Jim Culp wrote in message ...
First, read the Glider aircraft
Airworthiness Certificate,
and its
Operating Limitations.

Do all USA airworthiness certificated gliders have
operating limitation
of
Day VFR ?


My first reply was based on my ASW 28 with experimental certification.
My ASW 19b has a standard airworthness certificate and IFR in this
glider appears to be much more practical.

The type data sheet ref http://members.cox.net/asw19/g36eu.pdf
includes the following statements:

The basic required equipment as prescribed in the applicable
airworthiness regulations
(see Certification basis) must be installed in the glider for standard
airworthiness
certification. In addition the following equipment must be installed:
1) Instruments (Non-Cloud flying):
(i) Airspeed indicator, Winter 6FMS/W 19, or PZL PR-250S/W 19 with
extended
range to 270 km/h., or an FAA-approved equivalent.
(ii) Altimeter.
(iii) Lap and shoulder straps.
2) Additional Instruments for Cloud flying:
(I) Magnetic compass.
(ii) Turn and bank.
(iii) Variometer.



The following placards must be installed in full view of the pilot:
1) "This glider must be operated in compliance with the operating
limitations stated in the form of
placards, markings and manuals."
2) "Cloud flying: Permitted only when the following instruments are
installed:
(1) Airspeed indicator
(2) Altimeter
(3) Turn and bank Indicator
(4) Variometer
(5) Compass."
3) "Acrobatic maneuvers including spins must be accomplished in
accordance with the LBA-approved
Model ASW-19 Flight and Operations Manual. Aerobatics prohibited with
water ballast aboard."
4) "Night flying is prohibited."


I am airplane instrument rated and have often considered putting a
turn and bank in the 19 and going cloud flying in class G airspace. I
don't understand why the experimental limitation on my 28 are so much
more restrictive in terms of required instruments.


Andy