Author |
Message |
Topic: Turbocharging vs. mech stage + exhaust thrust |
sithomas
Replies: 13
Views: 11832
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Forum: Technical Discussion Posted: Mon Jul 08, 2024 13:14 Subject: Turbocharging vs. mech stage + exhaust thrust |
Only 19 years late, but for those in Canada (and likely many other countries except the US) the report can be found here:
https://hdl.handle.net/2027/mdp.39015024198973
A VPN may prove beneficial. ... |
Topic: "Engines-The Search for Power"/John Day (Hamlyn, 1 |
sithomas
Replies: 3
Views: 5143
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Forum: Book, Mags, Films, Recordings, Reference Posted: Mon Feb 12, 2024 13:49 Subject: "Engines-The Search for Power"/John Day (Hamlyn, 1 |
Direct from the book:
"It was eventually succeeded by the Napier Sabre, whose design by F.B. Halford began in the mid-1930s with a planned power output of 2,000 hp (1,492 kW). Eventually this 24 ... |
Topic: Cosmos Mercury - Valves per Cylinder? |
sithomas
Replies: 3
Views: 1581
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Forum: British Engines Posted: Wed Jan 31, 2024 20:33 Subject: Cosmos Mercury - Valves per Cylinder? |
That is excellent! Thank you. |
Topic: Info on German WWII piston aero-engines. |
sithomas
Replies: 3
Views: 9302
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Forum: DB, Junkers, Other German Engines Posted: Sun Dec 17, 2023 18:07 Subject: Info on German WWII piston aero-engines. |
There is some good information on DB and Junkers motors buried in this Museum library.
https://muzeumlotnictwa.pl/digitalizacja/index.php?/category/40 |
Topic: Seeking Wright Engine Specifications |
sithomas
Replies: 5
Views: 2080
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Forum: Wright Engines Posted: Tue May 09, 2023 19:38 Subject: Seeking Wright Engine Specifications |
From Curtiss-Wright document "Trouble Shooting for Optimum Performance" Page 7
https://i.ibb.co/0Yp8ZLP/TC.jpg[/img] |
Topic: Lockland Investigation - Arthur Nutt Papers |
sithomas
Replies: 1
Views: 795
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Forum: Wright Engines Posted: Tue Mar 14, 2023 11:28 Subject: Lockland Investigation - Arthur Nutt Papers |
I found an interesting document at the NASM in Arthur Nutt's personal papers, which are available here:
https://edan.si.edu/slideshow/viewer/?eadrefid=NASM.1987.0115_ref265
It was interesting to ... |
Topic: Bristol Cherub |
sithomas
Replies: 2
Views: 1240
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Forum: British Engines Posted: Tue Mar 14, 2023 10:42 Subject: Bristol Cherub |
Looking back, you are correct about the valve drive mechanism. "Unorthodox" would be more appropriate rather than "complicated".
Do any other aero engines use torsion drive for ... |
Topic: Bristol Cherub |
sithomas
Replies: 2
Views: 1240
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Forum: British Engines Posted: Sun Mar 12, 2023 14:14 Subject: Bristol Cherub |
Thanks for the article on the Bristol Cherub. Seems fitting that Bristol would make such a complicated valve drive mechanism!
I am still trying to figure out how it works. From what I can figure fr ... |
Topic: Looking for a Bristol Perseus |
sithomas
Replies: 0
Views: 922
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Forum: Wants Posted: Fri Aug 12, 2022 12:35 Subject: Looking for a Bristol Perseus |
I know this is impossible, however if anyone knows of a Bristol Perseus looking for a new home then please contact me.
Condition and completeness are not important, I'd even love individual parts.
A ... |
Topic: Seeking Wright Engine Specifications |
sithomas
Replies: 5
Views: 2080
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Forum: Wright Engines Posted: Wed Jul 06, 2022 17:59 Subject: Seeking Wright Engine Specifications |
I found that many US Navy aeroplane manuals have good engine information.
Some details and the performance curve for the CB18A / R-3350-35A is in here:
https://www.avialogs.com/aircraft-l/lockheed ... |
Topic: What was the Most Important development in Piston Aero Engin |
sithomas
Replies: 8
Views: 2807
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Forum: Non-Technical Discussion Posted: Thu Jun 16, 2022 21:03 Subject: What was the Most Important development in Piston Aero Engin |
In addition to the good suggestions above, I would add
a) Reduction gear, particularly the Farman type
b) main bearings with indium
c) dual plug cylinders
d) oil improvements over time
e) dampers ... |
Topic: What book is this page from? Bristol Centarus Sleeve layout |
sithomas
Replies: 4
Views: 2382
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Forum: Book, Mags, Films, Recordings, Reference Posted: Mon May 30, 2022 10:46 Subject: What book is this page from? Bristol Centarus Sleeve layout |
If anyone is interested, this figure isn't in the 5th edition.
I found a 4th edition and it is now on its way. The 4th edition isn't cheap! I am not looking forward to explaining to SWMBO why I nee ... |
Topic: Cosmos Mercury - Valves per Cylinder? |
sithomas
Replies: 3
Views: 1581
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Forum: British Engines Posted: Mon Apr 18, 2022 11:58 Subject: Cosmos Mercury - Valves per Cylinder? |
How many valves per cylinder did the Cosmos Mercury have?
Wiki states two ( https://en.wikipedia.org/wiki/Cosmos_Mercury )
Flight July 3, 1919 page 871 states three. ( https://web.archive.org/web/ ... |
Topic: What book is this page from? Bristol Centarus Sleeve layout |
sithomas
Replies: 4
Views: 2382
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Forum: Book, Mags, Films, Recordings, Reference Posted: Thu Jan 27, 2022 20:57 Subject: What book is this page from? Bristol Centarus Sleeve layout |
Thank you!
I haven't bought an engine book for weeks - time to right that wrong. |
Topic: What book is this page from? Bristol Centarus Sleeve layout |
sithomas
Replies: 4
Views: 2382
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Forum: Book, Mags, Films, Recordings, Reference Posted: Thu Jan 27, 2022 09:54 Subject: What book is this page from? Bristol Centarus Sleeve layout |
I am hoping someone can tell me what book this page is from:
https://live.staticflickr.com/65535/51845259672_17b0b0faf5_c.jpg
I found it on the Home Model Engine Machinist forum, but my attempts t ... |
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