ORIGINAL: mick15
Wow loads of questions!
I used to fly pattern at masters level, had an OS 140 RX 15.5x12APC four blade, great engine in a 2m pattern model called a New Solution, could'nt get on with four strokes.
Havn't weighed the Rhapsody think its about 10.5-11lbs. I flew it today on the 20x11 and whilest it had plenty of vertical it did'nt suit my old flying slyle though it was very windy, I got the impression I needed less diameter and a lot more pitch, flying for 12 minutes I used 4000mah. I don't believe in it's present form I could fly the schedule at the distance I used to fly, I do though accept my flying style will probably have to change to suit electric.
The motor stayed cool as did the batteries, I'll try the 22x12 next time out and see what that does. I have a 16x16 somewhere I may try that could be totally useless we'll see
M
M,
You might want to try the 21x13 APCe mentioned by SC above. It will give you more speed (which is what you are probably used to) and it will still pull like a tractor going up. If you haven't tried it yet, try leaving the throttle alone until you need more speed in the uplines (hard to do) but I think you will be surprised at how much reserve power you have. If you can convince yourself to leave the throttle alone more, you will find your mah usage per flight will begin to drop. Using the 21x13 and the F3A, flying Masters at about 150 meters with reasonable speed you can probably do the sequence at about 3500 mah. Less with more practice.
I use about 3800-4000 mah for the FAI P07 sequence and I don't fly slow or close, takes about 9 to 9.5 minutes.
Woodie