jimweda
Posts: 142
Joined: 7/20/2007
From: North Hollywood,
CA, USA
Status: offline
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It is the 1110/1Y and so far it hasn''t been put in a plane, just static testing on 3s and it sounds like its going to explode but hasn''t. The battery we''re using is the TP 3s-2200 V2 (25c) with a 4.1x4.1 apc prop. We are working on putting it in a Funjet, but personally I don''t know if it will do much good without proping up. I tried a motor similar to the Neu with a 4.5x4 apc pylon prop and although it flew it wasn''t impressive and I''m sure it was because the prop was too small. Anything bigger and it would cut out before I could get to half throttle and that was with a CC80 and Impulse 4s-2500 (25c). With the smaller prop I had to toss it at about 1/3 throttle, fly it around a few laps before I could open it up. I have some things I''m going to try and see if I can make this work. I''m going to have to try out the Mega 16/25/2 and maybe 3T on 4s, 5s and 6s (for 3T). I own 3 Mega 16/15/3 and 1 16/15/2 and they are great and powerful motors but its been a long time coming and I need to move up to much more powerful motors that will make the Funjet melt in the air. Once we get some numbers on the different motors we''re testing out I''ll post them in the forums. I''m going to also get me an Eagle Tree set up. Hopefully it doesn''t get thrashed during the test flights. Thanks for the info on the Mega 16/25/2 and what prop to use. That will be helpful in our testing.
Jim
quote:
ORIGINAL: Gryphon
jimweda
1110/1Y 5000KV or 1110/1D 9200KV? I assume 1110/1Y on 3S.
You said “NEU 1110-1 without destroying my CC80 and TP batteries”.
Please give me full specs on your battery.
What prop do you use, have you had a wattmeter reading?
If you have the resistance value of your motor, I can use that for comparison, the NEU sites does not list them all.
http://www.neumotors.com/20061222/1100_series.html
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I’m glad that you are looking at 480 sized brushless motors to make good power.
The 400 sized motors are o.k. but somewhere after 30A-40A more and more of a case can be made to go with a bigger motor.
For very high flight speeds a very small prop with high pitch speed is not a great combination.
Pitch speed is fine but if the prop cannot make enough thrust to overcome the needed drag at high speed it is all wasted. It is like a race car dragging an open parachute while doing a burn out down the length of the track.
Prop pitch speed = RPM X Pitch /1056 {pitch in inches}
16/25/2 2650KV can spin an APC E 5X5 at 38,000 RPM 81.5A with a full 5S-3300 25C pack.
This prop or 5.25X4.75 should do very well on a funjet.
3700min to 3850+ 25C cells will be best for 4S, or 5S.
Of course smaller cells can be used and motor will be propped accordingly.
For 3S we run 4500 cells, I use 3S-5000.
Later,
Gryphon
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All Forums >> Electric Aircraft Universe >> Electric RC Jets >> RE: FUNJET 
RE: FUNJET - 
I will test the 6S and 4S set ups. Will need to record things and see. I better get me 
