Here is a update from my previous post of my Jabo II (Hummingbird clone):
https://www.rcgroups.com/forums/showthread.php?t=337354

The project started out to see how far I could take the stock Jabo II 4in1 board without frying it and still perform without any adjustments on the board.

I added a Lipo 7.4v 1200mAh 2cell Lipo battery, GWS EDP-300H motor, Like90 Blades and Head stiffener, DD Tail Kit and 4530 prop with adapter, Aluminum Boom shortened 1 ½”, 4in1 board heat sink on the FET’s, etc…

With a 120 tooth main gear and a 9 tooth main motor gear I get about 15 minutes of flying time per Lipo. Tail motor gets slightly warm, main motor gets warmer, but not hot. Battery is slightly warm after about a 5 minute hover.

There seems to be plenty of power. It takes half throttle (throttle trim all the way down) for a 2 foot hover.
I’m still a beginner so I can’t test the heli to its full potential.

Tail is very responsive and holds pretty well for a cheap 4in1 board. When battery drops below 7.1 volts I have to start using the trim.

I will post a video as soon as I can.

This is the end of this project, my next project will probably be a E-sky Honey Bee CP, then I’ll move on to the big boys.

Thanks again to all.

Novak

Wow, looks very nice!!!

What make are those packs?

Duane

minimole,
These packs are generic, I got 2 batteries and charger from rcbeginners on eBay for $39.

They seem to be OK so far.

Novak

Where did you get that DD mount from ?

cheeto,

I purchased the plastic rod end from...
www.mcmaster.com part#:1064K412

I believe the plastic adapter acts as a heat sink with the aluminum boom, because the tail motor is only slightly warm after a 5+ minute hover.

Novak

Awesome exactly what I was looking for