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Main => Builders Discussions => Topic started by: Radar on December 28, 2009, 10:19:32 AM

Title: B737-800 fuel cutoff command
Post by: Radar on December 28, 2009, 10:19:32 AM
 ;DHi yall!
  I'm having a little bit of a hard time figuring out how to add a B737-800 fuel cutoff command. I have a home made trottle that has working fuel cutoff levers. Any ideas.

<img src="http://www.mycockpit.org/photopost/data/586/medium/Mike_s_home_made_737ng_TQ0061.jpg" />

Thanks
Mike
Merry-xmas
Title: Re: B737-800 fuel cutoff command
Post by: ian@737ng.co.uk on December 28, 2009, 03:27:48 PM
hi mike..........
when you say working fuel levers, i assume you have a microswitch attached to them.  i can't get your photo to load i'm afraid so i cant take a peek.
here's how i do it........ levers/microswitches hooked to a bodnar card.   FSUIPC identify's them.   selecting for FS Control, in the dropdown menu, i use the Offset Byte Set option.  this lets you set the value of the parameter in that offset.   for eng1 i use offset 3590 and for eng2 it's 3594.   then in the parameter box, it's 1 for on (idle) and 0 for off (cutoff).
just use the 'for button pressed' for one parameter and 'when button released' for the other dependant on how the microswitch operates.
(https://www.cockpitbuilders.com/proxy.php?request=http%3A%2F%2Fwww.737ng.co.uk%2Ffsuipc_offsets.jpg&hash=7c4350866f35e9201ef1ee48dee89c593d0f04af)
if you are using one of the 'upmarket' avionics packages like PM or Sim Avionics, just check that the
offsets in there for the fuel valves are the same, if not then just substitute your offset for mine.  mine will work with most stock and add on aircraft
hope that helps you out captain.....have a great day
regards ... ian
Title: Re: B737-800 fuel cutoff command
Post by: Trevor Hale on December 28, 2009, 11:19:10 PM
Fantastic explanation Ian, Great stuff.

Trev
Title: Re: B737-800 fuel cutoff command
Post by: Radar on December 29, 2009, 12:21:16 AM
 ;DWow!! Great info Ian.

My daily routine is to visite your site. Your work is just fantastic.
Thank you very much. I'll give it a try.

Mike
Merry-xmas
Title: Re: B737-800 fuel cutoff command
Post by: ian@737ng.co.uk on December 29, 2009, 01:01:59 AM
 ;D   ;D   ;D   very happy to have been of service.......
and just wait till you see what the next 'hair brained scheme' is   ;D   
have a great day chaps.......
regards ... ian
Title: Re: B737-800 fuel cutoff command
Post by: Trevor Hale on December 29, 2009, 01:36:48 AM
Wow..  Radar, your throttle looks amazing..

Trev
Title: Re: B737-800 fuel cutoff command
Post by: Boeing Skunk Works on December 29, 2009, 02:30:29 AM
You can also use 'mixture rich' and 'mixture lean' FSUIPC commands for fuel flow for a turbine aircraft.

Good looking work.
Title: Re: B737-800 fuel cutoff command
Post by: Radar on December 30, 2009, 01:15:28 PM
 :D Thanks Trevor and Mike

  I does what I want it to do until I can get a fully motorized one.