Author Topic: My latest mod  (Read 318 times)

Offline HomeBoy

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My latest mod
« on: August 12, 2008, 10:15:49 PM »
I'm always experimenting with new controller configurations.  I've kinda been obsessed with ways to do better trim for a while now and this latest mod is really exciting.

I've always liked the location of the elevator trim wheel but never really liked any of the ideas I've had or seen about rudder trim.  I discovered that a pot fits nicely just under the three buttons on the PT and if you choose the right knob, it fits very nicely between the pointer and middle fingers.  Even though it looks a little goofy in this picture, you can't see it at all from the front but your fingers fit very naturally around the center indicator.  I flew with this for a couple of hours and had absolutely no trouble finding the knob by feel and centering it or adjusting it.



The other exciting discovery is the Vishay Spectrol 248249 pot.  This thing is extremely smooth and has well over 190 degrees of throw.  I love this pot so much that I replaced my elevator trim pot with it as well.  It is very fluid and spot on accurate.  I found it at www.mouser.com for $5.87.

Now, if I can just find a good aileron trim location I'll be all set.

Hope you enjoy!
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Offline Ghastly

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Re: My latest mod
« Reply #1 on: August 13, 2008, 07:27:28 AM »
Looks nice!

Don't you find that the trim adjustment delay in AH makes using an analog control for adjusting trim extremely difficult?

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Offline NHawk

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Re: My latest mod
« Reply #2 on: August 13, 2008, 07:38:29 AM »
Looks nice!

Don't you find that the trim adjustment delay in AH makes using an analog control for adjusting trim extremely difficult?

<S>
Amazing!

Homeboy and I were just talking about that on the phone last Sunday!

I use analog for trim and have noticed the same thing. It's not a huge delay, but there is one.

My theory is the current pots that are used make such a large change that AH takes some time to catch up. We've sort of teamed up and are working on some solutions.
« Last Edit: August 13, 2008, 07:42:17 AM by NHawk »
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Offline HomeBoy

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Re: My latest mod
« Reply #3 on: August 13, 2008, 11:31:12 AM »
Looks nice!

Don't you find that the trim adjustment delay in AH makes using an analog control for adjusting trim extremely difficult?

<S>

Yes, the delay is very irritating.  I've been using analog trim in AH for a couple of years now so it doesn't bother me nearly as much as it first did.   I've never been able to figure out if HT puts that delay in there for "realism" (though I would argue that the trim tabs on a WW2 aircraft are cable driven, not hydraulic so there should be no delay).  I suspect NHawk's explanation is more on target though.  MSFS does not have any such delay.  I can't speak for IL2 since I didn't have analog trim back when I used to play that.

There are a couple of things that make it much less irritating. 

First, adjust the trim by feel and don't look at the trim indicators.  I found I was turning the wheel and looking at the indicator and would turn it too much.  I think the plane actually responds to the trim much faster than the indicator shows.  By not looking at it you don't tend to overcorrect.    Just turn the wheel until the plane stays where you want it.  In a short time, you learn how much to turn the wheel and it gets even easier.

Second, you must choose pots that have a lot of travel.  These Vishay pots are really great. I get well over 180 degrees of throw and I also scale them to be less responsive around the center.  Gives me pin-point control.

Here is my scaling for elevator trim:


Just like everything else though, the key is practice.  It took me several weeks for analog trim to become natural (though from RL flying and radio control I already was comfortable with the concept of trim) and now I don't even realize I'm doing it.  Once I got comfortable with it, I don't even use AP that much as I can trim out just about as fast.  Nice thing with that is I don't have to worry about kicking out of AP when I roll over to check what's below me.  My plane settles right out after I roll back upright.
« Last Edit: August 13, 2008, 11:47:08 AM by HomeBoy »
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