Author |
Message |
Topic: Unlimited racing - a new direction? |
hfriedman
Replies: 13
Views: 27793
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Forum: Air Racing - General Posted: Sun Aug 13, 2006 08:16 Subject: Unlimited racing - a new direction? |
Thanks for a really great posting. It deservess to be preserved in some more perminant form. |
Topic: BMW IIIa |
hfriedman
Replies: 3
Views: 9969
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Forum: DB, Junkers, Other German Engines Posted: Tue Mar 28, 2006 17:37 Subject: BMW IIIa |
Here are the particulars of the BMW IIIa six cylinder in line water cooled engine: Figures are in American units unless otherwise indicted.:
PARTICULARS OF THE B.M.W. ENGINES.
TYPE OF MOTOR ... |
Topic: Lousy Lycomings! |
hfriedman
Replies: 9
Views: 14726
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Forum: Recip Engines 1920=> Posted: Wed Mar 15, 2006 18:38 Subject: Lousy Lycomings! |
"A while ago I was speaking to a pilot who has some 4-cylinder Cessna thing, I changed the subject once he told me that ALL piston engined aircraft are air-cooled. I don't think people like that would ... |
Topic: BMW IIIa |
hfriedman
Replies: 3
Views: 9969
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Forum: DB, Junkers, Other German Engines Posted: Wed Feb 15, 2006 18:32 Subject: BMW IIIa |
Thanks for the information. I will give it a try. |
Topic: BMW IIIa |
hfriedman
Replies: 3
Views: 9969
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Forum: DB, Junkers, Other German Engines Posted: Sun Feb 12, 2006 18:32 Subject: BMW IIIa |
NACA Report 135 on this engine cites Report 1350 of the US Army Air Service Engineering Division. Does anyone know whther that is a different report and, if so, how to get acces to it? I am also in ... |
Topic: Detonation and Preignition with BMWIIIa Engines |
hfriedman
Replies: 2
Views: 7820
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Forum: DB, Junkers, Other German Engines Posted: Tue Nov 22, 2005 18:28 Subject: Detonation and Preignition with BMWIIIa Engines |
Thanks Wallan. We had not seen it before. It must have been an extremely efficient engine. It held the world endurance record for awhile and the LJ-6 was touted for its range. |
Topic: Detonation and Preignition with BMWIIIa Engines |
hfriedman
Replies: 2
Views: 7820
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Forum: DB, Junkers, Other German Engines Posted: Mon Nov 21, 2005 18:41 Subject: Detonation and Preignition with BMWIIIa Engines |
We are looking at a series of accidents involving Junker F-134/LJ-6 airplanes with BMW IIIa engines.* The power is given at 185 hp so these may have been derated from their WW I form. At least som ... |
Topic: liquid vs air cooling |
hfriedman
Replies: 12
Views: 10954
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Forum: Technical Discussion Posted: Sun Nov 06, 2005 19:37 Subject: liquid vs air cooling |
jrussell writes "As far as civil aircraft, I will agree unequivocaly" that liquid cooled engines were superior. Once good radial engines became available (1925-27 in the US and considerably earlier i ... |
Topic: great engine reference book |
hfriedman
Replies: 6
Views: 8121
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Forum: Book, Mags, Films, Recordings, Reference Posted: Sat Oct 08, 2005 05:53 Subject: great engine reference book |
Thanks for the information. Somehow the picture of the average dilution worker curling up with a 500 page book doesn't quite fit. Still there must have been a large number of supervisors and middle ... |
Topic: great engine reference book |
hfriedman
Replies: 6
Views: 8121
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Forum: Book, Mags, Films, Recordings, Reference Posted: Tue Oct 04, 2005 13:42 Subject: great engine reference book |
There is a new reprint out: Beaumont, R.A.: Aeronautical Engineering: A Practical Guide for Everyone Connected with the Aircraft Industry.
Can anyone give a quick evaluation? |
Topic: Restricted Throttles on R-1830s |
hfriedman
Replies: 1
Views: 6496
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Forum: Pratt & Whitney Engines Posted: Tue Jul 19, 2005 17:34 Subject: Restricted Throttles on R-1830s |
As the story goes: In the spring of 1941 Lieutenant Commander John S. Thach, skipper of Fighting Three learned that his likely adversary would be the Mitsubishi A6M “Zero” that outperformed the N ... |
Topic: Turbocharging vs. mech stage + exhaust thrust |
hfriedman
Replies: 13
Views: 11835
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Forum: Technical Discussion Posted: Sun Jun 05, 2005 17:20 Subject: Turbocharging vs. mech stage + exhaust thrust |
One of the more notorious (not necessarily truthful) scandals of World War II aviation is the tale of the aborted re-engining of P-38s with Merlins. The story is that after the spectacular success o ... |
Topic: Cooling load R-2800 vs. Bristol Centaurus |
hfriedman
Replies: 3
Views: 5327
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Forum: Technical Discussion Posted: Tue May 17, 2005 17:41 Subject: Cooling load R-2800 vs. Bristol Centaurus |
Were max CHTs set to protect the valves and perhaps other parts from the direct effects of heat or were they set primarily to avoid detonation and pre-ignition? |
Topic: Tom Rutledge and Wright Aeronautical |
hfriedman
Replies: 6
Views: 13208
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Forum: Wright Engines Posted: Wed Mar 09, 2005 18:34 Subject: Tom Rutledge and Wright Aeronautical |
I suppose that you have long since thought of this but The Rutledge Family web page is:
http://www.rootsweb.com/~rutledge/
The email address given for the webmaster is usrutledge@attbi.com
Perhap ... |
Topic: Tom Rutledge and Wright Aeronautical |
hfriedman
Replies: 6
Views: 13208
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Forum: Wright Engines Posted: Tue Mar 08, 2005 17:20 Subject: Tom Rutledge and Wright Aeronautical |
The logic sounds right but does it take a bit of the gloss off the Rutledge legend as recited on the web:
"On May 31, 1927, Charles Lindbergh wrote a new chapter in aviation history by completing t ... |
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