New to PG and PPG, but planning on getting my cert coming Sept/Oct. I come from the drone industry (I design, fabricate, test a wide range of custom drone technologies) and looking to apply that to a custom power train for a PPG system.
Have done a decent amount of research at this point, though it seems relatively limited when it comes to electric, everyone runs gas (gross!) There are some single electric motor systems out there, but $$$$$$$. Then I came across the OpenPPG project and was instantly in love with the design and method.
I will probably design and fabricate my own carbon and accessories (looks like I wouldn’t be able to get an OpenPPG setup until Batch 4 anyways, whenever that would be?) Power train is where I’m looking for input. Sanity checks are good from experienced pilots. I don’t usually strap myself to my creations.
Currently spec’d it out based on a TMotor power train.
- Motor: P80 170kV http://store-en.tmotor.com/goods.php?id=424
- ESC: Alpha 80A HV http://store-en.tmotor.com/goods.php?id=584
- Prop: 26x7.8 2 blade (Would post a link but only allowed 2 as a new user )
- Battery: Bonka 6S 22Ah (on OPPG website)
@12S2P it’d be pushing ~60kg thrust @ ~220A WOT. Compared to a similar spec’d gas setup (Black Hawk 100cc), which pushes ~55kg (I weigh about 170lbs after a trip to the bathroom).
@WOT (220A), the 44Ah lipo would give about 10 minutes flight time (considering 80% rule). I assume this only be required at launch or climbing, and would guess cruise would be about 50% throttle? This would give about 20kg thrust @40A. About 53 minutes of flight. Seems like most are getting closer to 25 minutes flight time, which between launch and climb and cruise, seems reasonable.
Black Hawk weighs about 22kg (before fuel I assume). The above setup, about 15kg (no harness, no frame). So on spec there.
This would run about $2600USD (I’m hoping I can get some discounts since I deal with TMotor, also a Canuck and the conversion will hurt at the moment), which is way cheaper than any RTF electric or gas setup. Add harness, frame, accessories, wing, shouldn’t require me to eat noodles for months.
Also planning on getting a wing I can PG or PPG with, not looking to do acro (yet!).