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Glider Göppingen I, type "Wolf".
The training glider type "Wolf", fully aerobatic, built by Sportflugzeugbau Martin Schempp, Göppingen, is a new design by Wolf Hirth.
The construction shows the well-known Hirth construction method of the surface with a profiled tubular steel strut (77.6X38.8X2.5 mm) with universal joint.
The wing has the Göttingen profile No. 535 in the middle piece and transitions into a symmetrical
profile on the outside with a sudden leap in articulation (as in the Moaza-goti). In order to maintain the most elliptical lift distribution possible, the wing depth in the outer half was increased, which at the same time resulted in particularly effective
ailerons, which also have a finely tuned differential.
This, together with the remarkably good effect of the Göppingen I type "Wolf" side glider. Right: Miss Joan Meakin shortly before her start from Hornberg to Lympne.

"FLUGSPORT"
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, makes the machine very manoeuvrable and especially useful for the exact execution of any aerobatics, which was shown by the test flights of Wolf Hirth and
Martin Schempp. A light auxiliary handle, which engages the front main stem near the root and leads to a slight rear spar, is only used for
aerobatics with particularly high loads on the machine. This auxiliary handle is cushioned with rubber and only comes into action when the
wing is roughly twisted, so it only forms an additional safety in aerobatic training for hard flying of aerobatic beginners.
In aircraft towing, the "Wolf" proved to be very stable and, as in normal flight, could be flown hands-free for a long time.
A permanently installed "one-wheel chassis" with a low-pressure tyre of 32 cm diameter urjd with effective braking not only facilitates transport on the ground,
but also ensures a quick take-off, whether it is a bungee cord or a tow take-off, but also takes rough landing shocks with sliding landings much better
than a runner. In addition, the steel spring tail spur is particularly cushioned with a tennis ball. — The fuselage turret width to the trailing edge of the wing.
The cab panel, equipped with a celloon windshield, leaves the leader's head free. The fairing has a secure closure, but
can be quickly thrown off with just one movement. The aileron slot fairing is made of Formica. The assembly time is very short due to the use of self-locking patent spring bolts.
Wingspan 14 m, area 15 m2, aspect ratio 1 : 13, wing loading 14.6 kg/m2, set-up weight 145 kg, payload max. 100 kg, normal flight weight 220 kg.
The first type "Wolf" was purchased by National Aviation Displays Ltd., London, and flown by the well-known English pilot Miss Joan Meakin in an aircraft tow from Göppingen directly to London. Miss Meakin will show aerobatics with the glider at the daily flight events of the aforementioned company and will also take it with her to India in autumn. For Miss Meakin, a radio system was installed on special request.
The price of the Göppingen I model "Wolf" with a one-wheel chassis is RM 1500. The construction drawings cost RM 45.—