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| 1920 Lycoming marine engine |
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Message |
    
jacbtbldr
Member
Username: jacbtbldr
Post Number: 6
Registered: 08-2009
| | Posted on Thursday, July 13, 2017 - 07:53 pm: | 
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I am a 78 year old woodenboat builder....mostly RC models and a few full size boats. I have a set of plans for John L. Hacker's "Slippery" stepped hydroplane which was designed for the Lycoming 4 cylinder marine engine. Can anyone give me the weight, horsepower, and torque rating for this engine?....many thanks!....John Campbell (my cell no. is 254-493-8493 |
bruce
Senior Member
Username: bruce
Post Number: 606
Registered: 07-2002
| | Posted on Thursday, July 13, 2017 - 09:22 pm: |
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John, The Model 4-80 is designated as UACS It's suited for the 135 CI Hydroplane class. Rated 80 HP at 4600 RPM. It weighs 405 pounds. THe Model 4-58 is designated as UAE and displaces 134 CI, It weighs 460 pounds. THe UAE rated at 58 HP at 3400 RPM. THe model UAB is rated at 40 HP. Sorry I don't have the displacement on the UAB but I'd approximate it similar to the UAE but turning at slower RPM> The UAB is the same engine the smaller ( 16-18 ft) Dodge Boats ran in the 1930's- fairly common survivor .I have no torque ratings on these engines
Where can I see plans for Hackers "Slippery"? Jim Barrys's book "Hacker" has a picture of Hacker's 135 CI class "Riptide". |
jacbtbldr
Member
Username: jacbtbldr
Post Number: 7
Registered: 08-2009
| | Posted on Monday, July 24, 2017 - 04:58 pm: |
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Bruce, call me at 254-493-8493......John Campbell |
jacbtbldr
Member
Username: jacbtbldr
Post Number: 8
Registered: 08-2009
| | Posted on Tuesday, July 25, 2017 - 08:26 am: |
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Bruce, I can no longer find the site for the Slippery plans .....I think there's a broken link involved....but I will email you the Zip file for them if you'll send me an email at [email protected] Also....somebody posted a reply to my initial thread on this forum about there being a 40 and 45 hp Lycoming back in 1920's....that reply is gone....would like to have it back.... |
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