patternflyer1
Posts: 1250
Joined: 7/3/2003
From: Tracy,
CA, USA
Status: offline
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Hey Chuck.
Very glad to hear your looking in the Axi direction. They really do produce a great quality motor.
I know you have alot of choices to make right now and I also know that they aren't easy choices.
One thing I would consider. I notice you say how would it compare to your os with the 17x12. I am also running an os 140rx with either a 17x13 or a 15.5x12 4 blade, so I understand your thinking.
The reason I am went with the F3A motor was, well first off, because I love the axi. Second, because everyone seems to think they won't work. Third, because I want the slower speed of the Hacker or any other electric spinning the big prop (22x12 or 21x13). If the speed of the electric isn't what your looking for then by all means I would recommend a 18 (not that I have run one, don't get me wrong), with a smaller prop. It's a great alternative to get into the electric scene. Now, there are alot of people on the forums that will say alot of things about the Axi's. Take a small handfull seriously. As most have not run them and only go by the figures that their calculations tell them, which are generally not accurate on any motor. There are other alternatives to the thunder power batteries coming out that can handle more amps with ease. Trust me on this. They're not cheap either though. Electrics aren't.
I do think the 18 would be enough for Intermediate and maybe even Advanced. So you may be safe. Ask your self though, if you are planning on sticking with the electrics. As the Axi will last you a long long time and can be transferred from plane to plane, as with any other motor. But when you (and you will ) get into Masters and Fai then you will need the Fai motor anyway. Of course at the great prices that they are at, most can afford to upgrade anyway.
Don't take me wrong here Chuck. I'm not trying to influence you. Just trying to offer some insight as I know the choices are difficult.
If you want to see the power of an 18, talk to Tom. Exfokkerflyer. He may just show you the video of his dads 16 or 17 pnd Yak taking off into a very impressive vertical. Plenty of power.
I would like to say that I wouldn't skimp on the batteries as they are very important. And by the time you have your plane built the new batteries just may be out.
Good luck with your choice and let us know as we are all in this thread for a reason.
As for carbon products, look here http://www.acp-composites.com/acp-lp.htm
Chris
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