All Out Top Speed

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VIP529
Posts: 16
Joined: Wed Jun 12, 2019 7:20 pm
Name: Victor
Location: Michigan
Aircraft Type: C-120
Occupation-Interests: Work on airplanes until the cows come home..........they're still out!
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Re: All Out Top Speed

Post by VIP529 »

Dunna know, I'll give it a try the next time I go airborne............give me about a week.

You gonna make Branson Larry?
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8452
Posts: 45
Joined: Sat Apr 27, 2019 12:22 am
Name: Larry B
Location: NE Texas
Aircraft Type: 1948 Cessna 140
Occupation-Interests: Retired Automation Engineer, Nothing to do and all day to do it.
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Re: All Out Top Speed

Post by 8452 »

If we make it to Branson it will only be for a short visit, not the entire event. We have a wedding to attend in Hot Spring that weekend.
Larry Bible

Returned to the club after three years away due to life’s changes
1948 Cessna 140, O200A, Ragwing, Custom IFR Panel
1966 Mooney M20F/J
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6898
Posts: 327
Joined: Tue May 01, 2018 7:00 am
Name: Jeff T
Location: IS65 Sandwich IL.
Aircraft Type: 48 140 C90
Occupation-Interests: Auto,Marine&Aviation Repair
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Re: All Out Top Speed

Post by 6898 »

6339 wrote: ↑Mon Jul 01, 2019 11:19 am 1948 C90/7150 McCauley: 105MPH @ 2350 in hot muggy Florida.....What's a MOONEY?? :mrgreen:
Same as ours.
Jeff T 1948 C-140 NC3600V
Past President 120 140 Assoc. 2019-2023
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7836
Posts: 3
Joined: Tue May 01, 2018 7:00 am
Name: Dane Pruitt
Location: KSUZ
Aircraft Type: C120
Occupation-Interests: Airport Manager
Saline County Regional Airport
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Re: All Out Top Speed

Post by 7836 »

I race my C120 in sport air race league and my speeds are 120 mph 2650 rpm 7148 prop at 1500 msl on 95*+ temp. Usually a trapezoid shaped course take winds out of factor.

I won 2016 Airventure Cup race at 131 mph for 200 mile straight line course from Mitchell SD to Faribault MN but I went high 7500 msl and caught good tail wind.

I fly full throttle everywhere only have 2 settings fire wall and idle
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8451
Posts: 83
Joined: Wed Apr 24, 2019 1:20 am
Name: Daniel
Aircraft Type: Formerly a 120
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Re: All Out Top Speed

Post by 8451 »

7836 wrote: ↑Thu Aug 15, 2019 6:30 am I race my C120 in sport air race league and my speeds are 120 mph 2650 rpm 7148 prop at 1500 msl on 95*+ temp. Usually a trapezoid shaped course take winds out of factor.

I won 2016 Airventure Cup race at 131 mph for 200 mile straight line course from Mitchell SD to Faribault MN but I went high 7500 msl and caught good tail wind.

I fly full throttle everywhere only have 2 settings fire wall and idle
What engine do you have?
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8359
Posts: 229
Joined: Tue Nov 27, 2018 10:53 pm
Name: Tamer A
Location: KSNA
Aircraft Type: 1946 C120 O-290-D
Occupation-Interests: Engineer
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Re: All Out Top Speed

Post by 8359 »

140mph is the best I've seen with my O290 and small tires. I have 850s now and I'm lucky to see 130 on a calm day. I've seen ground speeds near 160mph if I can catch a good tail wind.
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6643
Posts: 2444
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
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Re: (OT) All Out Top Speed

Post by 6643 »

8359 wrote: ↑Fri Aug 16, 2019 12:59 pmI've seen ground speeds near 160mph if I can catch a good tail wind.
LOL! I used to fly with a portable boat LORAN. Once I caught a good tail wind and when my ground speed got to about 140 knots the software crashed. The display froze for about 5 minutes and then came back and reported my position about 100 miles away from where I really was. Happened twice. I think this is why they finally shut down the LORAN system... ;)
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8359
Posts: 229
Joined: Tue Nov 27, 2018 10:53 pm
Name: Tamer A
Location: KSNA
Aircraft Type: 1946 C120 O-290-D
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Re: (OT) All Out Top Speed

Post by 8359 »

6643 wrote: ↑Fri Aug 16, 2019 1:05 pm
8359 wrote: ↑Fri Aug 16, 2019 12:59 pmI've seen ground speeds near 160mph if I can catch a good tail wind.
LOL! I used to fly with a portable boat LORAN. Once I caught a good tail wind and when my ground speed got to about 140 knots the software crashed. The display froze for about 5 minutes and then came back and reported my position about 100 miles away from where I really was. Happened twice. I think this is why they finally shut down the LORAN system... ;)
That is hilarious and scary at the same time. Not sure how anyone ever trusted that as a viable mode of navigation :lol:
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6643
Posts: 2444
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
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Re: (OT) All Out Top Speed

Post by 6643 »

8359 wrote: ↑Fri Aug 16, 2019 2:42 pmNot sure how anyone ever trusted that as a viable mode of navigation :lol:
Well, in fairness, I don't blame the LORAN system. After all, very few boats can approach 140 kts...
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8353
Posts: 25
Joined: Thu Nov 15, 2018 9:17 pm
Name: Kevin I
Location: Central Texas!
Aircraft Type: 1946 C-140
Occupation-Interests: DoD contractor test engineer for the US Army Cargo Helicopter Program Manager's Office. Avionics and data transfer wizard, retired CH-47 Instructor Pilot. CFII Airplane and Helicopter
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Re: All Out Top Speed

Post by 8353 »

120 MPH indicated at 2500 MSL on a warm day...

At 6500 MSL in the desert with 80F OAT 100KTAS...
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