Stealth UH60(?) used in OBL raid...
Joined: Apr 2008
Posts: 19
Likes: 0
From: Cotswolds UK
Silent Hawk anyone?
http://www.militaryphotos.net/forums...hmentid=155097
No idea of provenance mind...
http://www.militaryphotos.net/forums...hmentid=155097
No idea of provenance mind...
Joined: May 2007
Posts: 740
Likes: 58
From: Nottinghamshire
A photoshop mockup based on the pictoral evidence (from Militaryphotos.net). Very well done though! - Some astonishing tripe being written about it (the mystery helecopter) too... Makes my 'night before' speedhawk conjecture almost plausible...
Joined: Jul 1999
Posts: 3,040
Likes: 0
From: 58-33N. 00-18W. Peterborough UK
BBC report that White House is now saying there was a deliberate 25 minute video feed blackout during the operation. No one, unless they were there, saw what went on inside the compound.
Whatever next?
Whatever next?
Joined: May 2011
Posts: 559
Likes: 86
From: Beyond the M25
Hmmm, not a fenestron but in terms of the configuration of the individual tail rotor blades, their chord and length there is certainly a similarity with those of the Comanche.
This would tie in with the reoprted aspects of acoustic LO propoerties with the helicopter also....
This would tie in with the reoprted aspects of acoustic LO propoerties with the helicopter also....
Joined: Aug 2009
Aviation Qualifications: Military
Posts: 9,337
Likes: 2,185
From: Texas
"The crashed helicopter's tail rotor bears more than a passing resemblance to that of the cancelled Boeing-Sikorsky RAH-66 Comanche "
Actually, what you are referring to looks a bit like the Main Rotor Hub (five bladed) of the Comanche.
I am trying to understand who is seeing a forward sweep of the horizontal stab. In a hover, stab is typically 40 degrees down from the horizontal, in the S-70 class. I think perhaps the horizontal stab being in hover configuration is being seen in these photos as "sweep" of the horizontal stab.
Or am I missing a few photos that show a real sweep?
Actually, what you are referring to looks a bit like the Main Rotor Hub (five bladed) of the Comanche.
I am trying to understand who is seeing a forward sweep of the horizontal stab. In a hover, stab is typically 40 degrees down from the horizontal, in the S-70 class. I think perhaps the horizontal stab being in hover configuration is being seen in these photos as "sweep" of the horizontal stab.
Or am I missing a few photos that show a real sweep?
Joined: Jan 2001
Posts: 3,373
Likes: 2
From: Home
Nope, it definately has a forward sweep.
And fenestrons are totally different, and certainly in the case of the gazelle, not quiet!
Is it just me that would love this to be an elaborate hoax from the yanks to throw everybody into a tiz and have the chinese/russions frantically trying to work out why you would have a forward swept stabiliser?
And fenestrons are totally different, and certainly in the case of the gazelle, not quiet!
Is it just me that would love this to be an elaborate hoax from the yanks to throw everybody into a tiz and have the chinese/russions frantically trying to work out why you would have a forward swept stabiliser?
Per Ardua ad Astraeus
Joined: Mar 2000
Posts: 18,575
Likes: 4
From: UK
Originally Posted by Janes Weekly
However, it is not clear if development has progressed to the point where a system can yet be employed on operations.
Joined: May 2011
Posts: 559
Likes: 86
From: Beyond the M25
I think he was probably referring to the Sikorsky system in particular BOAC as opposed to other such systems in general.
As for fenestrons being universally noisy - not true ( Comanche being a case in point).
Perhaps more interestingly, did anyone else note that the fuselage seems to extend into an aerodynamic fairing that protrudes beyond the vertical stabiliser?
As for fenestrons being universally noisy - not true ( Comanche being a case in point).
Perhaps more interestingly, did anyone else note that the fuselage seems to extend into an aerodynamic fairing that protrudes beyond the vertical stabiliser?
Joined: Jan 2001
Posts: 3,373
Likes: 2
From: Home
Hmm, certainly I was under the impression that the purpose of the fenestron was efficiency. ie good thrust from a ducted fan when required in the hover coupled with very effectively offloading in forward flight due to the shroud and tail
Joined: Feb 2006
Posts: 3,536
Likes: 295
From: The Alps
Here are 2 views of the 2nd Comanche prototype I took at on the first day of Farnborough 98
Admittedly whats the MRH may resemble the crashed helo's tail rotor design, how about this X2 tech up front (as below from my visit to Heli Expo a few months ago)
Unless X2 tech has already gone to war 
Admittedly whats the MRH may resemble the crashed helo's tail rotor design, how about this X2 tech up front (as below from my visit to Heli Expo a few months ago)
Unless X2 tech has already gone to war
Last edited by chopper2004; 4th May 2011 at 18:16.
