140 Parking Brake
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rvaflyer
- Posts: 2
- Joined: Fri Jul 29, 2022 1:47 pm
- Name: B Hebert
- Location: Richmond, Virginia
- Aircraft Type: C-140, COL-3
- Occupation-Interests: Retired, now flying for fun.
- Contact:
140 Parking Brake
I'm hoping that someone out there in the 120-140 community with much deeper knowledge than I can tell me if the parking brake was standard equipment for the 1946 140?
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6643
- Posts: 2443
- 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:
Re: 140 Parking Brake
Yes, but many have been disconnected due to the propensity for locking up just as you're touching down...
John Cooper
www.skyportservices.net
www.skyportservices.net
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6277
- Posts: 234
- Joined: Tue May 01, 2018 7:00 am
- Name: Ray Hunter
- Location: Ann Arbor, MI
- Aircraft Type: C-140
- Occupation-Interests: Retired AF, retired B-17 pilot for Michigan Flight Museum
- Contact:
Re: 140 Parking Brake
Agree. I've always been advised not to use the PB for the same reason.
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2066
- Posts: 600
- Joined: Tue May 01, 2018 7:00 am
- Name: Mac Forbes
- Location: North Carolina
- Aircraft Type: '46 Cessna 140
- Occupation-Interests: Retired - Current 120-140 Assoc. NC Rep.
- Contact:
Re: 140 Parking Brake
I've actually served as a "test pilot" with locked up parking brake. Way back, before converting our 140 to Clevelands, I did use the parking brake on occasion with the old Goodyears. Fortunately, on that landing, the aging Goodyears did "slip" a bit and I held the tail down...but, too bad I wasn't in a formal short landing contest as I would have definitely "won"!
It's a suprise on landing that none of us want to risk. Mine = disconnected ever since.-
rvaflyer
- Posts: 2
- Joined: Fri Jul 29, 2022 1:47 pm
- Name: B Hebert
- Location: Richmond, Virginia
- Aircraft Type: C-140, COL-3
- Occupation-Interests: Retired, now flying for fun.
- Contact:
Re: 140 Parking Brake
Thanks, guys. I appreciate your input.
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V529
- Posts: 591
- 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.
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Re: 140 Parking Brake
Was it std on the 140's. Pretty certain it was. 120's. only some of them.
I removed the whole assembly, cables, clamps etc. Never missed it.
I removed the whole assembly, cables, clamps etc. Never missed it.
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elliotblock
- Posts: 35
- Joined: Fri Oct 25, 2019 4:01 pm
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Re: 140 Parking Brake
On my airplane I left all of the parking brake mechanism parts installed but made them inoperative to preserve originality.
I safetied both of the master cylinder latch mechanisms in the OFF position to prevent any inadvertent operation of the parking brakes "at the source". It worked out rather elegantly... I left the original retraction springs in place and routed some 0.020" safety wire through the spring's coils with each end terminated at the latch mechanism and the screw holding the spring, respectively.
The upshot is you get to keep all of the original-looking hardware and the original push-pull control.
I safetied both of the master cylinder latch mechanisms in the OFF position to prevent any inadvertent operation of the parking brakes "at the source". It worked out rather elegantly... I left the original retraction springs in place and routed some 0.020" safety wire through the spring's coils with each end terminated at the latch mechanism and the screw holding the spring, respectively.
The upshot is you get to keep all of the original-looking hardware and the original push-pull control.
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6643
- Posts: 2443
- 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:
Re: 140 Parking Brake
I always assumed since it's not listed as "Optional" in the parts catalog, that it was standard equipment (for both).
John Cooper
www.skyportservices.net
www.skyportservices.net
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V529
- Posts: 591
- 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:
Re: 140 Parking Brake
Yes..............just not sure.
There was a C-120 at the 2005 Omaha? convention who had a bare bones C-120, wood prop, no electrical system no interior (well........seats) aircraft.
His parking brake was labeled on the instrument panel, but plugged off. I suppose someone could have just taken it out....
Bottom line, not sure.
There was a C-120 at the 2005 Omaha? convention who had a bare bones C-120, wood prop, no electrical system no interior (well........seats) aircraft.
His parking brake was labeled on the instrument panel, but plugged off. I suppose someone could have just taken it out....
Bottom line, not sure.
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scotts97385
- Posts: 29
- Joined: Thu Sep 01, 2022 6:52 am
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Re: 140 Parking Brake
I removed the parking brake on the last Cessna 120 produced, serial number 15075, build date April 18th 1949 just yesterday. I'm sure it came from the factory