Here is a comparison between the two power systems I have been experimenting with. The Orbit 20-18 seems to have plenty of
power for this airframe. And I have saved 4.3 ounces (124 grams)
Electrical Components Weight in ounces Weight in grams
Thunder Power 3300mAh 5 cell Pro Lite V-2 20C 13.8 393
Plettenberg Orbit 25-14 9.7 274
_____ ____
Total weight 23.5 667
Thunder Power 2700mAh 5 cell G6 Pro Lite 25C 10.8 306
Pettenberg Orbit 20-18 8.4 237
_____ _____
Total Weight 19.2 543
Weight savings 4.3 ounces 124 grams
I'm using an APC pusher 13" 6.5 pitch prop, with level lap speeds of 5.2 to 5.4 seconds, on 64 foot eye to eye .018 lines
My flight time is 5min 45 sec., rpm around 9300, and power consumption is about 1900mAh out of the battery.
So I've saved an additional 4.3 ounces. Very happy with the model. It flies extraordinarily well.
Corners are so crisp that my brain has a hard time filling in the images of the turn between horizontal and vertical.
( yeah, I know, its my brain, not the airplane)