|LS-8t - High Performance Standard Class Sailplane|
To be back again on the contest scene and to win over more top pilots, we had to think about our range of standard class sailplane.
Twist the performance screw again sounds very good. Viewing the scene revealed no guarantee for success by using new wing sections, derived by ingenious computer calculations and theoretical improvements of performance. Handling in turbulent air, manoeuvrability, sensitivity to rain and insects and last but not least gain in performance cannot be predicted.
So, where should we twist?
Wolf Lemke had the stirring idea. He remembered earlier flight tests with the LS6 and recommended further comparison flights with the LS6 and LS7 models, but under different conditions. We increased the wing angle of incidence compared to the fuselage to yield the correct in-flight wing position for thermalling and good take-off handling. We used the unmodified LS-6c flapped wing plus winglets for this optimum positioning. This comparison met our expectation completely. Differences in straight flight were promising. This modified LS6 could fly slower at a lower rate of sink and was advantageous in the range of best glide angle. To make sure that this modification was good enough to justify the otlay for the new model range, we decided to test this LS6 in a standard class contest with flaps fixed in one position. This plane caused a stir. It was superior compared to other standard class sailplanes and even the weight penalty of the flapped wing, resulting in about by 3-4 kg /m² increased wing loading, yielded no disadvantage even in weak conditions. The same impression resulted during the German Championships at Neustadt-Glewe. New for LS-sailplanes are the integral wing ballast tanks. Automatic coupling of all control systems is state of the art.
Standard Equipment for LS8t
a list detailing the options please go to the list contained in this web-page***
Max. wing loading
Max. all up weight
Max. speed (Vne)
Min. speed (stall)
about 66 Km/h
about 66 Km/h