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Posted

Has anyone found a RAM air switch/lever?

The use of RAM is mentioned in the charts.

 

Additionally, has anyone compared indicated airspeed in cockpit, against the ground speed, as shown in F10?

I had a look today, and at 2000ft, the difference seemed quite large.  My guess is the conversion of knots to mph and also wind.

7800x3d, 5080, 64GB, PCIE5 SSD - Oculus Pro - Moza (AB9), Virpil (Alpha, CM3, CM1 and CM2), WW (TOP and CP), TM (MFDs, Pendular Rudder), Tek Creations (F18 panel), Total Controls (Apache MFD), Jetseat 

Posted

Ram had to do with air flow to the carburetor:

image.jpeg

Ram air was the same as Direct. Alternate took heated air from the engine cowling.

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Posted
10 hours ago, felixx75 said:

In fact, our two tables differ if you look closely. For example, I have 2700 RPM @20k ft.

I've found the manual with your chart and to add more confusion, mine comes from a later revision.

This is from your chart: Corsair Manual.pdf

image.pngnull

This is from mine: F4U-1D Real Manual.pdf

image.png

 This sentence also could be the hint that  higher MAP could technically be achieved, but shouldn't.

image.png

That would also explain 61" during my tests and would mean that MAP simulation is at least good enough.

 

My new guess as to why our charts differ is perhaps this is a safety issue. No two airframes are the same and after a while they decided to increase the safety margin.

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