What is First engine altitude throttle on the Focker D7F?

[WM_KMS]

And what controls it, the higher I go the more % it shows and eventually I can't use my throttle to reduce altitude without overspeeding the engine

[ZachariasX]

It is another lever (and another axis that you should map on your throttle) that opens the throttle past a setting that gives it maximum rated power at low altitude. This means, you can open altitude throtte only to compensate for the thinner air as you climb. Throttling back on the regular throttle will reduce power as it usually does and like that you will not abuse (by overstressing) your engine. Essentially, you can leave altitude throttle full open and just progress the throttle only until you hear bad sounds from the engine. Only at 1000 m or so (not sure about the critical altitude) you can open throttle fully without overtaxing the engine then.

[J2_Jakob]

At roughly every 500m of altitude you can open the altitude throttle by 1/3, while running full "regular" throttle.

500m = 1/3

1000m = 2/3
1500m and above = full

 

Keep an eye on the fuel... If you run both fully open for longer time, it will mean higher consumption.
If you want to reduce altitude quickly without overstressing the engine, throttle down before the dive and use side-slip during the dive if needed. Just watch the RPM needle and don't let it hang at 1600.

Edited January 21, 2021 by J2_Jakob

[WM_KMS]

10 hours ago, J2_Jakob said:

At roughly every 500m of altitude you can open the altitude throttle by 1/3, while running full "regular" throttle.

500m = 1/3

1000m = 2/3
1500m and above = full

 

Keep an eye on the fuel... If you run both fully open for longer time, it will mean higher consumption.
If you want to reduce altitude quickly without overstressing the engine, throttle down before the dive and use side-slip during the dive if needed. Just watch the RPM needle and don't let it hang at 1600.

That's the problem though, the altitude throttle increases by itself probably because I have engine management checked. When it gets to 100% my throttle no longer works, I can't reduce my throttle or the altitude throttle, I looked in settings for altitude throttle but couldn't find it

 

[Cynic_Al]

35 minutes ago, WM_KMS said:

That's the problem though, the altitude throttle increases by itself probably because I have engine management checked. When it gets to 100% my throttle no longer works, I can't reduce my throttle or the altitude throttle, I looked in settings for altitude throttle but couldn't find it

 

 

Have you by chance assigned throttle and altitude throttle to the same slider/buttons?  They have to be assigned to separate controls.

[WM_KMS]

5 minutes ago, Cynic_Al said:

 

Have you by chance assigned throttle and altitude throttle to the same slider/buttons?  They have to be assigned to separate controls.

No but I found the setting for altitude throttle, thanks for your help!!