RickH Posted February 13, 2021 Share Posted February 13, 2021 I have a PAP Tinox Atom80 with MY20 engine. Advertised thrust with 130cm prop is 55kgs @ 9800RPM. I've measured mine at 44kg @ 9500RPM. Has anyone measured the thrust on their Atom80? 35hrs on my motor, correct run in procedure, correct fuel/oil mix 66:1 ( 1.5% ). My engine has registered a max RPM of 9530 so far, ( not getting max 9800 ). I can't imagine 300RPM making a great difference in thrust ( 9800 instead of 9530 ) The supplied instruction manual was last updated September 2018, it does not have any information re: the new carb with high speed tuning jet. I fly from sea level, is it possible the high speed jet needs adjusting from factory setting? Quote Link to comment Share on other sites More sharing options...
Bob27 Posted February 15, 2021 Share Posted February 15, 2021 What elevation are you at? I am at 4500 feet elevation and our thrust tests are coming back as roughly 30% lower than what we get at sea level. Quote Link to comment Share on other sites More sharing options...
RickH Posted February 16, 2021 Author Share Posted February 16, 2021 (edited) I fly from sea level, what size and brand prop you using? I am running the supplied Helix 130cm carbon prop. Edited February 16, 2021 by RickH Quote Link to comment Share on other sites More sharing options...
Bob27 Posted February 17, 2021 Share Posted February 17, 2021 I am also using a 130 helix. Quote Link to comment Share on other sites More sharing options...
poz Posted February 18, 2021 Share Posted February 18, 2021 (edited) How have you measured your thrust? I'm asking as I have the same PPG as you, except I'm using an Eprop. I can measure my thrust, but not sure of the accurate way to do it Edited February 18, 2021 by poz Quote Link to comment Share on other sites More sharing options...
Bob27 Posted February 18, 2021 Share Posted February 18, 2021 A buddy of mine has a thrust tester that you fasten the frame to. Quote Link to comment Share on other sites More sharing options...
AndyB Posted February 18, 2021 Share Posted February 18, 2021 I tested mine by standing with machine on my back and a set scales between my hands and the wall of the house. 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.