[NSRCA-discussion] Foamy for pattern practice

[Tom Simes]

On Sun, 8 Jan 2006 15:38:48 -0500 (EST)
colin chariandy <cchariandy at yahoo.ca> wrote:

> I finally got the F3A flying today ( no snow, no wind, no rain). With
> a Kokam 3S 340 pack I am way short of power. I'll try a 3S 500 next.
> Also, the aft cg limit in the manual (60mm from LE) is still very nose
> heavy. What's the best cg position for pattern?
>    
>   Thanks
>   Colin.

Hi Colin,

When you say that you are short on power, do you mean you lack thrust at
full power or you are just not getting much duration out of the packs? 
I know when I started flying my foamie outdoors this winter, I was only
getting 2 - 3  minutes out of a pack that would normally give me 10 - 12
minutes indoors.  The duration was so bad I initially thought I had put
a partially discharged pack on the plane.  A fellow club member
suggested wrapping my batteries in one or two layers of the 1-2mm foam
packing sheet to help retain a little heat and that brought my outdoor
times back in line with what I was getting indoors.  Just FYI, I'm using
2C Kokam 340s Etec 450s on a EPP foamy (4.9 oz. AUP w/340s).

-- 
Tom

_____________________________________________________________________

       |  ,  |               Tom Simes
---------(@)---------        AMA 230068
        --|--                NSRCA 3830
          '                  nsrca at shinymetalass.com