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Old Jul 13, 2007, 07:27 AM
Gregg28 is offline
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Discussion

Little Screamers for 17oz Ryan RareBear?


I have a 17 oz Ryan RareBear that I am trying to power. I want it to go really fast, so I ordered an LS Park Jet for it. The numbers look good, but the motor seems awefully small. Will it be enough?
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Old Jul 13, 2007, 07:38 AM
Gregg28 is offline
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Numbers:

2800kv
185 Watts
18.5 Amps
Old Jul 13, 2007, 11:33 AM
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What prop are you going to run with it?? You should be ok, but a double stator motor probably would have been a better choice.
Old Jul 13, 2007, 12:11 PM
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I will be using a Widsor 6x4. I currently have a Weilgard WA2212-06 in it. It is okay, but does not have the speed I am looking for.

http://www.graysonhobby.com/catalog/...roducts_id=398
Old Jul 13, 2007, 12:41 PM
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In a 13oz Wild Wing and using a APC 5.5x4.5E I get great speed (85-95+) and not quite unlimited vertical. The 6x4 is not nearly as fast. Also, that motor can take a 6x5.5 with proper cooling, but my cheap batteries (TrueRC1500s) couldn't supply enough current so my top speed was less with the bigger prop. Need some 2100s and a 25amp ESC to be safe... but then that defeats the weight savings.

I had a LSPJ on a 19oz F-15, it was fast, but not spectacular - I was using the 6x4 however. I am installing the 2212-06 this weekend to compare (better thrust numbers, I don't need any more speed but I do need the thrust). It'll probably push up the AUW over 20oz though. I'm putting one on a glassed Terry (don't know AUW yet) also so I will have more data for different weights soon.

Your plane looks great by the way...
Old Jul 13, 2007, 12:48 PM
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The motor that you are replacing has more power, so your performance will more than likely go down some.

Let me know when you want that plane to haul and I will set you up with one of our customcdr doubles or triples.
My latest doubles are doing 22,000 rpm on 25 amps spinning a 6-4 on 3s.
Old Jul 13, 2007, 02:18 PM
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Quote:
Originally Posted by morphs
Let me know when you want that plane to haul and I will set you up with one of our customcdr doubles or triples.
My latest doubles are doing 22,000 rpm on 25 amps spinning a 6-4 on 3s.

Ooooh, tempting. I have an Hyperion 30 amp esc in there and Hextronic 20-30C 1000mAh batteries (which I do not think are up to thier rating ). I may take you up on that in a couple of weeks.


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