MC.202 engine sound

[Ypsan]

Could anyone be so kind as to explain me why in macchi engine sound is the same between 1.2 and 1.4 ata when flying in straight line? When I turn off tech chat its impossible for me to know when I enter combat mode unless I look at the instruments. My CH throttle handle moves softly that sometimes I don't even notice I pushed it a bit foreward.

[Riderocket]

Do you have boost enabled?

The specs sheet says;
Unlimited : 2200 RPM @ 1.23 ATA
5 Minutes : 2400 RPM @ 1.35 ATA
1 Minute : 2500 RPM @ 1.42 ATA

Without boost you will always get 2200 RPM no matter what ATA setting you have. (Hence why you hear no sound difference)

With boost enabled you can run unlimited: 2400 RPM @ 1.28 ATA

When I fly the 202, I always leave boost on, but beware, this will use up more fuel

So it should look like;

Unlimited : 2200 RPM @ 1.23 ATA (No Boost)
Unlimited : 2400 RPM @ 1.28 ATA (what I use)
5 Minutes : 2400 RPM @ 1.35 ATA (Combat)
1 Minute : 2500 RPM @ 1.42 ATA (Emergency)

Edit: With no boost you cannot use Emergency Power!

Edited May 11, 2017 by Riderocket

[Ypsan]

I only use boost in combat but I thought without boost increase ata above 1.3 made the difference. The tech chat was confusing me as it would show emergency mode even though I didn't engage boost. Thanks for clarification!