Compass "window" size

Ask Questions and Offer Advice Related to the Cessna 120 & 140 Type
Forum rules
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
Post Reply
8383
Posts: 14
Joined: Sun Jan 20, 2019 2:46 am
Name: Jim B
Aircraft Type:
Occupation-Interests:
Contact:
Contact 8383

Compass "window" size

Post by 8383 »

Can anyone please send me the dimensions of the compass window on the instrument panel? I have a panel that needs repairing back to original (full size instrument back to standard compass) so it would be nice to have the original sizes. I have attached the style of panel that I need the dimensions for.
Attachments
140-instrument-panel-DYK774.jpg
140-instrument-panel-DYK774.jpg (175.45 KiB) Viewed 4914 times
Top
User avatar
6643
Posts: 2522
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:
Contact 6643

Re: Compass "window" size

Post by 6643 »

I have a NOS older style (120) panel at the hangar. It appears to have the same window. I'll try to get out there and measure it for you this weekend.
panel shot.jpg
panel shot.jpg (75.36 KiB) Viewed 4896 times
Top
6298
Posts: 247
Joined: Tue May 01, 2018 7:00 am
Name: Randy Thompson
Location: California
Aircraft Type: Cessna 140
Occupation-Interests: Work on airplanes and engines
Contact:
Contact 6298

Re: Compass "window" size

Post by 6298 »

I have a 47 like the above picture, and an earlier model like Johns. The 47 is rectangular and measures 1.385 x .877 inches. The earlier panel is 1.536 x .90 and has a 1.25 inch radius left and right. I was curious and my planes were close by..
Randy Thompson A&P IA Pilot
Hold STC SA547EA for installation of O-200 engine in Cessna 120/140 and 140A"s
Overhaul small Continentals
Top
User avatar
6643
Posts: 2522
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:
Contact 6643

Re: Compass "window" size

Post by 6643 »

Thanks! And, yeah, I was looking at the two photos and noticed it looks like the early panel is round on the vertical edges.
Top
4004
Posts: 249
Joined: Tue May 01, 2018 7:00 am
Name: Edd
Location: KFGU TN
Aircraft Type: 140
Occupation-Interests: Retired
Contact:
Contact 4004

Re: Compass "window" size

Post by 4004 »

Randy, you forgot to include: ambient temperature, barometric pressure, and relative humidity at the time measurements were taken! :lol:

Edd
Top
8383
Posts: 14
Joined: Sun Jan 20, 2019 2:46 am
Name: Jim B
Aircraft Type:
Occupation-Interests:
Contact:
Contact 8383

Re: Compass "window" size

Post by 8383 »

Thanks for the fast responses guys, time to go make some repairs!

Thank you.

Jim B
Top
V529
Posts: 612
Joined: Tue May 01, 2018 7:00 am
Name: Victor G
Location: Michigan
Aircraft Type: C-120
Occupation-Interests: Work on airplanes till the cows come home..........they're still out.
Contact:
Contact V529

Re: Compass "window" size

Post by V529 »

6643 wrote: ↑Sat Mar 02, 2019 8:22 am I have a NOS older style (120) panel at the hangar. It appears to have the same window. I'll try to get out there and measure it for you this weekend.

panel shot.jpg

MAN! look at those Yoke covers!! I'll bet you "know a guy" who can find those. ;)
Top
User avatar
6643
Posts: 2522
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:
Contact 6643

Re: Compass "window" size

Post by 6643 »

529 wrote: ↑Thu Mar 07, 2019 8:49 pm MAN! look at those Yoke covers!! I'll bet you "know a guy" who can find those. ;)
Well, now that you mention it... ;)
Top
Post Reply

Return to “Technical Discussion”