Unknown Rotorcraft to Marine OVX Light Observation requirement

[circle-5]

This one has me puzzled. The powerplant and rotor system are likely to be Sikorsky's ABC (Advancing Blade Rotor), because of the fixed (non-rotating) sail fairing between the rotors. Beyond that, I can only speculate – could it be an alternate study by Sikorsky for AAFSS? I hope the SPF Brain Trust will know!

 

[hesham]

Great find my dear Circle-5,

and that's concept was nearly to Gyrodyne work ?.

 

[ZacYates]

I don't know what it is but I want to see more! Very cool!

 

[Orionblamblam]

This one has me puzzled. The powerplant and rotor system are likely to be Sikorsky's ABC (Advancing Blade Rotor), because of the fixed (non-rotating) sail fairing between the rotors. Beyond that, I can only speculate – could it be an alternate study by Sikorsky for AAFSS? I hope the SPF Brain Trust will know!

How certain is it that this is a Sikorsky design? I've tinkered with the tail to bring out the logo, but, apart from looking like a velociraptor it doesn't immediately remind me of any corporate logos I'm aware of.

The aircraft itself looks not entirely unlike the Ryan "Disk Rotor" COIN aircraft from the 60's:
http://www.secretprojects.co.uk/forum/index.php/topic,22016.msg16218.html#msg16218

 

[GeorgeA]

How certain is it that this is a Sikorsky design? I've tinkered with the tail to bring out the logo, but, apart from looking like a velociraptor it doesn't immediately remind me of any corporate logos I'm aware of.

The bird is pointing the wrong way for North American or Grumman. If it's a shooting star and not a bird, could be Lockheed.

 

[circle-5]

How certain is it that this is a Sikorsky design? I've tinkered with the tail to bring out the logo, but, apart from looking like a velociraptor it doesn't immediately remind me of any corporate logos I'm aware of.

The bird is pointing the wrong way for North American or Grumman. If it's a shooting star and not a bird, could be Lockheed.

The aircraft type below the logo looks like "OVX" (I think). A VTOL Bronco? Anything was possible, back in those days ...

 

[Michel Van]

I look with graphic program on Picture

This model is labeled with "127" "MARINES" "OVW" "41574" and triangular logo like arrow

had Kaman Aircraft not a arrow like logo in 1960s ? (i don't know)

from the fuselage it look like contender for COIN and LARA program

 

[overscan (PaulMM)]

So OVX was a requirement for a Marine light observation aircraft in 1976 - 1978 timeframe. This fits the general look of the design.

https://www.google.co.nz/search?q=OVX%E2%80%94+Marine+light+observation+aircraft#q=OVX%E2%80%94+Marine+light+observation+aircraft&tbm=bks

 

[overscan (PaulMM)]

And it is mentioned in Aviation Week, January 31st 1977...

 

[overscan (PaulMM)]

I assume there are no more pictures? Given the timeframe, it's more likely Sikorsky than not, given the ABC-style rotor blades.

Some possible leads:

Military potential of the ABC. G Price (United Technologies Corp., Sikorsky Aircraft Div , Stratford. CT). Vertiflite. vol 28 Nov-Dec 1982
Fifty Years of Sikorsky High Speed Concepts, Arthur W. Linden. Presented at the 64th AHS Annual Forum, Montreal, Canada, April 29 - May 1, 2008.
The ABC Rotor – A Historical Perspective, Robert K. Burgess. Presented at the 60th AHS Annual Forum, Baltimore, MD, June, 2004

Pretty sure they won't have anything specific on this, but you never know...

 

[Arjen]

Old Sikorsky logo?

 

[Michel Van]

Old Sikorsky logo?

yes, a very old one

If this Model is a Bronco OV successor, it's not from Rockwell they had different logo in 1970s

 

[overscan (PaulMM)]

Oddly enough that old logo is used on the X-2.

 

[Sherman Tank]

I don't think that's a manufacturer's logo. I think it's a (possibly fictional) squadron insignia.

 

[yasotay]

God I love this forum!

Just to add to the conundrum, didn't Hughes Aircraft also tinker with coaxial?

My bet would have to be Lockheed or Sikorsky.

 

[hesham]

God I love this forum!

Just to add to the conundrum, didn't Hughes Aircraft also tinker with coaxial?

Yes my dear yasotay,

we forget Hughes.

 

[Silencer1]

How about Kamov?
Worldwide known in contra-rotating helicopters ;D

P.S. The aircraft looks awesome, like to see it - a real flying predator, mix of Bronco and Sheyene

 

[circle-5]

And it is mentioned in Aviation Week, January 31st 1977...

Paul, I think you nailed it – I agree with Sikorsky OVX unless proven otherwise. Sorry, there are no other photos. Pity.

 

[yasotay]

And it is mentioned in Aviation Week, January 31st 1977...

Paul, I think you nailed it – I agree with Sikorsky OVX unless proven otherwise. Sorry, there are no other photos. Pity.

Think this is right, but, from the article Paul posted: "...derived from an aircraft type already operational within the Navy at the time." Does this imply North American? Teaming of course is an option.

 

[overscan (PaulMM)]

I don't think that means what you think it does. 'At the time' is future, not current day, so the implication is a modification of one of the other planned new Navy / Marine programs discussed in the article, including for example Type A and Type B V/STOL designs. OVX was in the earliest phase of concept definition at the time of the article.

 

[hesham]

Hi,

now I have a strongly feeling,that was a XV-19 Proposal,only my suggesting ?.

 

[Basil]

God I love this forum!

Just to add to the conundrum, didn't Hughes Aircraft also tinker with coaxial?

My bet would have to be Lockheed or Sikorsky.

Interesting. Never saw a Hughes concept with coaxials. Any additional infos?