At 17:42 28 March 2004, Denis wrote:
Andy Blackburn wrote:

I'm sure everyone agrees the best advice is not to
get into a situation where you have to choose between
Vne and the G-limit. Thinking ahead with respect
to
attitude and configuration as you initiate recovery
is your best bet.

(...)

if you get to this point you are in a world of hurt
anyway so the amount of over-G versus over-Vne is
subject
to your personal risk profile.

cant remember ever having to pull more that 5g in the
odd incipient spin in the ls6, but then you have also
the additional problem in your spin recovery of having
to dump the flaps into full reflex.


I agree with all Andy said. I would add that 'pulling
as hard as
required to avoid VNE' is easier to say that to do,
because :

- it is impossible, if you are not an experimented
glider aerobatics
pilot, to know how many g's you need to avoid exceeding
VNE,

you pull as hard as you need, and its not impossible
to know either, thats why you should practice spin
recovery.

- depending on dive angle and speed, it may be just
impossible to avoid
VNE without airbrakes,
even if pulling 15 g's (supposing the wings have
not briken before)

and presuming you have not blacked out by then also,
i start to grey out at about 7g from more than 5 secs
exposure at that level.


- it is impossible without a g-meter to know if you
pull 5 g (or just a
little more, comprised in the 'safety margin'), or
10 g's or more.

you would probably have blacked out about 9g




as seems to be typical here, not much mention of prevention,
or the possible reason for why you got yourself into
a position where you are approaching Vne. When it says
'ease the stick forward until the glider unstalls'
that does not mean push it to the forward stop and
dive out of the spin............