a reverse thrust q...

[D driver]

Once the blocker doors are fully deployed, with an increase in RPM, which of the following statements would be incorrect?
a. Forward thrust from the hot gases would increase.
b. Forward thrust from the hot gases would decrease.
c. Reverse thrust from the blocked air would increase.
d. TGT will increase.
marked answer B :eek: . I believe it should be a

[eckhard]

Already answered in 'Tech Log' but here it is again:

As Hoppy says:

With blocker doors, only the cold by-pass air is reversed. The hot gases continue to exit rearwards through the central exhaust as they do in 'forward thrust'.

So, once the blocker doors are fully deployed and RPM increases, hot gases exhaust (forward thrust) increases, TGT increases and reverse thrust from the blocked air increases.

So the only incorrect statement is b).
a), c) and d) are correct statements.

[wanabee777]

Bad question.

It depends on the type of reverser or how you define "blocker doors".

https://en.wikipedia.org/wiki/Thrust_reversal

https://en.wikipedia.org/wiki/File:Klm_f100_ph-kle_arp.jpg

[D driver]

tnx eckhard got it:ok: