the winner. If they can wait for the technology to mature a bit then I'd bet on Sikorsky but others might give it a shot as well with clean designs.
Lucas (netAirspace ATC & Founding Member) 02 Jun 10, 21:29Post
bhmbaglock wrote:
If the Army decides to move on this quickly then the EADS proposal looks like the winner. If they can wait for the technology to mature a bit then I'd bet on Sikorsky but others might give it a shot as well with clean designs.


The pusher looks scarily close to the ground.
 

Who is online
Users browsing this forum: No registered users and 6 guests

LEFT

RIGHT
CONTENT