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02-15-2011 06:43 PM  6 years agoPost 1
thenewguy

rrElite Veteran

Corvallis, Oregon​Where there is​liquid sunshine!

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How do you calculate flight times for a given system.

An example.

TP 65C 12s 5000

Jive 120HV
Pyro 700-52
Pinion?

Can you get some type of idea for flight times?

Thanks,
Chris

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02-15-2011 06:50 PM  6 years agoPost 2
michael88997

rrElite Veteran

Lewisville,Tx

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there are waaaay to many variables to calculate a flight time... air density, temperature, pressure of gears or belts, quality of soldering, how soft or rough you are on the sticks.... most 700s can get anywhere from 4 min to 12 from what ive seen

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02-15-2011 06:58 PM  6 years agoPost 3
thenewguy

rrElite Veteran

Corvallis, Oregon​Where there is​liquid sunshine!

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Just a shot in the dark.

Thanks,
Chris

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02-15-2011 09:06 PM  6 years agoPost 4
Flying Brian

rrElite Veteran

St. Clairsville,​Ohio

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Gear ratio and Head speed will give you the best idea where you will stand. From there, it is all in trial and error.

You should have really good answers in the helicopter thread that you belong to.

We need a gear ratio to get started here.

"I just don't Listen" "

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02-21-2011 01:16 PM  6 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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And the heli? Blade length? Flying style?

4 mins would be stick banging at high rpms (2200-2300 with 690 blades maybe)

8 mins would be gentle circuits with the odd loop and roll at medium rpms (1700-1800 with 690 blades maybe)

12 mins would be hovering and gentle circuits at low rpms (1400-1500 with 690 blades maybe)

60% of the time, it works every time!

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02-21-2011 01:27 PM  6 years agoPost 6
Steff Giguere

rrProfessor

St-Eustache, Quebec,​Canada

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Trial and error, start with 4 minutes and from there do the calculations.

Team Synergy, Rail blades, Team Scorpion, V-Team

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02-21-2011 07:56 PM  6 years agoPost 7
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Yes, the higher the HS, the less flight time under all conditions...

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