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Happy Holidays to all,
I'm looking for a spring to center encoder(MOM) Center (MOM) for the(B-737) rudder trim knob, any ideas?I was able to locate a rotary switch from Mouser electronics part# 690-E3G0603N-2 , I'm not sure if this is the switch that I'm looking for! :roll:
http://www.mouser.com/Search/Refine.aspx?Ntt=690-E3G0603N-2
Cheers
I don't think that's it. You need a pot, not a switch.
That has two positive stops both sides of center. You need a smooth continuous motion.
Thanks for the info Michael,
I guess I have to make my own pot:p. I have an old joystick with few 10k pots that I can use to make the (MOM) CTR (MOM) encoder. I'll post my results.
I am not too familiar with the rudder trim on the new NG's. Doesn't it use a trim knob just like the 727?
You can still use a continuous-turn encoder, but I didn't think the rudder trim worked the same way as the elevator trim located on the yoke; momentary up/down.
Once the trim knob is turned it stays there until you turn it back. Same with aileron trim.
I still haven't worked on this in my sim and I even have the gear ruduction on the real trim knobs. So much to do and so little time. :roll:
The old B737 had the cable and pulley mechanism, but the NG B737 trim knob works just like the Alirons trim with a switch.
I see. Then it uses a similar momentary set-up just like the elevator trim switch?
I guess you had the right switch after all. Sorry.
Phil
The one to use is a rotary, spring loaded to make it return to center, with two momentary positions left and right of center.
I managed to get two (Janco )
ref 79-2257 9617.
I can probably spare one but they were not exactly cheap! PM me.
Here it is: about one inch max diameter. Aviation grade.
Thx Jack,
Check your PM!:D