View Single Post
Old Dec 13, 2012, 03:16 PM
gooniac33 is offline
Find More Posts by gooniac33
Registered User
gooniac33's Avatar
Sunnyvale
Joined Feb 2009
5,573 Posts
Quote:
Originally Posted by solentlife View Post
Hi Gooniac .... here's my tips to try and get you thropugh the maiden without pranging it !

a) Make sure you use a straight edge through elevator and stab centre line to make sure those elevators are neutral ... I tried by eye and it was out. The aerofoil shape deceives the eye ...
b) CoG is fine at 30 - 32mm back from L/E ... in fact as long as it's slightly ahead of the main wing CF spar - it's fine.
c) Control movements ... elevator is nice at 5mm ... a handful at 8mm !! Aileron is fine at 6mm ... a handful at 12mm .... I fly mine with Elevator at 5mm and Ailerons at 6mm for normal flight. Once I want to start throwing her around I ONLY flick Ailerons up to full rate of 10mm ... which is still reasonably controllable. All measurements at inboard ends of surfaces.

The 540 on it's 7x6 and 1400kv stock motor is still fast on a 3S 2200 25C ... there really is no need to go higher KV. The only niggle I have with my stock motor is it seems to have a dead spot at low throttle. You move stick and she suddenly jumps to about 5 - 8% throttle instead of smooth start ... and when bringing throttle down - at that end point that you'd like prop just turning when landing etc. - it stops ! Tried resetting ESC ... cleaning and lubing the motor etc. but no change.

Nigel
Thanks for the info Nigel!! I noted all of this from previous post as well and made sure to add in lots of expo (40% to start) on ailerons and have about 6mm max throw. I always add tons of expo on the rudder since I do ground take off so it is at about 85% with maxed out throws. Elevator throw is at about 5-6mm too with about 20% expo. Haven't checked CG yet but will get that right too. My eyes were fooled by the colors at first on the elevator but I caught it and made it level...

As for the amount of power.... I fly mode 2 which means that there is this thing on the left stick called throttle...LOL Even if I have a motor that makes it go light speed doesn't mean that light speed is my only option... I can manage the throttle very well if need be. 1950kv suits me just fine!! I will try to get a video of it as well...
gooniac33 is offline Find More Posts by gooniac33
Reply With Quote