New beta: 109 rudder trim

[ATAG_Snapper]

Hi everyone,

I was asked by Little_D to post here this Bugtracker link regarding the 1.07 beta's revised rudder trim on the 109's:

http://www.il2bugtracker.com/issues/387

Please have a look, decide, then vote accordingly.

Thanks,

Snapper

[Blackdog_kt]

Short description of the issue, i'm paraphrasing Little_D's explanation from the ATAG forums:

The 109 had ground-adjustable trim for rudder (maybe elevator too? i'm not sure). This way, even though the pilot couldn't adjust them in flight, it was still possible for the ground crew to adjust them for a specific speed.

That speed was usually 400km/h (the speed recommended by the manuals), to give a good medium between cruise and full power, so that pilots wouldn't have to keep pressing their pedals all the way through the mission.

In the sim the 109's rudder is also pre-trimmed. Prior to this patch it was correctly trimmed for 400km/h, but tests revealed that it is now trimmed for 300km/h. This makes it harder to fly properly and is historically inaccurate.

The above is what was found by Little_D's tests.

I don't know if it happens because they actually did change the trim presets for the 109 or it's just a side effect of other changes in the FM, but the bottom line is that the 109 currently flies trimmed for 300km/h instead of 400km/h.

[Al Schlageter]

Originally Posted by Blackdog_kt

The 109 had ground-adjustable trim for rudder (maybe elevator too? i'm not sure). This way, even though the pilot couldn't adjust them in flight, it was still possible for the ground crew to adjust them for a specific speed.

All 109s had ground adjustable trimming tabs on their control surfaces (rudder, elevators, ailerons).

Any quick look at a 3-6 view drawing will show them.
They are the red painted objects in the drawing, http://www.cybermodeler.com/aircraft...rofile02.shtml

[ATAG_Snapper]

Thanks, BD!

[gimpy117]

I'm not convinced those are in flight adjustable tabs, they look like ground adjustable ones, Similar to what many light aircraft have now.

[Blackdog_kt]

Yup, they were ground adjustable and the aircraft was pre-trimmed for a specific speed. What Al pointed out is their existence on ailerons, which i was unsure of.

The bug report itself is about the speed they are pre-trimmed for in the sim: 300km/h instead of 400km/h that the manuals specify.

Hope that clears everything up

[Al Schlageter]

Originally Posted by gimpy117

I'm not convinced those are in flight adjustable tabs, they look like ground adjustable ones, Similar to what many light aircraft have now.

The 109 never had 'in flight' adjustable trim tabs. The only surface that was 'in flight' adjustable was the stab.

[ATAG_Snapper]

Six additional votes in three days. Definitely NOT a priority issue, it would seem.