My 2c worth of logical deduction - tell me if I am wrong.

Worldwide aviation law is all based on the Chicago accord, and
subsequent ICAO standards. There are national differences, but the
principles generally apply the same in every country.

If a type is type accepted - then the manual is part of the acceptance.
The type acceptance is what he national CAA use to determine what is
permissible and what is not.

There are two ways to operate a type accepted aircraft - Type certified
or non-type certified.
In either case the national Civil Aviation Authority generally applies
the Type accepted manual as the reference for what is or is not
permitted operationally.
If there is a substantial change due to a TN, the national CAA may elect
to re-certify the airframe.(different type certificate, not different
type acceptance)
For optional changes, and especially where the type has been
re-certified it is obviously important that your manual refers to the
correct type certificate for it's contents, and the operating limits you
apply.
The approved manual specifies what manoeuvres are permitted.
The manufacturer occasionally issues mandatory modifications to the
operating limits, and procedures.
These are (surprise) mandatory to apply. They change the manual and the
approved operations for the type.

If the manual is changed by the manufacturer then the change applies
everywhere the type is approved, and affects and modifies the type as
certified.

Logically, it follows that - in most of the civilised world - since 1967
it has not only been delightful and instructive to spin, loop and do
gentle chandelles in the K13 - it has also been legal. (assuming that
you are complying with the other rules about height AGL, and speed and
keeping clear of "stuff")

Please do not restrict your activities to teaching incipient spins. The
K13 will spin in more ways than most and recovers easily and honestly.
Ideal to teach and practice safe gyrating.

Bruce

On 2011/12/20 4:33 PM, James Rizzo Esq wrote:
We are examining the Type Certiifcate for the K13. The original indicates
aerobatics including spins "not approved".

in 1967 Schleicher issued an AD approving semi aerobatics and spins, and
printed a modified page 22 to the flight manual. Does this automatically
modify the type certificate? Is there some authority I am not aware of? We
woud like to instruct spin entries in our machine, but are uncertain of the
legal status.

jim Rizzo



--
Bruce Greeff
T59D #1771