Schempp-Hirth Duo Discus X

N533BG -- MG - Mike Golf

Duo Discus X

Pilot Approval Requirements: The Duo Discus X is a dual place, advanced glider and requires pilot check out, unless accompanied by an instructor. All pilots should see Pilot Information Section.

Duo Discus piloted by Mike Green and John Apps, Photo by Tom Jue

The Duo Discus X has landing flaps incorporated into the movement of the airbrake lever to improve its approach control, giving steeper and slower approaches, it also has winglets to improve thermal flying and a sprung and lower retractable undercarriage. This makes it slightly harder to get in because the distance between the cockpit and ground is increased but the wings have a slightly higher angle of attack.

The Duo Discus 'X' is a further development of the Duo Discus. New airfoil, flaps-linked-to-air-brakes system, winglets and damped main wheel at the original plane. Glide ratio 1:46 at 100 km/h or 54 knots.

Download the Duo Discus Polar and Specifications sheet (PDF 158KB
Download information Duo Discus Flight Manual (3.1MB)

[ Top of Page ]

Schempp-Hirth Duo Discus Specifications

Performance:

L/D Max: 45  100 kph / 54kt / 62 mph --- MinSink: 0.58 m/s / 1.9 fps / 1.13 kt -- Aspect ratio: 24.4
Span Area Empty Weight Payload Gross Weight Wing Load Water Ballast
m ft sq.m sq.ft kg lb kg lb kg lb kg/sq.m lb/sq.ft kg lb
20 65.2 16.4 175.3 410 904 290 549 700 1453 42.7 8.74 200 441

Polar:

The factory polar chart shows the the sink of the glider at particular speeds flown - based on standard gross weights (wet and dry). You should memorize your the speeds to fly and be able to quote them from memory. Where else can you find speeds to fly?

Duo Discus Polar Chart

[ Top of Page ]

Instrument Panels

Schempp-Hirth Duo Discus X Instrument Panels - Front and Rear

Weight and Balance

You must be aware of the weight and balance envelope of the glider you are flying. Know how to add weights as required to stay within the correct moment.

[ Top of Page ]