Variously known as "Przasnicza", "Don Kichot", or "Don Quixote",
the J-1 was designed by Jaroslaw Janowski in 1967. It featured a single seat
enclosed cockpit, conventional (taildragger) landing gear, and a pusher prop
configuration. Wings were shoulder mounted and strut-braced, with a 13% thick
Clark "Y" airfoil and no flaps.
With the help of Witold Kalita, the prototype was constructed in Poland and
first flown on July 30, 1970. It weighed 286 lbs empty, and was constructed mostly
of wood with a steel tube frame and fabric covering. Wings were constructed with
one-piece ribs and a plywood covered leading edge "D-section". Power was provided
by a two cylinder 23 hp "Saturn 500B" engine which was also designed by Janowski
and constructed by S. Polawski.
The easy availability of the VW engine in the West prompted Janowski to redesign
the structure to support added weight and power. The wing span was slightly reduced
and the steel tube frame eliminated at this time. The resulting configuration was
designated the J-1B and could be constructed in either wood or composite
(foam & glass) versions.
Note:The J-1B was initially
designed in the
early 1950s. This plan-set is presented for educational
value only and does not convey a
serial-number authorization to construct an
aircraft. Should you decide to
construct the aircraft you must obtain
the hard-copy plans from any of the several distributors
of such, in order to obtain serial-number authorization
and access to kits, supplies, and support for your
project! |
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