Two wind tunnel models to identify

overscan (PaulMM)

overscan (PaulMM)

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Orionblamblam said:
overscan (PaulMM) said:
From https://www.facebook.com/groups/264095303761165/user/100000497307904 posted by Charles Sweigert.

Can anyone identify these two wind tunnel models. The brass one looks like an unmanned, guided rocket carring missles and the second one.......just strange.
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The chubby-cheeked aluminum model is a VTOL design. Seen here:

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Cheers Scott. It looked familiar but I couldn't place it.
 
The missiles and their loadout resemble Missileer designs strongly, and the general body and tail resemble the Republic design philosophy. Did Republic bid for the Missileer spec?
 
overscan (PaulMM) said:
Orionblamblam said:
overscan (PaulMM) said:
From https://www.facebook.com/groups/264095303761165/user/100000497307904 posted by Charles Sweigert.

Can anyone identify these two wind tunnel models. The brass one looks like an unmanned, guided rocket carring missles and the second one.......just strange.
Click to expand...
Click to expand...
The chubby-cheeked aluminum model is a VTOL design. Seen here:

Click to expand...
Cheers Scott. It looked familiar but I couldn't place it.
Click to expand...
It was distinctive. Would be nice to see more photos of that model.
 
Given the loadout of six AAM-N-10 under the wings, I'd agree with Starviking that this comes from the Missileer design studies.
But the lack of a cockpit, engines and intakes is remarkable.

I think this might not represent a particular design, but just a wind tunnel model to further study an effect that was discovered by Vought engineers during the competition (from OR AD-10501, Fleet Air Defense Fighter):
One of the interesting things out of the competition was a Vought entry which had predicted extremely low missile drag as mounted on their airplane based on wind tunnel tests. What it had amounted to in effect was that they ended up with positive interference drag. Usually you can take the drag of a pylon, the drag of a missile, put the two together and you add another hunk of drag to it for interference. In the case of Vought they were showing that the combination of a pylon and the missiles was less than the total of the two individual drags. Our aero guys didn't believe that and it became a big issue. If they had been right they would have been a more serious contender for getting the award than they were. With our performance estimate they were definitely in second place.

Subsequent to the award to Douglas, Vought turned all their drag data over to Douglas.
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CiTrus90 said:
Given the loadout of six AAM-N-10 under the wings, I'd agree with Starviking that this comes from the Missileer design studies.
But the lack of a cockpit, engines and intakes is remarkable.

I think this might not represent a particular design, but just a wind tunnel model to further study an effect that was discovered by Vought engineers during the competition (from OR AD-10501, Fleet Air Defense Fighter):
One of the interesting things out of the competition was a Vought entry which had predicted extremely low missile drag as mounted on their airplane based on wind tunnel tests. What it had amounted to in effect was that they ended up with positive interference drag. Usually you can take the drag of a pylon, the drag of a missile, put the two together and you add another hunk of drag to it for interference. In the case of Vought they were showing that the combination of a pylon and the missiles was less than the total of the two individual drags. Our aero guys didn't believe that and it became a big issue. If they had been right they would have been a more serious contender for getting the award than they were. With our performance estimate they were definitely in second place.

Subsequent to the award to Douglas, Vought turned all their drag data over to Douglas.
Click to expand...
Click to expand...
Further to CiTrus90’s comment - this model fits the basic design as typified in the Vought V-434. If you added the rear-mounted engine pods and the cockpit hump the resemblance would be extremely strong.
 
Now I know what happened to the front nose sections of all of the Grumman A-6's that were retired......
 
Serious question, are these from the Grumman employee model shop closing ?
 

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