Master Airscrew propeller 10x7

 Crawdad 221 points

By cone I assume you're asking about what's called a spinner, Agustin. For what kind of spinner to use, you need one that is either already slotted for 3 blades like the B57spinner-3, or purchase one that doesn't have slots like the HKS3, and cut your own slots to fit. The size needs to be determined by looking at your aircraft and deciding what would look good.

 Crawdad 221 points

You'll need to look at your aircraft to decide what diameter of spinner would look good, Yeu Kwang. For what kind of spinner to use, you need one that is either already slotted for 3 blades like the B57spinner-3, or purchase one that doesn't have slots like the HKS3, and cut your own slots to fit.

 Ek-trician 316 points

Yep, work great!

 beppo 84 points

You can try a 10x7 3 blade, but don't forget to check how many Amps the motor draws, if to much use a 9x7 3 blade. Generally cut the diameter of a 2 blade by one inch and use the same pitch. I never saw comparison charts, guess it's too much different on designer brands. You will find 2 blades more efficient than 3 blades and less efficient as well. It's all up with the motor, the airframe, the design and and and....

 crashexpert 7 points

the reason why i whanted to use a 10 X 7 3 blades is that on a lots of scale they suggess same size less pitch for props when you go from 2 to 3 blades!

 beppo 84 points

You are right crashexpert. My idea is to reduce the diameter and keep on the same pitch. If the motor draws the same Amps as before You will have the same propspeed (=pitch*RPM). Anyway there is no 9x8 threeblade at hobbyking's. Threeblade props are small on offer, that sucks.

 Ek-trician 316 points

I agree, but consider the prop design with the kv and drag. Lots of props pull more air than others. Master Airscrew makes their 3-blades with a thinner blade, so it moves less air than an APC SF 2-Blade (and the E-Prop). I have found most of my motors can take a direct replacement size with these and other wide blade 2-blades. But they are less efficient and will cost you some flight time. As always bench test the plane with a Watt Meter. 3 & 4-Blade props are mostly for scale, or ground clearance.

 crashexpert 7 points

Thanks to both of you, you seems to know your stuff. I'm new at this! I think if you had all the info you could help me even more!
My set-up is: 480 brushless 960kv, 30A pro Esc, 4 servos, running on 2200ma 3s 25C it came from a 1150g bi-plane that crashed during Sandy. I whant to use this set-up in a 880g warbird that require ether a 450 or 480 brusless and 6 servos. I bougth a Turnigy Super Brain 45A-6s Brushless ESC to have room for the extra servos. The warbird kit come's with a 10X8 2 blade, will the 10X7 3 blade be a good choise? Thank you in advance for your help.

 Ek-trician 316 points

That's what I would use, too start, it's pretty safe. I don't know if you will like the performance though? It depends on what kind of prop you are replacing and the strength of your motor. Some 980s will only pull the 10x6x3 MAS prop. Dynam also makes a nice 10x6x3, look at spare parts for Cessna 310. What is the width and length of the motor and how many watts is it rated for? If you know. I have some Optima 3710 980kv motors running well on my P-38 on 4S.

 beppo 84 points

Use prop adapter rings ore get a new prop adapter. You will find it at spinner/adapter.

 gti205er 5 points

Hi, buyed allready a new prop adapter, did you find one at hobbyking ? Because i dont see a Adapter with this dimensions here. Thanks.

 beppo 84 points

Did You look for Produkt ID: JY4.0? Too bad it's on backorder, but I guess this one would work. Go and read the reviews it says the product has been improved and now the shaft is long enough to fit any propeller.

 Speed Demon 81 points

I think its 6mm, but there is pleanty of beef to drill it out if you want to.

 Ek-trician 316 points

It's a 2 step hub, 6mm & 8mm! Good prop, nice and quiet, well balanced , but still check! Happy flying!

 waterlogged 2837 points

I wouldn't advise it. The original prop is an 8x6 and this will probably cause damage to your motor, ESC and possibly even the battery from overheating. Plus it will more than likely flip your plane upside down landing if landing on grass.

 Ek-trician 316 points

This is the 1.5m 182. Comes with a 12x6 I think. This will be a good replacement!

 H-KING_SCOTT 5233 points

I think it will be spot on

 Ek-trician 316 points

What size Donkey motor? Need to know diameter and length as well as kv rating.

 Fly4ever 9 points

Yes, but a 2-bladed is probably more efficient.

 herofromzero 111 points

İ* put it on my kyosho kliped piper cup 1600 cm wing, with asp fs 61 it looks so scale and beatifule

 Ek-trician 316 points

I'm glad you like it, but a J3 Cub has a 2-blade prop? So much for scale... :]