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Home✈️Aircraft🚁HelicopterLow Head Speed Helicopters › Am I doing LHS correctly?
10-31-2020 07:53 AM  31 days ago
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UH-60PILOT

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Pyeongtaek, South Korea

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Am I doing LHS correctly?
I'm flying a Logo 600 with an Xera 4020/2Y 1000 8P motor controlled by a YGE 90 LV ESC pushed by a 5000mah 6S 55C pack.

I'm running Mod .7 gears with a 14 tooth pinion and a 153 tooth main gear for for a gear ratio of about 10.92:1.

With my throttle curve at 90% my headspeed is 1,600rpm and at 100% it is 2,000rpm. Max flight times are 9 minutes doing soft 3D and I'm putting around 80% back into the pack when charging.

I'm running +/-10 degrees of pitch but I'm probably going to increase to 12 degrees not because I feel like I need more top end punch but because it feels a little sluggish in the hover especially when doing flips and trying to catch it before it falls.

I've never messed with motor timing. I'm wondering if anyone here sees anything wrong with my set up or can advise of things I could do to improve it?
Kenny Thompson
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11-05-2020 02:04 PM  25 days ago
Rojoalfa

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Punta de Mata, Monagas-Venezuela

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/
/

My friend, your number are very good.

IMHO, we need to clarify what "improvements" mean to you.

Most of enthusiasts measure "improvements" by increasing flight time. Other take account of "good looking manouvers".
But, this two "improvement" are not proportional.
More agresive manouvers mean less time.
More time means less agresive manouvers.
Others like LHS because is cheaper... Less stress on mechanics and your wallet.

LHS needs good and new lipo packs for "good manouvers". Unfortunately, lipo packs get old with time.
LHS don't need good lipo packs for no 3D style so, your old packs can be flying again.

You spend 80% of lipo energy. Very good. So, try to do your "good looking manouvers" on the first half of this lap time.
Bad choice if you think to do the same agresive manouvers all over your flight time.

Don't mess with motor timing.
But, if you want to do so, get a temp probe and do your "tweaking thing", carefully.

Remember, more heat, less time.
More heat, less life span on magnets.

Pitch response, I like that.
If you want more "pitch response" don't use straight lines on your curves.
Work with convex curves at the end of the 10 degrees!
More pitch, less flight time.

/
Saludos cordiales,
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11-07-2020 09:26 PM  23 days ago
Heli Fanatix

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Fountain Valley, CA

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If possible, I would consider a higher amp ESC ... preferably a Kontronik 120A for your 6S setup. Solid BEC with Legendary GOV. Depending on the version .. you can have lower HS with multiple TC on the fly. Works really well with Xera motors.

Also simple setup.
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11-27-2020 01:55 PM  3 days ago
UH-60PILOT

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Pyeongtaek, South Korea

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Thanks for the advice. I think I am going to buy an XL Power Protos Evo 380 and later a 700. I like the all belt drive for how quiet it is. Those machines seem to be very light construction and ideal for low headspeed flight. I've looked up a few videos of them flying at low headspeeds and they seem to perform very well. I would fly the 700 on 6S. I think getting rid of half the battery mass would make it nice and light. I would fly both machines with soft dampners and step up the tail rpm. I'm flying V-Bar in my Logo 600 but thinking of going with the Bavarian Demon Axon in these machines. Any thoughts?

Here are a couple of videos I found:

Protos Evo 380 @1600 HS:

Watch at YouTube

Protos Evo 700 @ 1350 HS:

Watch at YouTube

Kenny Thompson
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