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O.S Max-I - 29

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O.S Max-I - 29

Type Model: Glow STD
Engine Size: 4.84cc
Company: O.S MAX
Year of Manufacture: 1954
Article Analysis by: AeroModeller June 1957

Details:

Publisher:O.S Max
Designer:R.H.-Warring
Publishing Year:1954
Edition:Japanese
Keywords:O.S-Engines, O.S-Reviews
Rating:0.00 (0Vote(s))
File size:1.3 MB
File Type:PDF Word
File Quality:Clear
Added by:hlsat
File:O.S Max-I - 29
Link to URL:https://flyinghlsat.com/details.php?publication_id=12540
After a Run of the smaller sizes of engines to come up against a really potent 5 c.c. job for test can be a little shattering and in this category the O.S. 29 rates with the best both for power and noise output. Frankly it would be invidious to attempt criticism of design workmanship or performance. It is a first class engine in every respect even if a bit of a brute to handle.

Mainly these latter remarks are concerned with starting characteristics. The test engine needed flooding through the exhaust port to get any signs of life and a sharp flick over even on the larger sizes of propellers. The kick back is really vicious and the compression ratio and compression seal good enough for any diesel. As regards piston cylinder fit m fact it puts many a contemporary American glow motor to shame. The Japs some-where along the line have acquired a lot of know how on model engine design and construction and whilst following American general technique have added a few ideas of their own to good effect.......

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