Author Topic: For those that trim... (Read 456 times)

Seeker · « **on:** June 17, 2003, 05:21:20 PM »

How many trim in advance?

A newsgroup I lurk in is frequented by a former Jug pilot; and one of the threads turned to dive bombing. This was his standard practise:

Here it is:
In dive-bombing, it was important to have the needle and ball
centered at the moment of bomb release or the bombs would impact
left or right horizontally of the target. Unless the aircraft
was retrimmed, it would be practically impossible to maintain
the proper rudder pressure for this. As I began my dive, I would reach
down and give the knob three twists counterclockwise. This would over
trim the aircraft at that speed, but would be about right on at the
bomb-release speed. One had to retrim after the pullout.

earl

I wonder; does any one do anything like that here?

Udie · « **Reply #1 on:** June 17, 2003, 05:51:52 PM »

Saintaw · « **Reply #2 on:** June 17, 2003, 05:59:12 PM »

Yes, in some planes like the A20, you *have to*. it allows for a much faster nosedown.

Also sometimes fight with the trim set up in the 109. gives you some good whine feedback on ch1

ccvi · « **Reply #3 on:** June 18, 2003, 03:23:25 PM »

I rarely trim rudder or ailerons. Before having to increase speed (e.g. prior to a dive) i trim the nose down a bit.

Ack-Ack · « **Reply #4 on:** June 18, 2003, 03:46:13 PM »

I don't do that for the rudder since you really don't have to trim it in the P-38 but I do sometimes over-trim the elevator for the same reasons Earl did in real life.

ack-ack

sax · « **Reply #5 on:** June 18, 2003, 07:27:32 PM »

eskimo2 · « **Reply #6 on:** June 18, 2003, 07:40:57 PM »

Yes.

Untill just a few months ago I did all trimming manually, and was adjusting trim as often as I scanned views. Recently I gave Combat Trim a try, and now use a little of both. The 109 is trim critical!

eskimo

Udie · « **Reply #7 on:** June 19, 2003, 05:09:07 PM »

Quote

Originally posted by Saintaw
Yes, in some planes like the A20, you *have to*. it allows for a much faster nosedown.

Also sometimes fight with the trim set up in the 109. gives you some good whine feedback on ch1

you haxors!

Ghosth · « **Reply #8 on:** June 19, 2003, 09:57:47 PM »

I mostly use auto trim, but then I seldom fly planes that are overly trim critical.

Exception is in the middle of a fight, if I start feeling the controls get funny I'll turn on CT for about 1 sec, then off again.

While its not perfect its closer than my last autotrim when I was 350 mph.

And its quick & easy.