The Slingsby Type 34 Sky is a high performance single seat competition sailplane built in the United Kingdom.

Consequently, the Sky was aerodynamically identical to the Gull IV apart from span (and hence aspect ratio) and length, though it differed in construction.

Air brakes are mounted on the spars as aerodynamically balanced pairs above and below wing; the lower panel open into the airstream and lever the upper ones against it.

[2] The cockpit of the Sky is of standard Slingsby design and built on the same jigs as those used on the Gull IV and Kite II, with a single piece perspex canopy hinged on the starboard side.

Behind the cockpit the fuselage is a semi-monocoque structure, with a stress bearing 1/16 in (1.6 mm) plywood skin formed over light frames positioned by three longitudinal stringers.

Trials led to readjustment of the centre of gravity and the replacement of the Gull IV rudder with an aerodynamically balanced one of greater chord.

[9] Sixteen Skys were built;[10] of these, six still fly in the UK, including the Swiss record holder, and one in the Netherlands;[11] two others are under restoration.

[12] Data from Ellison 1971, p. 203, The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde[13][14]General characteristics Performance