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Acro wot engine size.

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William Dunlop23/10/2019 20:08:35
39 forum posts
2 photos

Has anyone fitted an Evo 15cc petrol engine to an Acro Wot. and if so what was the resulting combination like to fly?

I have a spare Evo 15cc and any suggestions about a model for it appreciated. Possibly an Ugly Stik or similar?

Nothing complicated to assemble as I am thinking of a winter model.


Don Fry23/10/2019 21:24:59
4557 forum posts
54 photos

Go like a rocket. Will the recommended prop clear the ground?

Peter Atkins24/10/2019 21:34:51
40 forum posts

Fitted the 15cc Evo into my Acro last year after my Satio 82 kept dead sticking on me, which is another story that turned out to be a Spectrum receiver going into fail safe. I had the Evo 20cc in a Hanger 9 ME109 and was really impressed with this engine, easy to operate and was very quiet. I thought I would give the 15cc a go in the Acrowot.

I had to make a battery box behind the wing in the bottom of the fuselage to get the CofG correct.

The engine is a great match for the model, the model seems heavy, but I have not weighed mine but it fly’s superbly BUT very noisy on the standard silencer. When I go flying there are 2 models that are always in then car. A knackered old rag eared wot 4 and the Acrowot.

This year I fitted an old 2 stroke tuned pipe that I used to have fitted to an old 60 glow engine and what a transformation. Power is up unlimited verticals, but I try and fly smoothly no 3d stuff and noise is down and the prop clears the ground ok.

I would recommend giving it a go, I’m sure I have some pictures so will try and down load at the weekend if I get a chance.


PS. Do not believe what they say about petrol being cleaner it is covered in a black gunk after each flight, but I am still on a running in mix.

William Dunlop01/11/2019 07:59:56
39 forum posts
2 photos

Thanks very much for the info, I have been on holiday with no internet access so apologies for the late reply.


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