SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Jul 13, 2007, 06:27 AM
Don't lie to my dog.
Gregg28's Avatar
United States, DE, Wilmington
Joined Jun 2005
3,075 Posts
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?
Gregg28 is offline Find More Posts by Gregg28
Reply With Quote
Sign up now
to remove ads between posts
Old Jul 13, 2007, 06:38 AM
Don't lie to my dog.
Gregg28's Avatar
United States, DE, Wilmington
Joined Jun 2005
3,075 Posts
Numbers:

2800kv
185 Watts
18.5 Amps
Gregg28 is offline Find More Posts by Gregg28
Reply With Quote
Old Jul 13, 2007, 10:33 AM
Registered User
morphs's Avatar
UT
Joined Oct 2004
1,624 Posts
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.
morphs is offline Find More Posts by morphs
Reply With Quote
Old Jul 13, 2007, 11:11 AM
Don't lie to my dog.
Gregg28's Avatar
United States, DE, Wilmington
Joined Jun 2005
3,075 Posts
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
Gregg28 is offline Find More Posts by Gregg28
Reply With Quote
Old Jul 13, 2007, 11:41 AM
EPP Addict
LuckyDay's Avatar
Nashville, TN
Joined Jan 2006
994 Posts
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...
LuckyDay is offline Find More Posts by LuckyDay
Reply With Quote
Old Jul 13, 2007, 11:48 AM
Registered User
morphs's Avatar
UT
Joined Oct 2004
1,624 Posts
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.
morphs is offline Find More Posts by morphs
Reply With Quote
Old Jul 13, 2007, 01:18 PM
Don't lie to my dog.
Gregg28's Avatar
United States, DE, Wilmington
Joined Jun 2005
3,075 Posts
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.
Gregg28 is offline Find More Posts by Gregg28
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log Eurofighter Typhoon for the Little Screamers Park Jet errolw98 Pusher Prop Jet Models 316 Nov 14, 2011 06:11 AM
Discussion Little Screamers for Alfa's? Dora Nine Electric Warbirds 6 Dec 23, 2006 10:22 AM
Wanted LITTLE SCREAMERS MOTOR for MICROJET Artsloper Aircraft - Electric - Power Systems (FS/W) 4 Sep 04, 2006 01:18 PM
Sold For Sale or Trade: Little Screamers de Novo wcntech Aircraft - Electric - Power Systems (FS/W) 2 Feb 18, 2006 06:50 PM
Which connectors and mounts for Little Screamers? Frankd1 Power Systems 2 May 14, 2005 12:34 PM