panther

[dave dobson 1]

Hi maybe I have missed it somewhere but when checking the C of G of the panther is this done without the rotor head or do the blades have to be in a certain position.

regards Dave

[Andy Nash]

Hi Dave

Rotor head must be fitted.

You would not check a fixed-wing machine CofG without its wing attached would you?

Set the 3 blades fixing bolts tight enough so you can set them at 120°. I understand that you would think that two pointing forward or one pointing forward would change the CofG but remember the blades are balanced and fitted to one steel shaft. So it does not matter where they are pointing to check you have the correct CofG. Just have them at 120°.

Note: It is better to have a nose heavy machine rather than a tail heavy one. This rule will apply for both the fixed wing and the autogyro.

Mine is nose heavy by about 4mm forward of the CofG shown on the plan. That is how I like to have my setup.

Also you can move the rotor gear box forward or backward on the top of the model to reduce or add nose weight. I refitted mine forward 5mm from the plan position to reduce the nose weight. Due to the ASP 52 four-stroke engine.

Hope this helps.

Regards Andy

Edited By Andy Nash on 13/11/2013 20:34:13

[Steve Jones 2]

Yep mine is balanced with the head and blades on.. using the servo eyelet in the base of the mast and suspended via close loop wire to check - slightly nose down