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Apr 29, 2001, 12:55 AM
Registered User

Pitch speed of B-2 props


Hello all, I was wondering what the pitch speed is on the Wattage B-2 props. I am designing a twin pusher jet with a small wingspan but high lift wings. I don't plan on flying slow but not blazing fast either. Faster than the B-2 but slower than say 25-30 mph. Wingspan will be around 18-20 inches and weight should be around 5-6 ounces.
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Apr 30, 2001, 03:02 AM
Our Daddy and Heli Junkie
Fred Bronk's Avatar
It doesn't say on the pack I have, but I remember someone saying it is around 2 or 2.5.

That sounds about right as the motors spin them at 30K.
Apr 30, 2001, 03:16 PM
310mph Kolibri T25 Swist
henke's Avatar
I just test flew my "Sidewinder" flying wing




flyes quite fast, lots of indoor fun!! handels realy good outside to! about 2min flight time...

my next wing vill have a greater back sweep and larger area!

60g (2,1oz)
630mm spw

1xB-2motor
2x2,3g servo
2,3g Rx
0.9g ESC
7x100nimh (6x120nicd on the pics, 80g)

/Henke

Apr 30, 2001, 11:32 PM
Registered User
Ok guys, well heres the secret project I am working on. An Me-262 pusher prop jet with the motors mounted on the engine nacelles on the wings. Span is 22" and made from blue foam. I want to make sure the motors and props can fly it fast enough to stay airborn and have good performance. Using a Feather RX with a 7 cell 100mah nimh battery pack and jeti controller with Cs-10 and Hs-55 servos. Controls are ailerons and elevator along with throttle of course. Will be nice to do straffing runs down the street and pull up to go attack a squadron of enemy birds flying overhead. I have already done a slope scale version of this and it works good but I need to make sure the electric will work also.
May 01, 2001, 02:57 AM
310mph Kolibri T25 Swist
henke's Avatar
I'am also running with the 100 nicds...on only one motor, itīs quite fast the first 30sek then it seems like the nimhs does't deliver enough power... same problem with 120mah nicd (but they are old...)

my diealer said the max current of the 100nimh is 1A and apsolutly no more

my next project will be a twin EDF with 2xB-2motors, using 8x110nicd or 120nicd, if the finnished plane stays under 170g it would be a killer

keep going David!!!

/Henke