Maurice Dyer Posted August 16, 2022 Share Posted August 16, 2022 Hi all. Building one from Sarik plan and semi kit. Original was powered by a Merco 61 two stroke. I want to use a four stroke but what size ??. I have O.S. 56, 52 and 70 surpass engines. Which do people reckon. Model is allegedly about 7 to 9 pounds weight. ?? Maury Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted August 16, 2022 Share Posted August 16, 2022 My Se5a is that size with an OS .61 4 stroke ( really old ) which is perfect maybe the .70 is a bit overkill . Quote Link to comment Share on other sites More sharing options...
Jon H Posted August 16, 2022 Share Posted August 16, 2022 I test flew one of these that a club mate built and it was fine on the 50 class 4 stroke it had. It was a bit porky, but the wings clearly work very well as it flew without any trouble. I would shoot for 7lbs though as 9 seems crazy for a model that size. Quote Link to comment Share on other sites More sharing options...
Maurice Dyer Posted August 16, 2022 Author Share Posted August 16, 2022 Thanks all. Jon, the weight is as qouted.not what I'm aiming at. 1 Quote Link to comment Share on other sites More sharing options...
Jon H Posted August 16, 2022 Share Posted August 16, 2022 My Nieuport is 52 inch and just shy of 6lbs so i would expect 7 to be no problem Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.