flycap93
What turnigy motor on hobbyking is the same as the Eflite 370?
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flycap93
I will be useing it on this plane. http://www.aroundtuitrc.com/f22.html
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rodrigo
Quote:
I will be useing it on this plane. http://www.aroundtuitrc.com/f22.html



the plane that you find suffer a heavy torque roll, not easy to compensate (see it in take off)...maybe is the combination of the little size plane with a big size of the prop
why do you not build other F22?
For me the RCP f22 is excellent.. good handling and performance, easy to built and good looking... lot of info too. Are the best $ 9 I spent for sure.

if you don´t want to buy anything , I recommend this plane
http://rc.tomhe.net/f-22

the planes from Thomas Helberg are really good (beauty and easy to build) and has lot of info too...I built the Mig 29 and Eurofighter, both planes scaled down at 62cm of WS with a microjet v2 motor and 6x4 APC.. they has really good performance with zero torque spin (put 75 or 1005 of throttle and flight straight from my hand)

anyway about your question, any mottor with 1100kv, 2s-3s battery, in weight range from 30 to 60grs.... this mottor sound good
http://hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=2112

I insist that these engines are good for big prop and slow flyers , but parkjets are not good for this size of prop (slow fly, lot of drag and the torque roll effect)
good luck!

tx Futaba 9CAP & 8U
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flycap93
Well I was going to put a 7*6 prop on that motor. So what about that. And yes I am goning to build that other f-22 but until I get the foam I already have this other f-22 built. So I just want to fly it. I just want to know if it will fly decently with that setup with a 7*6 prop. WIll that still have alot of torque with the 7*6 prop? I will in the coming month build the rc.tomhe f-22
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flycap93
Pics of the F-22
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flycap93
Sorry messed post before this one.
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rodrigo
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.... WIll that still have alot of torque with the 7*6 prop? I will in the coming month build the rc.tomhe f-22


I don´t know if the torque could be a problem but i guess it will be significantly less than the original setup.
anyway your the motor /prop combination looks good in thrust terms.

if you want you can use this program to verify the combination
http://www.peakeff.com/GraphKIR.aspx?&v=10.5&kv=1050&io=0.8&rm=0.2&w=40&MinThrust=0&MaxThrust=10000&MinMPH=0&MaxMPH=10000&gws=True&apc=True&all=False&title=Test+Motor

or this
http://adamone.rchomepage.com/calc_motor.htm
good luck!

tx Futaba 9CAP & 8U
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flycap93
Well I can't figure out those programs. But they look very helpfull! But what do you think personally? will it be fine. I am not picky about torque right now. I just want to know if it will hold the plan up without tearing it to shreds.
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rodrigo
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Well I can't figure out those programs. But they look very helpfull! But what do you think personally? will it be fine. I am not picky about torque right now. I just want to know if it will hold the plan up without tearing it to shreds.


tell more about the plane: any idea of weight? .. wing span?
It fly without any doubt but a I can´t tell you how easy or hard will be.... in general the parkjet has short wings (little WS) because that has good roll capability but lower resistance at high torque from bigger prop (my personal theory, nothing scientific!!). Some planes from Thomas Helberg use 7" prop but they have 72cm WS but in general use 6x4 and 2200 kv motors (1800 at 2600 kv range)

I think you should buy a 2200kv (+-) motor similar to GH microjet and use a 6x4 prop because you can reuse in future parkjet... all thome H. parkjets and Scott Lott planes use this combination and fly great, lot of power, speed and acceleration (necessary for stall recovers and abort landings)
if you want a slow flyer in the future you can reuse the lower kv motor but if not I dont recommend this buy.
good luck!

tx Futaba 9CAP & 8U
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flycap93
Ok thanks! Well the plane will weigh about 400grams. and almost 2ft wingspan. When you get the chance can you look on hobbyking for a good motor to use than? Heres the thing. I have credit with hobbyking that I have to use sometime and I want to use it on a motor for this plane.
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flycap93
Alright it is finished. I contacted the maker of this plane and he recommended this motor http://hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=5228 I think I am going to go with this one.
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