Manifold Pressure (Again) R22
I was ask a question recently that really I couldn't answer:
How much does 1 inch of manifold pressure lift?
I later found out that for the R22 (helicopter taken for the example) the answer is 50lb (roughly), but why, and how do you come up with that number?
It's something you have to estrapolate from the OGE or IGE chart, bigger more complex helicopter have this kind of charts already but not small helicopters like robinsons.
Another question was also, how much temperature is 1 inch of manifold pressure equivalent to?
The answer is 20°C and I think, but I'm not sure, if you look at the OGE chart and see how high you can hover at 20°C then drop to 0°C you'll see that you gain 1000 ft which is around 1 inch of MP. "I THINK" this is how it works but if not and someone knows the right answer please jump ahead.
Thank you all!!