Ho X "Piernífero" ("Leg-trained")
Ho X "Piernífero" or "L' Alita" was projected in 1949 with the amateur
builder - flyer in mind, to be inexpensive and with flight characteristics
similar to those of the Grunau "Baby".
It was foreseen that the building of "L' Alita" would
demand 2000 hours of man work for an amateur, and that time would be reduced
to a half with the use of adequate tooling and trained workmanship.
In such circumstances a Grunau "Baby" would demand 5000 hours of
man work for its building.
regard to the flying, it could takeoff with a short run of the pilot if
he had a hill at reach and a 15 km/h wind. It could also be towed by car
or plane, but for that case a skid was provided to ease the takeoffs.
structure was only one piece, with plywood ribs and stressed skin 0.8 mm
thick. The main spar was laid out at 45 degrees from the ribs, and it had
a central hole where the pilot's body was allocated. He was supported by
means of a harness and laid on a board inside the wing when the takeoff
first piernífero (Ho X) was ended in july of 1952 by Rogelio Bartolini,
Reinaldo Picchio and Roberto Tacchi, whose experiences we transcribe ("Horten
X flight testing") as published in "Vuelo Silencioso" magazine of December
The second (Ho Xb) was built by Heinz Scheidhauer, with
a wingspan of 10 meters, but it was never covered.
third piernífero (Ho Xc) was projected, but it was never built.
|Maximum glide speed
|Best glide ratio
||1:18 a 78 km/h
||1:20 a 60 km/h
||1:30 a 50 km/h