MattyB Posted April 14, 2017 Share Posted April 14, 2017 We ran up Dad's new toy in his garden this afternoon, a Roto 85 FSI inline twin with my daughter on the sticks - sorry for the wobbly camera work, she was quite excited as you can hear...! After just over an hour of total running it is hitting ~5700 rpm on 25x10 Fiela prop, making a calculated 5.7hp. It throttles like a dream with no overheating problems on the bench - it even runs nicely on one cylinder if you cut power to one of the ignition units! Obviously the challenge will be keeping it cool in the cowl of the Topflite P-51 it's destined for, but we think that is achieveable, With other ongoing projects though it is unlikely to maiden this year. Edited By MattyB on 14/04/2017 22:23:41 Quote Link to comment Share on other sites More sharing options...
cymaz Posted April 15, 2017 Share Posted April 15, 2017 She's one happy bunny ! Quote Link to comment Share on other sites More sharing options...
.. Posted April 15, 2017 Share Posted April 15, 2017 lol indeed as she says "pretty cool" Mat. My young lad and myself were in a similar position on Thursday taking advantage of most of the neighbors being at work & running in an OS 120 Surpass. The Roto looks & sounds great. Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted April 15, 2017 Share Posted April 15, 2017 Great commentary, engine sounds good too Quote Link to comment Share on other sites More sharing options...
Rich too Posted April 15, 2017 Share Posted April 15, 2017 That sounds great Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted April 15, 2017 Share Posted April 15, 2017 Great stuff, Matty. Looks and sounds like a great piece of kit. Thanks for sharing the clip with us. Quote Link to comment Share on other sites More sharing options...
cymaz Posted April 25, 2020 Share Posted April 25, 2020 Marty how’s the Roto holding up? I’m thinking of getting one for a future build. Quote Link to comment Share on other sites More sharing options...
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