Freewing 90mm F-22 Raptor - Official Thread

**Evan D** · Dec 31, 2018, 02:15 PM

I've flow three different packs in my 6S. RT 5800 35C for 3:45 to 3.8v per cell. Hobby Star 5200 50C for 4 minutes and Hobby Star 8000 100C for 6 minutes but it usually comes down at 3.75V per cell.

**fhhuber** · Dec 31, 2018, 02:17 PM

Originally posted by wolpertinger

Have a question for the collective knowledge base out there. My F22 is 6 cell and I have 2 batteries to choose from in my inventory. Roaring Top 6250 35C; Gens Ace 6200 60C. The 6200 Gens Ace is heavier but would like to run the 6250 Roaring Top due to weight and flight times but worried about the "C" rating.

Your suggestions?

I ran a 12S 5000+ watt (melted down AstroFlight 12S 100 amp wattmeter) on 5000 mah 25C packs for years.

Higher C would have given a marginal power increase.
For a long time, 25C was the best you could get.
If you do the math on the high C ratings vs the current rating of the wires on the packs, a lot of the wires would act as fuses before you hit the current the battery is "rated" to deliver. 35C for a 6250 mah pack means they say it can deliver 218 amps... If they mean it it should have # 2/0 Gauge wires. (Heavier than common arc welding cable)

**JETGREASER** · Dec 31, 2018, 02:18 PM

Originally posted by JETGREASER

Avanti 80mm - Nose Gear
F-16 90mm - Main Wheel
F-16 90mm - Landing Light

You will have to open the fork just a little for the F-16 wheel to fit on the Avanti Nose Gear.
You will have to cut the F-16 Landing Light Clip right up to the Light Mounting Post so it will clear inside when retracted. Both are very easy to do

CORRECTION:

F-15 90mm - Landing Light

**Pheonix** · Dec 31, 2018, 02:22 PM

e4dragongunner. I have this CG machine. Did you use to balance your plane? I am at this point now. Thanks.

**crxmanpat** · Dec 31, 2018, 02:37 PM

Originally posted by Twowingtj

What kind of flight times were you getting with the 6250 packs Pat? I picked up some RT 3S 3300mah packs for a bird and got no better flight times than I did with 3S Tgy 2650mh packs. I was a bit underwhelmed, so am reluctant to try RT 6S 6250 if flight times are not better than Admiral 5000mah packs.

I was getting 3:30 with about 25% left afterwards, enough for a go-around or two if needed.

**wolpertinger** · Dec 31, 2018, 03:02 PM

Thanks for the information on the battery packs. After reading some posts looks like the BEC needs replacing.

**Hardway** · Dec 31, 2018, 03:58 PM

:Drinks::Party:

Originally posted by purduephigam

Great question. This didn't even cross my mind. Oh well, easy mini project if I ever find myself twiddling my thumbs. Might actually spray the main gear lights a little to dampen the amount of light output.

I just used Tamiya XF-12 and some post it notes and a soft brush... Took 5 minutes start to finish... :Cool:

**urrl** · Dec 31, 2018, 04:11 PM

Morning F-22 flight with HRB 6000 mAh

**Pogo** · Dec 31, 2018, 05:04 PM

Originally posted by downwindleg

Wow Tom, you've knocked it out of the park once again. Looks like allot of work. Looking forward to the video.
Brad

Thanks Brad- I don't know about the park thing but they work (on the bench) so that's good- we'll see how the flying part goes in the spring! I shall, however, be doing extensive wind-tunnel testing, as I did with the A-10 canopy. (Let 'er have it with my 200 mph leaf bower! :Cool:)
Have a good New Years!
Tom

**TiredIronGRB** · Dec 31, 2018, 05:40 PM

Originally posted by wolpertinger

Have a question for the collective knowledge base out there. My F22 is 6 cell and I have 2 batteries to choose from in my inventory. Roaring Top 6250 35C; Gens Ace 6200 60C. The 6200 Gens Ace is heavier but would like to run the 6250 Roaring Top due to weight and flight times but worried about the "C" rating.

Your suggestions?

The RT 6250 35C does great unless you fly wide open all the time:Cool:

**ursli75** · Jan 1, 2019, 02:51 AM