wuzak
Captain
The R-2800 was ~66% wider than the Merlin and ~25% taller and maybe about 500lb heavier.
An R-2800 in a Mustang would look odd.
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what would have happened had you stuck the pratt and whintey from the corsair in the mustang
Thank God the AAF chose the Model 4.
Well, having just read drgondog's book on the P51, the understanding I got was that the major drag negated was the radiator and oil cooler inside the scoop as well as the profile drag of the scoop itself. That means that nearly all the cooling drag of the entire powerplant was cancelled, which is HUGE. On most airplanes engine cooling represents 35-45% of total airframe drag. The only exception on the Mustang was the supercharger intercooler, which had it's own separate duct independent of the scoop. Forcing air through a heat exchanger matrix at high speed requires a lot of energy, which was recouped in the form of thrust generated by the heated air being ejected from the carefully shaped plenum. The temperature controlled variable orifice "nozzle" that maximized the thrust effect could be viewed as the great grandaddy of today's variable geometry afterburner "tailfeathers".My understanding was that the Meredeth effect merely negated the drag created by the scoop. No scoop, no Meredith effect, no difference.
Well, having just read drgondog's book on the P51, the understanding I got was that the major drag negated was the radiator and oil cooler inside the scoop as well as the profile drag of the scoop itself. That means that nearly all the cooling drag of the entire powerplant was cancelled, which is HUGE. On most airplanes engine cooling represents 35-45% of total airframe drag. The only exception on the Mustang was the supercharger intercooler, which had it's own separate duct independent of the scoop.
i know how to do this have the usaf adopt the f4u but supercharge the r 2800 and instead of the .50s install 6x20mm cannon perfect to use as a intercepor in both the eto and pto
Pilot visibility mainly.Why?
It looks to me they have both been designed to fit a big cannon firing through the propeller, when two cowl and two wing 0.50" HMGs would have enough for most tasks, and the cannon it did end up with wasn't that great anyway.
I believe the Model 3 was designed around a proposed or imaginary 25mm cannon.
If such a cannon existed, would not 2 in the wings plus the cowl MGs be more than enough firepower?
That's not what my infallibleI though the intercooler radiator was with the engine radiator in the scoop, the oil cooler having its own duct.
That's not what my infalliblememory says, but I've got the book handy and will look it up tomorrow. According to the arrangement drawing, the intercooler is between the two stages of the supercharger, and it seems unlikely that they would duct it all the way down to the scoop plenum and back again. In any case, does it make a difference? Oil cooler and intercooler are both relatively minor compared to the glycol radiator which carries off the vast majority of the engine heat and will generate the most drag.
i know how to do this have the usaf adopt the f4u but supercharge the r 2800 and instead of the .50s install 6x20mm cannon perfect to use as a intercepor in both the eto and pto
then dont fit to the p51 just adopt the f4u and dont bulid the mustsng
What have you got against the Mustang, anyway? By the time you trick out a Corsair to (almost) do the Mustang's job you have a larger, heavier, more expensive, more fuel hungry, P47 wannabe that can't quite do the job.then dont fit to the p51 just adopt the f4u and dont bulid the mustsng
i dont i like the mustang but i perfer the corsairWhat have you got against the Mustang, anyway? By the time you trick out a Corsair to (almost) do the Mustang's job you have a larger, heavier, more expensive, more fuel hungry, P47 wannabe that can't quite do the job.
Sure, it has more rated horsepower, but that horsepower has to drag a larger, heavier airframe around which is less efficient than the Mustang's, and at escort altitudes (25-30,000 feet) its available power advantage has shrunk to near zero, but its airframe hasn't shrunk at all. What have you gained? The Corsair was a great machine in the type of war for which it was designed, but it wasn't the invincible super weapon you imagine.
That's called a B-17...what about the idea of a twin supercharged sbd with refored wings to make it capible of carry 4x1000lb bombs
im not talking about a b-17 im talking about buliding a supercharged dive bomberThat's called a B-17...
Well I liked the F14, but that never changed the fact that when it came to an up close knife fight, the F15 would usually come out on top. My preferences couldn't change that.i dont i like the mustang but i perfer the corsair
The SBD could already deliver 2,250 pounds to it's target. Why try and turbosupercharge it?im not talking about a b-17 im talking about buliding a supercharged dive bomber