RunRyder - Looking for cheap brushless.

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e-Century Hummingbird - Swift > Looking for cheap brushless.

hblearner
Senior Heliman
Location: Perth, Australia

Hi all,

I am ordering things from Hobby City for my 3D electric and I am going to resurect my hummingbird FP. It's been sitting idle for a couple of years. I have replaced the 380 brushed motor several times and got fed up with it and stop flying it.
Now we have many selection of cheap brushless to choose from. I am sure some will fit nicely without buying a more expensive one like Razor.
I want to get my HB operational again. It's for occasional flying in a living room where I am bored. I also have a spare Futaha headlock gyro that I will use on it, the tail motor has been replaced with a longer size (GWS brand I think).
Can someone help me choose a brushless please.
I have 2S 900 mah but I will buy 3S if need to.

Thank you.

02-29-2008 12:38 AM

RUSH
Heliman
Location: Los Angeles, CA

I've been using an E-Flite Park 370 4100kv on 2S lipo in my FP for a few years with great success. I use an HPI pinion (I believe it's an 8 tooth) made for the RS4 cars and it meshes nicely with the main gear. If you go this route, you need to grind out the frame a little bit to fit the pinion gear through it - no biggie though. You could also look at the Himax 2015-4100 - I think it's the same as the Park 370.

03-01-2008 06:37 AM

hblearner
Senior Heliman
Location: Perth, Australia

Thanks Rush.

From the specs it's a big motor for a HB FP?
You don't find it too heavy do you?
What lipo are you using and what is the flight time on hover? Thanks.

03-04-2008 12:50 AM

RUSH
Heliman
Location: Los Angeles, CA

You're welcome! The Park 370 that I'm using is exactly the same weight as the stock motor (46g), but has a lot more power so it flies just fine

I've used batteries ranging from old Etec 1200mAh to Prolite 1320mAh and get a good 15-20 minutes hovering/slow flight time (in the living room).

If you want to lighten the HB up a little you can use a smaller battery and still get a good run time - an 800mAh would get you a good 10 minutes. But, remember that a lighter FP heli has a lower headspeed which makes the cyclic response more "mushy" - something I don't like myself.

03-04-2008 01:46 AM

hblearner
Senior Heliman
Location: Perth, Australia

How about this

Do you think this is a good motor for a HB?
Will it fly okay on 2S?
How much throttle do you think I need to hover? Would be nice on 50%.
It comes with a 13T pinion so I don't need to drive around looking for pinions. They can be hard to come by.

http://cgi.ebay.com.au/New-3800-KV-...1QQcmdZViewItem

Or a ligther motor with 5000KV. I can get 11T and 13T pinions on ebay for this shaft size.
http://cgi.ebay.com.au/ws/eBayISAPI...:MEWA:IT&ih=017

03-14-2008 06:02 AM

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e-Century Hummingbird - Swift > Looking for cheap brushless.

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