Stone Tool wrote:

The statement that the control surfaces on a canard such as the VariEze have
"insufficient authority" to put the aircraft into a stall is really not
accurate...... or rather it glosses over the real situation which is that
the canard stalls before the main wing.   When the canard begins to
experience flow seperation this seperation interferes with elevator
authority.......Add to this that there is a significant percentage of the
weight supported by the canard which becomes more or less unsupported when
it loses lift, and there will be a pitch down moment when the canard breaks
which exceeds the ability of the elevator to overcome it.

    This is a far more complex situation than simply "not enough elevator
authority"..... a gross oversimplification which suggests that the EZ series
use a limited elevator like the Ercoupe which they do not.

                                H.W.

  I tend to 'roughly' agree, altho my Long EZ plans gave STRICT recommendation
on a hard stop for the max TE down angle allowable for the elevator.  Probably
to ensure that you couldn't force the main wing to stall at the design max
aft CG.

Bill

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