ORIGINAL: okier
Thanks for your reply.
I know all that

As i said ... I would take hit for 52 engine if I could be shure that chinese ASP 52 is comparable with for eg. OS max 52.
I dont want a rocket.. but I'm afraid that this ASP is not so strong. So wondering if ASP 61 will be more close to OS max 52

Thats all I want to know

.. Still searching this info

If I could buy Os max .. I would take 52 for shure!
Didn't see those ASP engines working before
My understanding is that the ASP and Magnum 61 four stroke are the same engine.
This is the performance I get from my Magnum 61 four stroke.
15% nitro fuel.
Master Airscrew 3 blade 10x7 10500 rpm ready to fly
4 lb 12 oz static thrust
Master Airscrew Scimitar 12x6 10000 rpm ready to fly
5 lb 5 oz static thrust