The M2K don't have auto-trim at all?

[LJQCN101]

Just a quote which may reveal a good deal of information regarding the real plane. The aircraft he flew was a M2000D.

 

What I remember, is the day I flew on M2000 I had to trim the a/c as I asked my pilot to have no AP mode behind. Most of the time, they are flying with the AP in a sort of attitude mode in standby as soon as you depress the palette behind the stick, and auto trim in attitude when you briefly release the pressure ...

 

There is no auto-trim (at all, even not in pitch in comparison to F-16 which is trimmed at 1G hands off) out of any AP mode.

 

Only case is when the AP is engaged in a mode called CWS (Control Wheel Steering). Similar to the ATT mode on F-16, this mode is maintaining the commanded attitude when the palette is not pressed (if roll is <10°, AP put the wings level automatically just like in F-16). When pilot hold the palette depressed, AP is switched to standby and pilot has the full authority of a/c until he release it again. When palette is released briefly, a/c is then auto trimmed for the current attitude/speed.

 

So ... when a bomb is released asymmetrically:

If M2000 is out of any AP mode => unbalance exist, a/c is not trimmed automatically and will roll to the heavy wing.

If M2000 is under CWS mode with the palette depressed => AP is in STBY status a/c is not trimmed automatically and will roll to the heavy wing.

If M2000 is under CWS mode with the palette not pressed (hand off) => AP is in attitude mode active, a/c is will be almost instantaneously trimmed automatically for the current attitude and should maintain (or go back to) the commanded attitude.

 

In practice, pilots keeps the palette pressed during bomb drop, and just after bomb release, briefly release the pressure on the palette to trim the a/c back in asymmetric configuration ... or ... use the trim hat to trim it manually.

 

 

 

BTW this was his footage: https://youtu.be/V1VKOXNbcDI

Edited December 30, 2015 by LJQCN101