Originally Posted by
1967brutus
IF.... IF you go to an 18 x 6, then at least make sure it's either a good woody (I particularly like the ones JustEngines supplies and have a bit of a dislike for for example MenzS), or better, the APC 18 x 6W... That is the one I run.
Mind you, it COULD be necessary to reduce servo-speed a touch on the upstroke of the throttle, due to the larger inertia of the prop: With gasoline, if the throttle opens TOO quick for the acceleration of the engine, mixture temporarily gets out of whack and that can lead to trouble. No biggie, do NOT adjust acceleration problems with the idle mixture, just reduce servo travelling speed to say, 0,5 ~ 0,7 sec, that usually does the trick.
The downside of an 18 x 6 prop is that at idle it functions as a huge airbrake, and you MUST come in on the throttle at landing. My BigLift (the plane in the vid I posted) can maintain a 45 degree dive without exceeding 60 kph at idle, and WILL stall over the runway threshold if I hold idle at landing. I need about 3~3,5K RPM for landing.
If i have to go buy a prop ,i will definitely get a decent wood prop, i have asked a club member for a prop and hopefully he remembers to take a look for one, also another member i know of has a master airscrew prop i will get a lone of that for a test,,
well here goes for the servo slow down! Imy transmitter only has manual function for servo slow down, my 👍 🤣
Call me a mad man! So i went back a level when i had a spektrum dx8 gen1 problem, and wanted to fly and grabbed a dx7s locally and was able to continue flying, but instead of buying replacement brand transmitter/recievers i brought another plane ,, lucky enough transmission has been stable but still a thought of swapping out spektrum altogether...
i miss having servo delay and throttle curve