Schneewittchen is designed to fulfill the requierements of LTF-L, a class of very light airplanes with up to 120 kg empty weight. The requierements are quiet stringent, including not only the extremely low empty weight, but also a very low stall speed below 55 km/h (corresponds to 30 kn or 34 MPH). With the all-wing concept, Schneewittchen suits very well this class. To keep the weight as low as possible, I decided to use an electric drive (for example a Geiger HPD 10), as accumulators do not count to the empty weight.
Data and specifications:
|Average chord:||1.5 m|
|Max. take-off weight:||240 kg|
|Est. empty weight:||95 – 103 kg|
|Best glide:||25 at 83 km/h|
|Lowest sink rate:||0,75 m/s at 64 km/h|
|Material:||mixture between carbon composite and wood|