F4U-1 Vs. F4U-1A

[gyrene81]

Yes, but the title of the thread is F4U-1 Vs. F4U-1A.

that is true sir. however, i direct you to the question that focused on whether water injection was indeed necessary...

is water injection necessary for war emergency power?

looking more deeply at the reports, it appears that in regards to the f4u-1, there was no war emergency power setting on the throttle. the measured/tested power ratings were simply normal and full military. and in the flight test report of july 28, 1944 the f4u-1 equipped with a p&w r-2800-8 the plane achieved its fastest tas at 19,000 ft with low blower under normal power. i find that odd.

the f4u-1a must have been the initial model that included the water injection system to attain war emergency power.

[Saxman]

the f4u-1a must have been the initial model that included the water injection system to attain war emergency power.

Which has been noted frequently in the forums. Including in this thread. By me. 

[Getback]

Yes, but the title of the thread is F4U-1 Vs. F4U-1A.

I think I should have said Comparing.

[gyrene81]

Which has been noted frequently in the forums. Including in this thread. By me. 

         

[jeep00]

I prefer the performance of the -1 over the -1a mainly for the flaps out hovercraft ability of it. But when it wants to flop over it will with much impunity. I presume the -1a to be the better bnz of the two but don't do really use that well myself. The -1seems to attract a crowd as well and it doesn't escape that like the -1a.

[Getback]

I prefer the performance of the -1 over the -1a mainly for the flaps out hovercraft ability of it. But when it wants to flop over it will with much impunity. I presume the -1a to be the better bnz of the two but don't do really use that well myself. The -1seems to attract a crowd as well and it doesn't escape that like the -1a.

Once slow it builds speed so much slower than the 1a. Best resign yourself to a fight instead of thinking escape.

[Saxman]

Once slow it builds speed so much slower than the 1a. Best resign yourself to a fight instead of thinking escape.

Yeah, the -1 is near the bottom of the heap as far as acceleration and sustained climb go. The 1A is probably about middle of the pack.

The exception is if you've got some air underneath you. Dive acceleration in all models is superb.

[Getback]

Yeah, the -1 is near the bottom of the heap as far as acceleration and sustained climb go. The 1A is probably about middle of the pack.

The exception is if you've got some air underneath you. Dive acceleration in all models is superb.

The -1 one will hang a bit when you're trying to force the nose over which makes for a nice target.

[J.A.W.]

H-series P-51s did in fact utilize ADI - to get the little V-1650 to pump out 2,200+ hp @ 90in boost, but  P-38s didn't have the space/strength to pack it.

The R-2800s really needed it, due to being air-cooled lazy-bones radials,
which could not hack the liquid cooled mills power/capacity ratios, without cooking/fading rapidly..

Or being hugely thirsty gas hogs, by using excessively rich fuel settings as
defacto coolant..