Time for an update!
I've been doing a LOT of flying since I built the first HK-450 back in January....
My personal Heli has had a few upgrades to fly as I like it to (read very twitchy!).
Things I've upgraded:
Complete alloy Rotor head
Carbon fibre main frames (save weight add stiffness)
Trex 450 pro canopy (lightweight f/glass)
4000 kv motor (pulling 55 amps!)
60 amp Esc
4S - 14.4v 2200mah lipo batteries
Digital (0.07/60) tail servo
The biggest changes were fitting the KBB tail blades & flybar paddles, Roll rate is now about 3 rolls per second v's 1 roll per sec with the stock paddles...very grin worthy!
I'm also running 4 cell packs in it now for more punch (power), it's pulling 55 amp peaks which calculates out to 670 watts! ......he he! Quite a power upgrade from the 300w original set up!
The head speed I've settled on is 3200 rpm with the carbon blades and +/- 12 degrees collective pitch, on 4S there is no bogging at all, ever!
I have had to use an align trex 450 fibre glass canopy to correct the centre of gravity when using the heavier 4S batteries....+ It's purdy.
Hk-450 in drag....Trex 450 Pro canopy is 1/4 the weight of the original one.^^
