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04-29-2004 10:01 PM  13 years agoPost 21
dennis_cica

rrApprentice

USA

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additional clarification

With extensive testing we found the components now supplied with all Hummingbird combos work very well. The helicopter mechanics have further potential for aerobatics.

The base system worked and so we released it.

We plan on making a higher performance mixing system available as an upgrade for the advanced pilots demanding the maximum performance.


MP: The problem you are having may be an isolated incident. After all the testing there does not seem to be any advantage or disadvantage to either unit. Possibly weight or ease of maintainance.

Dennis Cica
Century

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04-30-2004 06:27 AM  13 years agoPost 22
Minor Problem

rrApprentice

Isle of Wight, UK

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Dennis,

Thanks for the response, I can't wait to get my new controller and start throwing the CP about. It is a great looking se of mechanics.

MP

James Bond doesn't have to put up with this sort of sh*t...

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04-30-2004 04:16 PM  13 years agoPost 23
lowandslow

rrKey Veteran

Spring Hill, TN

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Got my CP hummer in the air last night. I used all the components from my FP hummer, the acro 280, green mixer board, HS55 servos, etc. I first tried a 7.2v 1200 lipo and I couldn't get it more than about a foot off the ground. Then I tried a TP 3S 1300 pack and it came to life. Plenty of power and all the head speed one would ever need. The main motor and tail motor were EXTREMELY hot after about a 5 minute flight. This bird is definitely going to take some tweaking and rework for it to be right. I haven't gone into the head yet but it will need to be reworked for sure. The pitch range isn't there either. This bird will not do 3D out of the box in it's current state. My tail kept letting loose as well towards the end of the flight but that may have been because it was over heating. It has potential but truthfully my FP flew better out of the box. I'll keep working at it to see what this pint sized chopper has to offer.

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04-30-2004 04:19 PM  13 years agoPost 24
ReadyHeli

rrVeteran

Jupiter, FL

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u will fry that hummingboard with anything over 11 volts.

dont believe me? i fried my acro 280 / hummingboard combo last night with a 3s li-po.

this has prompted me to go brushless.

best of luck.

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04-30-2004 04:30 PM  13 years agoPost 25
lowandslow

rrKey Veteran

Spring Hill, TN

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Been flying my FP hummer with the acro 280, hummingboard and 3S lipos for months, almost every day. Never a problem and runs well within acceptable temp limits. I do keep the flights to 10 minutes each.

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04-30-2004 04:32 PM  13 years agoPost 26
ReadyHeli

rrVeteran

Jupiter, FL

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what voltage is coming out of that 3s?

i promise you it will go bad. hummingboard will get overvoltage from a fully charged 1200-3S

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04-30-2004 04:42 PM  13 years agoPost 27
lowandslow

rrKey Veteran

Spring Hill, TN

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11 + Volts from a 3S. Like I said, I've been flying that way for at least 6 months almost every day. Many others are also using 3S packs with a hummingboard.

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04-30-2004 05:34 PM  13 years agoPost 28
pbmax

rrKey Veteran

Olympia, WA - USA

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Yeah, some have had good results with the hummingboard and 3s, but a good number can't keep the smoke inside theirs. At 12.6v fully charged, that's a decent amount over what they're designed to handle. I imagine the discrepancy amounts to manufacturing differences and such.

Separates is the way to go At least...after your board dies!

pbmax

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04-30-2004 06:04 PM  13 years agoPost 29
lowandslow

rrKey Veteran

Spring Hill, TN

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You're probably right. Don't know if I want to mess with separates or not. Truthfully I just tinker with the little hummers for something to do in the evenings. I'm waiting for the shogun to show up at hobby people. That's the one I'll go all out on.

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05-01-2004 12:21 AM  13 years agoPost 30
shaokhan

rrNovice

Toronto, Canada

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3cell Lipo will fry stock HB/Mixer

I was running the acro 280 with direct drive tail and found that 2 cell lipo was way under powered, especially if you want to fly outsite.
I tried a 3cell lipo with that setup and smoke my HB/Mixer.
I am now running separates.
Mini AC 1215/20 main. It has stupid power. Hover at quarter stick or less.

My setup.

Hummingbird VII
Mini AC Brushless Main.
Jeti ESC Main
Direct Drive Tail 3020 prop
7 Amp Tail ESC
Ball in Swash
Shaft collar
Head Stiffener
Stock Blades (Have CF when these break)

Hitec Eclipse 7

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05-01-2004 02:31 AM  13 years agoPost 31
pbmax

rrKey Veteran

Olympia, WA - USA

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Quarter stick? Geez, I'd go with a smaller pinion for better throttle resolution. Mine hovers at half-stick (10T) and that's still too little in my opinion. I get better battery life when it hovers at about 60% (9T) and still plenty of power.

pbmax

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