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Revolution Models . CarbonXtreme . Midland Helicopters

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e-Robbe Eolo > What head speed to run
 
 
MattHarper
Senior Heliman
Location: Lancashire, UK

My Posts This: Topic  Forum		I've almost got my Spirit LiOn (all metal with carbon blades) ready for flight and was wondering what head speed to run it at. I need some idea of a ball park setting for long flight times (not all out 3d)

Thanks
09-22-2009 09:29 PM
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comet
Veteran
Location: Paris

My Posts This: Topic  Forum		Hi !

whichever motor, try out pinions

U should be able to get 8~9 minutes of fair flight!

VT "absolutely lovely stuff"
09-23-2009 09:13 PM
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jas750l
Heliman
Location: swindon,wilts,uk

My Posts This: Topic  Forum		I`m using a 15T pinion on a Twist 37 just for circuits,stall turns etc
09-23-2009 11:15 PM
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MattHarper
Senior Heliman
Location: Lancashire, UK

My Posts This: Topic  Forum		I've got a Twist 37 with 15t set up also. What is your throttle curve set to ?
09-24-2009 08:21 PM
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jas750l
Heliman
Location: swindon,wilts,uk

My Posts This: Topic  Forum		I just put into idle up at 100%
09-25-2009 08:26 PM
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Paul Gleeson
Heliman
Location: Bonn, Germany

My Posts This: Topic  Forum		I have a twist 37 with a 14t pinion. 3S Kokam 3200

Using a Kontronik Jazz at 50%, I get ~1800 rpm

Pretty mild, but fine for hovering and forward flight
09-26-2009 08:26 AM
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MattHarper
Senior Heliman
Location: Lancashire, UK

My Posts This: Topic  Forum
Quote 
I just put into idle up at 100%

The headspeed must be ballistic at 100%. I recall using using a SkyTach on mine during the winter and at @50% I get 2000rpm with a Twist37, 15T pinion with the Kontronic ESC. I can't recall if the ESC was auto calibrated though (i.e. the model spooled up with 0 degress pitch as per the manual)
09-27-2009 09:14 AM
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Paul Gleeson
Heliman
Location: Bonn, Germany

My Posts This: Topic  Forum		At +75% I also get about 2100 rpm.
(Assuminging the throttle is 0 to 100%)

Not sure I want to push it further as this gives very little headroom for the governor to increase power when you pull some pitch.

Anyway, for the type of flying I'm doing now, 1800rpm is just fine, plus I get 12 min flights from my Kokam 3200s

Paul
09-27-2009 09:28 AM
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HeliProz . Ron’s HeliProz South . MTA Hobbies

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e-Robbe Eolo > What head speed to run
 
 
jas750l
Heliman
Location: swindon,wilts,uk

My Posts This: Topic  Forum		Perhaps my motor is shot then, the head speed is not ballistic. No where near as fast as my trex 450. I`ll have to borrow a tach and see what its doing.....
09-27-2009 10:13 AM
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Revolution Models . CarbonXtreme . Midland Helicopters

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e-Robbe Eolo > What head speed to run
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