•If it is too far back the tail may not be able to
provide sufficient moment to lower the nose and the glider may be
uncontrollable. You may not be able to recover from a stall or spin.
–Always ensure the pilot weight
comfortably exceeds the minimum placarded weight. IF NOT -
USE WEIGHTS
–(OR DIE)
–In 2-seaters watch the underweight pilot in the front
seat (children)
•If it is too far forward you may not be able to pull out
from a dive or round-out
on landing
–BEWARE overweight pilots
–In 2-seaters watch the heavy pilot in the front seat
•Always check for installed
ballast and tail ballast before getting in to fly
•
•Design-wise the C of G needs to be close to the C of P
–So that the (moment of the) tailplane lift does not need
to be large (and
tail drag can be kept low)
–Also so that a range of pilot weights can more easily be
accommodated
•