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Helicopter
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Align
Other › Rotor head speed
04-04-2005 12:29 AM  13 years agoPost 1
NewRCHeliPilot

rrApprentice

Panama City, Fl.

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As a newbie to the world of RC helicopter, with the only experience being an EF Sabre , I Just ordered my T-Rex from Wes.

My question, how important is the rotor speed to someone just starting out? What I mean is, do I need to run out and buy a tack to make sure the rotor speed is up around 2200 rpm or is there another way to tell when the rpm's are just right? Thanks.

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04-04-2005 12:34 AM  13 years agoPost 2
spritefiend

rrKey Veteran

Camarillo, CA

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good question, same circumstances and was wondering this too..

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04-04-2005 01:13 AM  13 years agoPost 3
derrickbwg

rrApprentice

Lexington, Kentucky

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This was a link Braindrain was kind enough to give me.http://help.mcaprint.com/brian/pinion.asp
Simply plug in the target speed(2200 if thats what you want) and the kv of your motor. It will suggest a pinion for the headspeed you are looking for and should get you pretty close. It's really a matter of what feels right for you so use the calulator to get close then fine tune with the throttle curve in your radio.

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04-04-2005 01:30 AM  13 years agoPost 4
NewRCHeliPilot

rrApprentice

Panama City, Fl.

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derrickbwg

Thanks, A cool new web-toy to play with. Still not sure how gauge rotor head speed with it, but were going to work on it.

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04-04-2005 06:42 AM  13 years agoPost 5
SJS

rrApprentice

NYC

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I clamp my t-rex to my workbench and use an airplane prop tach to gauge headspeed. I fount that 2100 for normal flying is good, and 2400-2450 is ideal for 3d. I get about 13-15 min on 2100, and 7-8 min of hard 3d.

SJS

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Helicopter
e-
Align
Other › Rotor head speed
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