ORIGINAL: craigteffe
ORIGINAL: Truckracer
ORIGINAL: Antique
Lets get real here....Must be numbers from ThrustHp...No 18-6 prop on the planet will give you 26 lbs thrust at 9300 rpm...18 lbs MAYBE....26 is closer to G62 numbers, IMPOSSIBLE to attain with a small engine, piped or not...
I will pay $1000 US dollars to anyone who can send me ANY 30cc class model airplane engine that will show 26lbs static thrust, measured with a scale on the tail wheel of my Phaeton 90 bipe.....Pipe or not...
Anyone ????
Ya know Antique (that would be RC for those who don's know) I posted my comments about my first impressions from actually running this engine in an airplane back on post # 1157. I thought that might stir up some discussion about this engine but the comments have been few at best. I stated that my engine turns a Xoar 18-6 at 8600 RPM the first day out and that the engine out performs my several year old Saito 180. The performance level of the SAP 180 meets my expectations.
From there, and after flying the engine several times since then,
I think that Todd has the basis of a really great engine but it isn't quite where it should be yet. And .... I'll leave it at that. If serious modelers want to take the discussion further, I'm here to comment.
Frankly, this thread has turned into so much social babble .... very little discussion of Todd's engine.
So what are the short falls that you see with this engine?
Are you still using the 18X6 prop?
I have one on order and would like your thoughts. Todd told me that my engine would be shipped out today or Monday, I will wait and see if he delivers on his word.
I agree that these threads are becoming too social, I get these emails and updates just to see people talking about nothing to do with the engines. Its like these guys are just trying to get thier post numbers up.
Start other threads called social banter that way we don't have to look at all the crud.
Ok , just for the fun of it I put the 18-6 prop in a prop power calculator. These are not exact but do come in close enough for a baseline. The 18-6 Vess @ 9300 rpms will produce 21.21 lbs static thrust. No its not 26 but its pretty good for the size engine.
Andy