panel hole

How to keep the Cessna 170 flying and airworthy.

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panel hole

Postby Buckeyejim » Wed Jun 13, 2018 12:42 pm

My instrument panel in the 170B has a hole about 3/4" in diameter
below the center instrument. Can somebody tell me what that
hole was originally for? Thanks!
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Re: panel hole

Postby n2582d » Wed Jun 13, 2018 4:22 pm

Jim,
Your first post said that you had a 1950 170A. Did you trade that in for a newer 170B? I'm guessing what you are looking at is the hole for the knob on the horizontal directional gyro. See figure 76.
Gyro Panel.jpg
Gary
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Re: panel hole

Postby gfeher » Wed Jun 13, 2018 4:22 pm

What year is your plane? There are differences in the panels by year. If it's slightly below a 3" instrument right in the center of the panel below the glare shield, it's probably the hole for the adjustment knob of an AN DG that was originally in the 3" hole above it. I still have the AN DG in my plane, and that's where the knob is (in a separate hole).

Edit: I see Gary beat me to it. We must have been posting at the same time.
Gene Feher
Argyle (1C3), NY
'52 170B N2315D s/n 20467 C-145-2
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Re: panel hole

Postby Buckeyejim » Thu Jun 14, 2018 12:36 pm

I've got a '50A and a '52B. Getting ready to sell the A. I think they both have that hole.
Apparently it was for an adjustment knob for the DG - thanks.
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Re: panel hole

Postby hilltop170 » Thu Jun 14, 2018 6:27 pm

I have a 1958 C-180A with that same hole. Still have the AN DG that came out of it from the factory that still worked, although it sounded like a coffee grinder.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
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Re: panel hole

Postby Buckeyejim » Sat Jun 16, 2018 4:51 pm

I've found a use for that empty hole. I'm going to fill it
with a picture of Lauren Graham, star of The Gilmore Girls.
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Re: panel hole

Postby hilltop170 » Sun Jun 17, 2018 5:42 pm

Possibly a 1" dia vac gauge could be installed in the hole, or an iPad USB power source.
Last edited by hilltop170 on Tue Jun 19, 2018 7:48 pm, edited 1 time in total.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
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Re: panel hole

Postby gahorn » Mon Jun 18, 2018 12:23 pm

Or a button plug:
Attachments
ButtonPlugs.jpg
ButtonPlugs.jpg (2.89 KiB) Viewed 3950 times
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight.
An originality nut (mostly) for the right reasons. ;)
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Re: panel hole

Postby hilltop170 » Tue Jun 19, 2018 7:46 pm

George- I remember you used to call them Wilkie buttons.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
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Re: panel hole

Postby gahorn » Tue Jun 26, 2018 1:23 pm

hilltop170 wrote:George- I remember you used to call them Wilkie buttons.

Yep...that's what the old timers called them and the term became synonymous. You've got a scary memory. :lol:

wilkiebutton.jpg
wilkiebutton.jpg (6.42 KiB) Viewed 3674 times
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight.
An originality nut (mostly) for the right reasons. ;)
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Re: panel hole

Postby Ryan Smith » Tue Jun 26, 2018 6:23 pm

gahorn wrote:
hilltop170 wrote:George- I remember you used to call them Wilkie buttons.

Yep...that's what the old timers called them and the term became synonymous. You've got a scary memory. :lol:

wilkiebutton.jpg


I never knew them by any other name! I used to tell my students that's what they were called, too.
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