Roller shutter cutter LS6
|Roller shutter cutter LS6|
|Type:||Glider of the FAI 15-m and 18-m class|
1984 to 2003
|Number of pieces:||
The Rolladen Schneider LS6 is a single-seat glider of the FAI 15 m and 18 m class. It was manufactured by the glider manufacturer Rolladen Schneider from 1984 to 2003 . Their gliding index ranges from 111 to 117.
In February 1983 the successor to the LS3 flew for the first time. On March 16, 1990, the LS6-c flew for the first time with a wingspan of 17.50 meters, of which 35 were built in the first year.
Technological and aerodynamic findings from the experience with the LS3 and LS4 determined the design of the LS6. The LS6 was a completely new development.
The wing was designed as a double trapezoid with a modified Wortmann profile. This only shows a thickness of 13.2 percent. The LS6 was the first to use carbon fiber straps. Only the wing area remained as with the LS3 at 10.50 m². The fuselage became a bit narrower than the LS4. The hood opens forward together with the instruments. Flutter problems occurred temporarily, which made the use of a damper necessary. Later, the use of carbon fibers in the wing shell and further structural changes made it possible to dispense with the damper (LS6-b). To improve its high-speed flight characteristics, the LS6 is equipped with continuous flaps (flaperons).
- LS6 - can be converted to the LS6-a by installing (TM 6005) a fin water tank.
- LS6-a - revised ballast system with larger water ballast tanks and optional rudder tank, elevator made of aramid- paper sandwich.
- LS6-b - (1987) lighter and stronger wing shell made of a fiberglass-carbon-fiber-foam sandwich, the original carbon fiber-aramid elevator from the LS6 returned.
LS6-c - exchangeable outer wings allow a span of 15 to 17.5 meters, but this made a larger rudder necessary, which lengthened the aircraft by 14 cm, the cockpit was reinforced for increased crash safety and the permissible weight of non-load-bearing parts increased, automatic rudder connections were introduced, control and ballast systems revised and brought up to date.
- LS6-c18 - winglets for 18 m span, water ballast was limited to 100 liters and the top speed was increased to 280 km / h.
- LS6-18w - winglets for 18 m span, double water bag system with 140 liter capacity, optional 15 m winglets.
The LS6 has achieved very good results at world championships: 1985 1st and 2nd place in Rieti (Italy), 1st–3th place in Benalla (Australia) in 1987, 1st– 4th place in Uvalde (USA) in 1991 and 1st and 2nd place in 1993 Borlange (Sweden).
|Parameter||LS6, LS6-a, LS6-b, LS6-c||LS6-c||LS6-c18, LS6-18w|
|length||6.66 m||6.80 m|
|span||15.0 m||17.5 m||18.0 m|
|Wing area||10.5 m²||11.31 m²||11.42 m²|
|Empty mass||260 kg||275 kg||280 kg|
|Takeoff mass||525 kg|
|Glide ratio||44 at 97 km / h||49 at 97 km / h||50 at 97 km / h|
|Slightest sinking||0.58 m / s at 85 km / h||0.5 m / s at 85 km / h|
|Top speed||270 km / h||280 km / h|
- Type certification of the LS series - EASA-TCDS-A.095 (PDF; 410 kB)
- Georg Brütting : The history of the LS aircraft. DG Flugzeugbau GmbH, archived from the original on December 15, 2010 ; accessed on March 16, 2019 .
- Number of all LS aircraft ever built. (PDF; 126 kB) In: dg-flugzeugbau.de. DG Flugzeugbau GmbH, accessed on August 11, 2009 .
- 3-sided view. (PDF; 490 kB) DG Flugzeugbau GmbH, accessed on August 12, 2009 .
- ↑ Wolf Lemke: Technical Communication TM 6005. (PDF; 140 kB) In: dg-flugzeugbau.de. Rolladen Schneider Flugzeugbau GmbH, April 25, 1986, accessed on January 29, 2018 .
- ↑ a b c d Thomas Bergmann: LS6. In: gliding. 2007, accessed January 29, 2018 .
- ↑ EASA.A.095 LS Sailplanes Type-Certificate Data Sheet. (PDF; 410 kB) EASA , accessed on January 29, 2018 (English).