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The LS7 was developed as the successor to the LS4, one of the most successful gliders ever produced.. In a departure from the design philosophy of the LS4, Rolladen-Schneider set out to design the LS7 as an uncompromised competition machine, seeking the highest performance possible with the technology of the time.
General Motors LS7, a small-block V8 gasoline engine Rolladen-Schneider LS7 , a 1988–1993 German high-performance single-seat sailplane IM LS7 , a battery electric mid-size crossover
By the mid–to–late eighties the LS4 had lost its leading position in the Standard Class to new arrivals, in particular the excellent Discus from Schempp-Hirth.The LS7, in spite of its advanced design, did not recapture the lead and, with flagging sales, Rolladen-Schneider went back to the drawing board.
This is a list of gliders/sailplanes of the world, (this reference lists all gliders with references, where available) [1] Note: Any aircraft can glide for a short time, but gliders are designed to glide for longer.
The design of the LS4 was influenced mainly by the experience Rolladen-Schneider had gained with the LS2 and LS3 flapped gliders. Wolf Lemke returned to a double-tapered wing planform, giving it a larger area comparatively to the LS1 and LS2, and enlarged all control surfaces: the ailerons were elongated and brought further inboard and the tailplane span was increased.
The type consolidated Rolladen-Schneider's reputation for well rounded, easy to fly gliders that do well in any conditions, being known for its superb handling, tolerance of piloting technique and environment (turbulence, rain, contamination by insects) as well as for good glide ratios over a wide speed range.
This list includes any types which had 10 or more aircraft built or types which are important to glider development. All the gliders in this list can be found in the J2MCL web site with individual pages for each type. [1] This list does not include Motor glider types. (N.B. Some specifications are quoted with the wrong units!!)
Like the contemporary LS7, the ASW 24 overstretched the technology available at the time: it has excellent performance in the cruise but less so in the slow flight range. The higher-than-usual thermalling speed revealed itself a disadvantage in the typical competition gaggles , and its performance degrades somewhat when subject to turbulence ...