Cockpitbuilders.com

CockpitBuilders.com - Main => General Discussion Board. => Topic started by: kattz on January 22, 2021, 07:15:42 PM

Title: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on January 22, 2021, 07:15:42 PM
Please, I need some accurate measurements from someone with a real shell or who can access a real shell.  Getting ready to weld steel next weekend and can only afford to do this ONCE.

Please provide the following three measurements:

With the columns vertical, what is the distance from the fwd edge of the columns to the first vertical surface of the heel slides?

If you can adjust the rudder pedals fully aft towards the crew seat, with the rudder centered, what is the distance from the rear edge of the bottom of the pedal to the vertical columns?

With the pedals in this position and adjusted fully aft towards the crew seat, what is the height from the bottom of the pedal to the heel slide?

Please see attached worksheet.

This is critical to my build.  If anyone can help, I would sincerely appreciate it.

PS Markus' measurements in his PDF are not acccurate enough.  No input conditions.

Thanks!
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: Trevor Hale on January 23, 2021, 11:33:16 AM
This has been answered before..  But you could check this..

https://www.markuspilot.com/download/BOEING%20737%20MEASUREMENTS.pdf
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on January 23, 2021, 12:21:43 PM
Trevor, thanks for that info.

I have that document.  It's not accurate in the aspects that I'm asking about.

Thanks.
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: Garys on January 23, 2021, 05:51:47 PM
I can probably get you the measurements later in the week but I don't know if I will be able to put hydraulics on which will change the centre position of the yoke. (Alot of our aircraft are in storage and heaven forbid years from now we have a repeat of a pompous self entitled drunk member who feels the need to point out the blatantly obvious)
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on January 23, 2021, 08:33:20 PM
Not sure who the drunk guy was, but I really appreciate that offer.

I have an idea about this.  I looked at some photos of stripped NG cockpits.

I have the columns mounted, and the driving factor is where the rudder pedal covers go and the rudder pedals go under them.

So I dug out of my bin o' crap the seals for the columns that screw onto the floor.  The pedal covers butt against the cutout edge of the seal ring.

If I know where the columns are, and where the pedal covers go in relation to that, then I need to rig the pedals for the correct height and ensure that they are in a position where when adjusted fully fwd or fully aft, there is no interference between the pedals and the arc cut into the covers.

Going to rig it up during this week.  Got some 3/8" cardboard that will hold screws and I can tape/screw it up without breaking out the saw.

Thanks, Gary.
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: FredK on January 24, 2021, 05:53:09 AM
Gary...a thought.....

Have you considered visiting a commercial 737 simulator?

For example.....There is a 737 flight simulator that was decommissioned and moved to the Delta Flight Museum at KATL. You can fly it for an extra fee.

I visited there a few years back and started a conversation with the guy who was on station operating it.  Once I mentioned I had a 737 cockpit in my basement it was like we were reunited long lost friends.  We got to discussing all things 737, and he invited me in to look around and even let me fly it for free.  I took some quick measurements for my side wall panels which I was fabricating at the time.

My point is that you have a lot invested to this point, you appear to be a perfectionist, and you are only going to weld one time.  So it might be worth a trip there or somewhere closer to where you are located. You need to determine accessibility restrictions due to COVID of course.

Perhaps someone here with a real 737 cockpit could help on this??

Just a thought.

Fred K
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on January 24, 2021, 09:45:07 AM
That's a good idea, Fred.  Unfortunately, my wife's health will not allow me to get away for a few days.  But I appreciate it!
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: Karl737 on January 24, 2021, 01:39:20 PM
Hi Kevin,

I own a real NG flight deck (ex Austrian Airlines OE-LNL) and can get you those measurements tomorrow.

Regards,
Karl
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on January 24, 2021, 02:10:37 PM
Thanks, Karl, much appreciated!

I sent you a PM.

Thank you!
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: kattz on March 26, 2021, 07:29:28 PM
I just wanted to give a huge thanks to Karl for helping me with the dims that I needed to jig up my OEM rudder and brake mechanicals.  This part of my project would have been impossible without his help!

The linkages and quadrant is from a B744 being scrapped at Tupelo, MS.  I have all linkages and bus links for both sides.  Thanks, Tom!

The covers and slides are from a SAS B736 - thanks to Boy Bruin!

This has machined parts not visible and is bolted to really thick, heavy container cardboard.  Never underestimate the power of hot glue...

The quadrant stops and center rig pins are installed for the test rig.  The brake pedal links are staked and zip tied in their upright neutral position to provide reliable accuracy in measurement.

This floor will have a 14" finished height and there will be a 3" "hump" for the quadrant and artificial feel ballscrew/servo just fwd of the FDS shell.
Title: Re: Urgent request for OEM measurement from a real 737 floor
Post by: Karl737 on March 27, 2021, 03:30:49 PM
Hi Kevin,

Your work looks fantastic!

Glad I was able to help 😊

Cheers,
Karl.