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Old 07-28-2016, 12:19 AM
  #166  
serious power
 
Join Date: Nov 2007
Location: wexford, IRELAND
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Hi Dag,
That would be a very good target. (My original answer to your question was not very clear - sorry)
However (there is always an 'however' ) what is more important is to have light wings and tails. If these are lighter you have much less rotational momentum/inertia when doing rolls, snap roll and spins.
As a result these will all be easier to initiate and to stop. At any given rate of rotation the effect will be two fold ;
- Easier to perform these consistently.
- They will be much more 'crisp' in appearance. At a chosen rate of rotation, fast or slow, the rotation will start and stop more crisply. There are lower inertia levels.

Momentum/inertia are a function of weight, a multiple actually !! So you get a multiple of the weight reduction in reduced momentum.

So build these as light as is possible and consider building them so they get progressively lighter from root to tip. Keep wing servos and links etc inboard and tail servos forward in the fuz.
The wings are most important. Tail weight effects snaps for the most part.
Obviously the lighter all these are the lighter the total.
So there is total weight and distribution of weight to think about.

Brian