Roller shutter cutter LS7
| LS7-WL | |
|---|---|
|
|
| Type: | Glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
December 1987 |
| Number of pieces: |
164 |
The LS7 is a standard class single-seat glider .
history
The LS7 was designed by Rolladen Schneider with the aim of being able to offer a competitive LS4 successor for the standard class . The first flight of the LS7 took place in December 1987, series production started in 1988. As part of product maintenance, winglets were available from 1991, which significantly improved the climbing performance in thermals. Compared to the competition model Schleicher ASW 24 , however, the competition successes looked rather modest. Production was stopped in 1993 after 164 copies.
construction
The LS7 has a smaller wing compared to the LS4. The wing area is 9.73 m², as much as the LS1 . The LS7 has a newly profiled double trapezoidal wing in KfK sandwich construction. The ailerons and elevator are made of Kevlar . The fuselage and fin are made of GRP . The glider index is 106, with winglets 107.
Technical specifications
| LS7 | |
|---|---|
| span | 15 m |
| length | 6.66 m |
| height | 1.33 m |
| Wing area | 9.73 m² |
| Wing extension | 23.1 |
| Empty weight with minimum equipment | approx. 235 kg |
| Max. Water ballast | 170 kg plus 5.5 kg in the rear tank |
| Max. Take-off mass | 486 kg |
| Max. Wing loading | 49.95 kg / m² |
| V NE | 270 km / h |
| V A | 190 km / h |
| Slightest sinking | 0.63 m / s |
| Glide ratio | approx. 43 |
See also
Web links
- Type certification of the LS series - EASA-TCDS-A.095 (PDF; 409 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 .
- Ludwig Haslbeck: LS7 - an often misunderstood piece of jewelry. DG Flugzeugbau GmbH, accessed on August 12, 2009 : "Good-natured, agile with good performance"
- 3-sided view. (PDF; 366 kB) DG Flugzeugbau GmbH, accessed on August 12, 2009 .
