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RE: HOR Racing 32 - 5/17/2011 8:32 PM   
asupervee72


 

Posts: 698
Score: 100
Joined: 1/25/2009
Last Login: 3/14/2013
From: , CA, USA
Status: offline 		only thing i saw being a potential issue is the prop you picked, it isn't really like an x series. If you look at an x series the tips are not nearly as spooned. This looks like more of a lifter prop to me and the description says it is for a rigger, which usually like more lift from the props. I'd spend the extra 8 bucks on an octura prop but that is just me. A prop is like your tires and transmission, and they make huge differences. I'm not a prop expert but i think the 46mm you linked will cause some problems with ride attitude.

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(in reply to BACKEMF)
       Post #: 26

RE: HOR Racing 32 - 1/2/2012 4:00 PM   
cowana


 

Posts: 657
Score: 101
Joined: 4/25/2004
Last Login: 11/30/2012
From: London, UNITED KINGDOM
Status: offline 		A quick update to this thread!

I finished the boat, with the following specs:
Hull: 32.3" RC Catamaran (hull only) from R2Hobbies (reinforced with carbon fibre)
Hardware from HOR Racing
Motor: Leopard 4074 2000kv brushless motor with cooling jacket
ESC: 180A Turnigy marine (water cooled)
Batteries: 4S: Turnigy 4000mah 40C (2x2S)
Prop: Balanced and polished x447
Transmitter: Spektrum DX3S
Receiver: Spektrum MR3000
Rudder Servo: Futaba S3003

Maximum speed: 83.7km/h

This maximum speed was recorded with no camera on the boat, and the GPS mounted inside at the front of the hull. This added weight at the front made the ride much flatter and smoother - in the videos below you can see the hull starts bouncing at around 3/4 throttle. In the videos, maximum speed is probably around 40-50km/h.

Front view:
http://www.youtube.com/watch?v=6ZK43lFQzoU

Rear view:
http://www.youtube.com/watch?v=AHnRggYsalc

I've ordered another 1S lipo so I can run it on 5S - that way I'll get maximum performance out of the 2000kv motor (and the added weight in the front will help).

Andrew

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       Post #: 27

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