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Author Topic: Trim Wheels  (Read 377 times)

Offline Joe Lavery

  • I spend way too much on this forum!
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  • Posts: 745
  • 737 Builder
  • First Name: Joseph
  • Home Location: Newport, UK
Trim Wheels
« on: January 06, 2019, 09:33:01 AM »
Hi all,

I'm in the proceress of finishing a new TQ, and I would like to have the trim wheels operational. I can easily get them to run correctly from the three way yoke trim switch, by simply wiring them to a supply that changes the polarity depending on the switch pressed.

What I would prefer to do, is have the switch control the trim itself via FSUIPC, and then have that control the motor but I have no idea how to go about it.

Any thoughts or help would be appreciated.

Joe.
'Life isn't about waiting for the storm to pass, it's about learning to dance in the rain!'

www.pcpilot.net


Offline navymustang

  • Simulation Engineer
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  • Posts: 511
  • Building a 737-800 full scale cockpit
  • First Name: Jim
  • Home Location: KMCO
Re: Trim Wheels
« Reply #1 on: January 06, 2019, 11:49:38 AM »
What software are you using to model the 737?
Building a full scale 737-800 AATD for home use. Majority of hardware is from Sismo Solutions, software is Prosim under P3D. An AOPA member and LifeTime member of National Association of Flight Instructors
Please note that I am a self-employed professional cockpit builder that provides consulting to defense contractors and civilian schools and airlines.

Offline Joe Lavery

  • I spend way too much on this forum!
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  • Posts: 745
  • 737 Builder
  • First Name: Joseph
  • Home Location: Newport, UK
Re: Trim Wheels
« Reply #2 on: January 06, 2019, 12:45:31 PM »
Project Magenta with probably P3D 4.
'Life isn't about waiting for the storm to pass, it's about learning to dance in the rain!'

www.pcpilot.net


Offline navymustang

  • Simulation Engineer
  • I may as well be Staff!
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  • Posts: 511
  • Building a 737-800 full scale cockpit
  • First Name: Jim
  • Home Location: KMCO
Re: Trim Wheels
« Reply #3 on: January 06, 2019, 08:07:11 PM »
Since I am not sure how far you have gotten with PM as your choice, Prosim supports this function natively.
Building a full scale 737-800 AATD for home use. Majority of hardware is from Sismo Solutions, software is Prosim under P3D. An AOPA member and LifeTime member of National Association of Flight Instructors
Please note that I am a self-employed professional cockpit builder that provides consulting to defense contractors and civilian schools and airlines.

Offline FredK

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  • Posts: 527
  • 737NG Cockpit Builder
  • First Name: Fred Kurasiewicz
  • Home Location: Williamsburg, Virginia, USA
Re: Trim Wheels
« Reply #4 on: January 06, 2019, 11:14:57 PM »
Quote
What I would prefer to do, is have the switch control the trim itself via FSUIPC, and then have that control the motor but I have no idea how to go about it.

You will need an input/output board that has a "motor" output function.  I am using the Open Cockpits DC Motor Card with Sim A.

Driving the trim wheels as an output is easy, but implementing the trim wheels for an input (to manually crank trim) is complex and well beyond the scope of a home cockpit builder.

Fred K
Boeing 737NG-800, Prepar3D v4.3, Sim-Avionics, WideView multi-channel (curved screen), Optoma 1080GTDarbee projectors (3), Fly Elise warping, FSGRW weather, FDS OH panels and CDUs, SimParts MIP, FDS SysBoards (OH), CPFlight MCPPro and pedestal panels, FI Gauges, PFC controls, converted motorized TQ (SIOC), Weber seats

Offline Joe Lavery

  • I spend way too much on this forum!
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  • Posts: 745
  • 737 Builder
  • First Name: Joseph
  • Home Location: Newport, UK
Re: Trim Wheels
« Reply #5 on: January 07, 2019, 04:18:15 AM »
Thanks guys,

I've been using PM since 2014 but my Pit has been in storage for nearly three years since we moved house. So everything is setup to use that, also to be honest I couldn't afford the new pricing of ProSim; it seems they are pricing out the home cockpit builders.

Thanks Fred, I think I'll chuck the question over to the Arduino forum, someone there may have a solution; if not it will be cranked manually.  8)

One last though is regarding X-Plane, would it be something that could be done easier with X-Plane 11. I do like X-Plane, which has come on massively over the past two years, that is also a route I could try.

Joe.
« Last Edit: January 07, 2019, 04:32:48 AM by Joe Lavery »
'Life isn't about waiting for the storm to pass, it's about learning to dance in the rain!'

www.pcpilot.net


 

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