Even under Part 107 (specifically Part 107.51(a)), your ground speed can't be more than 100 mph, but it doesn't say anything about airspeed...100 mph max when fly under the recreational exemption, right? I'm not positive, but I believe you can go faster when flying with a part 107 license.
I stand corrected. Good to know.Even under Part 107 (specifically Part 107.51(a)), your ground speed can't be more than 100 mph, but it doesn't say anything about airspeed...
Well the first rule for using the recreational exemption is “…Fly only for recreational purposes (personal enjoyment)” so if you don’t have a smile on your face while going faster than 100, the fascist (I mean feds), will violate you (I mean fine you).
The power pack c v2 and b v2 use 40A esc’s so it would probably be a good idea to get that esc (the only change with the v2 power packs is the esc).ECalc's predictions for my current setup (66mph 3s, 81mph 4s) match the speeds I measured within a handful of mph.
I've settled on my new motor, a Sunnysky 2212 V3 in the 1400kv flavor. Interestingly enough this motor is actually smaller and lighter (will help with the overly fore CG), and it claims higher power handling capability.
With a 7x10 prop, ECalc estimates 81mph on 3s and 102mph on 4s, while only pulling 37A.
With a 7x12, that estimate jumps to 89mph on 3s and 112mph on 4s, pulling 42A.
I couldn't find any props that size so I'll be cutting some bigger props down. I will be exceeding the current limit of the flitetest 35A ESC, though I think this is a calculated risk. According to ECalc, the PPC/9x9/4s setup was already pulling 36A without issue. I've added external heatsinking to the ESC and it has decent cooling.
View attachment 233466
I'll probably stick to the 7x10 setup for "normal" flying and use the 7x12 for max speed testing only as the predicted static thrust starts to really fall off at higher pitches.