I wonder what his CHTs are like…
Operation without Cooling Baffles
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
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GAHorn
- Posts: 21281
- Joined: Fri Apr 12, 2002 8:45 pm
Operation without Cooling Baffles
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'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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Bruce Fenstermacher
- Posts: 10415
- Joined: Tue Apr 23, 2002 11:24 am
Re: Operation without Cooling Baffles
Probably cool considering all the air being pulled over an unrestricted engine front(back), top and bottom. #1 and #2 likely the coolest.
CAUTION - My forum posts may be worth what you paid for them!
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
Bruce Fenstermacher, Past President, TIC170A
Email: brucefenster at gmail.com
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GAHorn
- Posts: 21281
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Operation without Cooling Baffles
I’m thinking that without any baffles at all…the intercylinder temps must get pretty warm with no updraft or downdraft occurring.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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Joe Moilanen
- Posts: 605
- Joined: Sun Dec 28, 2003 5:45 am
Re: Operation without Cooling Baffles
I’m thinking that the only reason we need down flow air cooling directed by baffles in our planes is because we only have two small inlets in the front of our cowl to let any cool air in. The airboat cylinders are completely surrounded by cool air at all times.
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johneeb
- Posts: 1542
- Joined: Thu Jun 26, 2003 2:44 am
Re: Operation without Cooling Baffles
Is that engine a "Glades Cat" O-300?
John E. Barrett
aka. Johneb
Sent from my "Cray Super Computer"
aka. Johneb
Sent from my "Cray Super Computer"
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GAHorn
- Posts: 21281
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Operation without Cooling Baffles
I had sent a query to the owner…and here’s his reply:
“ 2009 Scorpion hull 12’ x 7’ riveted 6061-T6.
The engine is a Continental O-470 from early 1960’s off a Beech Debonair. Propeller is a 72” Whirlwind Whisper Tip turning 2850 RPM. CHT’s are about 375*F. MA4-5 carb.
5” bore, 4” stroke. 7:1 compression. Burns pump regular. Straight 50W AV oil.
Timed-out engine when I bought it in 2009. Still chugging along. When America built stuff that lasted. It should run a few more decades. lol”
“ 2009 Scorpion hull 12’ x 7’ riveted 6061-T6.
The engine is a Continental O-470 from early 1960’s off a Beech Debonair. Propeller is a 72” Whirlwind Whisper Tip turning 2850 RPM. CHT’s are about 375*F. MA4-5 carb.
5” bore, 4” stroke. 7:1 compression. Burns pump regular. Straight 50W AV oil.
Timed-out engine when I bought it in 2009. Still chugging along. When America built stuff that lasted. It should run a few more decades. lol”
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.