Ulita Industries in Sheboygan, Wisconsin designed small non-rigid
airships for several years. Headed by Thomas Berger Ulita
developed several utility airships including the LUA-1 and semi-rigid
LUA-2 projects. Their most successful and appealing design, however, was,
in my opinion, the UM 10-23 blimp projected to be certified in the ARV
air recreational vehicle category.
The UM 10-23 can carry two persons, is powered by twin three
cylinder König engines and features vectored thrust.
Besides this well thought out undercarriage, the UM 10 has a revolutionary
tail fin configuration. The rudders form an inverted 'V' that is closed off
by a horizontal elevator plane forming a closed box. This design
facilitates the mounting of the rudders during or after inflation.
In addition, the box construction provides excellent rigidity to
the tail fins resulting in more precise movement of the rudder surfaces.
Unfortunately the Company seems to have disappeared without leaving
any kind of marks.