Quasar Relief

Design and development

The Relief is made from aluminum tubing, with the cross tube and battens made from carbon fibre and the double-surface wing covered in Dacron sailcloth. The nose angle for all models is 132°. The models are each named for their rough wing area in square metres.

The design is "topless", that is lacking a kingpost and upper rigging, instead using a reinforced cross tube for rigidity.

Some models, designated with an "RX" suffix, have a small horizontal stabilizer attached to the keel tube that can be deployed 90° to act as a speed brake for landing.

Variants

Relief 13

Small-sized model for lighter pilots. Its 10.4 m (34.1 ft) span wing has a wing area of 12.8 m² (138 sq ft) and an aspect ratio of 8:4:1.

Relief 13 RX

Small-sized model for lighter pilots. Its 10.2 m (33.5 ft) span wing has a wing area of 13 m² (140 sq ft) and an aspect ratio of 8.0:1. The pilot hook-in weight range is 55 to 90 kg (121 to 198 lb). This model has a small horizontal stabilizer attached to the keel tube that can be deployed 90° to act as a speed brake.

Relief 14

Mid-sized model for mid-weight pilots. Its 10.4 m (34.1 ft) span wing has a wing area of 13 m² (140 sq ft) and an aspect ratio of 7.7:1. The pilot hook-in weight range is 60 to 100 kg (132 to 220 lb).

Relief 14 RX

Mid-sized model for mid-weight pilots. Identical to the 14, except this model has a small horizontal stabilizer attached to the keel tube that can be deployed 90° to act as a speed brake.

Relief 15

Large-sized model for heavy-weight pilots. Its 10.6 m (34.8 ft) span wing has a wing area of 15.5 m² (167 sq ft) and an aspect ratio of 7.2:1. The pilot hook-in weight range is 76 to 120 kg (168 to 265 lb).

Specifications (Relief 13)

Data from Bertrand

General characteristics

Crew: one

Wingspan: 10.4 m (34 ft 1 in)

Wing area: 12.8 m² (138 sq ft)

Aspect ratio: 8.4:1