"ttyymmnn" (ttyymmnn)
08/27/2020 at 12:35 • Filed to: wingspan, Planelopnik
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"ttyymmnn" (ttyymmnn)
08/27/2020 at 12:35 • Filed to: wingspan, Planelopnik | 5
| 7 |
Yesterday, we looked at the
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that were created as Convair conceived their new pressurized 240 airliner, the plane they hoped would challenge the Douglas DC-3 for a share of the postwar commercial airliner market. Once the drawings were done, it was time to build. Culling more photos from the Convair Negatives collection at the San Diego Air and Space Museum, we can take a look at the finished concept of the aircraft, construction of the first Convairliner, NX90849, and early serial production of the 240.
Interestingly, the 240 got its name in a very practical way: two engines, forty passengers. A 240 was also the first private aircraft to be used by a presidential candidate on the campaign trail when Sen. John F. Kennedy flew in one christened Caroline after his young daughter.
The first completed Convair 240, and the first to fly.
Note the placards under each fuselage denoting the customer the aircraft was destined for
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Connecting Flights
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If you enjoy these Aviation History posts, please let me know in the comments. You can find more posts about aviation history, aviators, and aviation oddities at !!!error: Indecipherable SUB-paragraph formatting!!! .
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jminer
> ttyymmnn
08/27/2020 at 12:38 |
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Beautiful pics!
user314
> ttyymmnn
08/27/2020 at 13:15 |
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Gib.
Gib nao.
Love those internally-produced desktop models.
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ttyymmnn
> user314
08/27/2020 at 13:25 |
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I was wondering if that desktop model swiveled on the post. Not sure that nose-down attitude is very encouraging. It does show the plane well, though.
RacinBob
> ttyymmnn
08/27/2020 at 13:27 |
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Interesting blended exhaust and cooling air solution in the wings. No conventional vents behind the engine. Also, one stout main beam to hang the wing off of....
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ttyymmnn
> RacinBob
08/27/2020 at 13:32 |
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I wonder if they didn’t get a little added thrust from that setup.
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RacinBob
> ttyymmnn
08/27/2020 at 13:40 |
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Yes I suppose it would now that I see the scale of the discharges. Given that 70% of the fuel energy is going to heat, it might be significant. Just like the P51 oil coolers. Although to make it work, I think it has to be shaped as a venturi as otherwise I would think you would just get backpressure.
It would be interesting to see she shapes inside and hear from somebody that really understood what was going on. Since the discharge is so small, I think its just a large exhaust pipe with cooling air blended in.
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user314
> ttyymmnn
08/27/2020 at 13:43 |
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I’ve got to rewatch it to be sure, but there’s footage on Wings of Kelly John son swiveling a model just like that of the Blackbird (or I’m misremembering and it’s Jack Northrop doing the same, only it’s a model of the Flying Wing. Memory is a fickle thing...).