Motor for Alpha f-86

[new2heli]

Don,
I have a F-86 Alfa on order with the 5 blade impeller. Which KV motor would you put into this thing. I don't want to go 4S. Can the Extreme be stretched to fly 6 minutes? I want something impressive on command but I still want at least 5 minutes. What is the top speed of your motors in this jet on 3S-1P?

[The Don]

For top speed:
Wicked EDF Extreme 5400 with Alfa 5 blade, should be about 100 mph, it does suck amps at WOT (around 40) so you will have to use throttle management to get your 5 minutes.

For strong overall performance:
Wicked EDF 4800 with Alfa 5 blade fan. This will be about 90 mph but only pull about 30 amps so will be better for duration.

In either case you need to install a 1.8" exit tailpipe in the Saber. A Pentium 40 is the best choice for ESC as it has low resistance. So it is a tradeoff, speed for time since you are staying on 3S lipo (plus it is hard to stuff a 4S into the Saber).

Hope this helps!

Don

[new2heli]

I went with the Extreme. What material do you use for the tailpipe ext? I'm sure that even with that mod the thrust is still descent on the bottom end?

[The Don]

I went with the Extreme. What material do you use for the tailpipe ext? I'm sure that even with that mod the thrust is still descent on the bottom end?

I use an overhead transparency material. I just go to office max and they will sell it to you by the sheet at the copy machine counter, it is like $.50 a sheet. You will still have good thrust if you make the outlet between 1.8" and 1.9" diameter.

Don

[Spid]

I went with the Extreme. What material do you use for the tailpipe ext? I'm sure that even with that mod the thrust is still descent on the bottom end?

That's what I'm running in my Alfa Mig with the 5 blade and a TP 3S 2200 V2 Extreme. Flies great!

[Gary Hoorn]

new2heli,
Socomon has the Wicked Extreme in his F86. It really hauls! Flight times are about 3 minutes without getting too deep into the lipos but great to fly or watch :)
Gary

[new2heli]

:) Can't wait to put this thing together. It's funny, I fly my Green Sopwith Camel around at about 20mph for 20 minutes and then I'm goin to smoke this thing through the air for 3 or 4! :) :) :) I can't wait!!! :)