Benes-Mraz Ве.50 и Ве.51 Beta Minor
Кроме того, на базе Ве.51 был разработан самолет Benes-Mraz Ве.550 Bibi, отличавшийся размещением членов экипажа (бок о бок) и с облегченной конструкцией крыла.
Flight, November 1936
THE PARIS AERO SHOW
CIVIL TYPES in PARIS
On the same stand as the Praga E.210 is a little low-power monoplane, the Bibi-Be 550, with side-by-side seating for pilot and passenger. Similar types did well in the Douze Heures d'Angers. The machine is the product of Benes-Mraz, of Chochen, Czechoslovakia. The designer is Mr. Benes who, it may be remembered, was co-designer with Mr. Hain in the old days when the Avia machines were produced by Milos Bondy. The Bibi-Be 550 is stated to do rather more than 100 m.p.h., and to have a range of 465 miles.
The Benes-Mraz Be.550 "Bibi" Two-seat Cabin Monoplane (60 h.p. "Walter "Mikron" engine).
Benes Mraz - яркий представитель еврейских "примусов"
On the Czech stand the tail of the Letov general-purpose machine is in the foreground. Beyond it is the twin-pusher Praga E.210, and finally the Benes Bibi-Be 550
Dual control is provided in the cabin of the little Benes Bibi-Be 550. There is side-by-side seating and a roomy luggage locker.