Author Topic: Keep trim even after losing elevators  (Read 407 times)

Offline Krusty

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Keep trim even after losing elevators
« on: February 29, 2008, 10:18:51 AM »
On the 109 (and the 262, by the way) the entire horizontal stabilizers were shifted up or down to trim them out. This is how they could pull out of high speed dives after the elevators stopped responding.

The hinge point was right in front of the elevators, and the front had a mechanism that shifted the leading edge up or down based on what the pilot trimmed it to in the cockpit.


I'm not saying it happens often, but if you were to lose your elevators in a 109, you should retain trim capability for the pitch axis.


Like I said, it doesn't happen often, but it's a wishlist item I've had for a while.

I don't know of many craft that did it this way. Messerschmitt seems to be the only one that did this.

Offline Xasthur

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Keep trim even after losing elevators
« Reply #1 on: February 29, 2008, 10:45:35 AM »
Are you sure about the 109?

I know the 262 had an adjustable horizontal tail surface but I didn't think the 109 did.
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Offline Krusty

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Keep trim even after losing elevators
« Reply #2 on: February 29, 2008, 11:11:39 AM »
It does. That's why you have the hole in either side of the leading edge of the V-stab, where the H-stabs go in. That's where the trim mechanism is. There is also a high/low degree mark in front of this on the V-stab.

I've seen references to it as well. Diagrams, details, etc.

Offline hitech

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Keep trim even after losing elevators
« Reply #3 on: February 29, 2008, 04:30:50 PM »
We just happen to jam the trim pulley when the elevator breaks.

Offline moot

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Keep trim even after losing elevators
« Reply #4 on: February 29, 2008, 04:44:01 PM »
No unfair advantage? :p
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