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.
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.
my airplane came with a 10 X 8 prop 2 blades. I was tinking of putting a 10 X 7 prop 3 blades! now the question: are 3 blades prop more efficiant than 2 blades prop? more trust? or is it just for scale sake? is there a way to calculate the prop requirement 2 or 3 plades, are there any charts? thanks
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....
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.
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.
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.
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.
Hello, got a 4mm shaft (turnigy Park 480) and this prop, problem is that on one side the prop had 6 mm and on the other 8 mm...6 mm is perfect because the prop adapter got also 6mm..
So my prop adapter is too short that the prop will fit perfect on the shaft...and i think i cant turn it arround so that the 6 mm end is on the 6 mm shaft side...what can i do that the prop fit with the right side ?
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.
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.
Great product, well balanced, strong prop glow or electric flight.
5 comments. Reply..
1 thumbs up!
Excellente hlice utilse sur un bi-moteur DC3 lectrique quip de 2 cyclon 30 (kv 950) et 2 packs 3s3200 turnygy. L'avion pse 3kg800 grammes. Une hlice normale et l'autre pusher tournant en sens inverse. Excellent rendement conseiller!
Good prop for .46 sized 2 strokes. 4 stroke just doesn't have that little bit more RPM to get the best from this prop
1 comment. Reply..
A well made 3 blade propellor, does nicely mounted on my BIG 185 Cessna, it look's right at home screwed on 3715 out runner brushless electric motor. power's very nicley with 2200MAH 14.8V 15c li-po battery & power is there when I need it, plus good to have a spare in the tool box as well.