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Scorpion Power GLOBAL 3D
HelicopterIRCHA
International Radio Controlled Helicopter Association
› New event idea: Electric Endurance
05-14-2017 07:56 PM  44 days agoPost 1
heliraptor10

Key Veteran

kokomo, in-US

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An electric endurance event.

Helis would be tuned low, and packed full of batteries, weight reduced (this last factor would require safety review I feel).

They would have to meet certain goals. Not quite forcing them all to do the same flight pattern, but checking maneuvers off a list,

Finally maintaining a hover while playing "chicken" with your battery voltage because you would have to land with a minimum voltage left in the pack such as 3.7v per cell.

The battery would be checked by an IRCHA designated individual.
Independent of the pilot's voltage monitoring system.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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05-15-2017 12:24 AM  44 days agoPost 2
BeltFedBrowning

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Kansas City

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Lipos only? I have an Eco 8 running on a 10 cell nimh. One of these is the original record holder for the endurance event.

perfer et obdura; dolor hic tibi proderit olim

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05-15-2017 12:45 AM  44 days agoPost 3
heliraptor10

Key Veteran

kokomo, in-US

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Well that presents an issue,
And an important one if the concept is to push electrical tech further. Because it would be great to see more options than we currently have.

But different battery technologies having different cutoff voltages could present a bias.

Any ideas?

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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05-15-2017 01:03 AM  44 days agoPost 4
BeltFedBrowning

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Kansas City

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I can run the nimh batteries till the headspeed is so slow that it won't even hover. Maybe seperate the battery technologies? Nimh and nicad together.

perfer et obdura; dolor hic tibi proderit olim

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05-15-2017 01:29 AM  44 days agoPost 5
heliraptor10

Key Veteran

kokomo, in-US

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I'm wondering if there would be enough interest in the concept to even have categories.

Maybe the 3.7 per cell limit could only apply to lithium tech. Under a sort of blanket rule that electric tech is reusable, so making a record by destroying the tech defeats the purpose.

So using NIMH or nicad your advantage would be that,
You'd be able to stay airborne until dead.
However safety wise,
I'm thinking that helis using these types of batteries should be required to use a Rx pack, to prevent loss of control due to brown outs.

Goblin! where have you been all my life?
RC helis, the original fidget spinners

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05-15-2017 02:47 AM  44 days agoPost 6
BeltFedBrowning

Key Veteran

Kansas City

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I imagine it wont be an issue, like you said. If you get any takers, they will be using lipos.

perfer et obdura; dolor hic tibi proderit olim

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05-15-2017 08:54 PM  43 days agoPost 7
IRCHA

Senior Heliman

Muncie, IN

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Several years ago this was a small "competition" at the Jamboree. If you guys want to organize it and create some basic rules, we would be happy to find a place for it to happen.

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HelicopterIRCHA
International Radio Controlled Helicopter Association
› New event idea: Electric Endurance
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