Zdeněk Hříbal with His Parents

The School called "na Santošce" (Prague)

Zdeněk Hříbal (the 3rd from the left) with His Family (1955)

Zdeněk Hříbal (1952)

Zdeněk Hříbal with His Parents (1952)

Zdeněk Hříbal with His Wife Anna (1963)

Zdeněk Hříbal in a Duplicating Room at a University

Zdeněk Hříbal (2015)

Zdeněk Hříbal (2015)

Jindřich Leinweber (2015)

Jindřich Leinweber (2015)

Jindřich Leinweber (Skuteč Aviation Club, 1956)

Jindřich Leinweber (the 2nd from the right, Vodochody, 1975)

L-39 Landing without Undercarriage

Jindřich Leinweber (1962)

L-159 (after 1990)

Letňany (1963)

Jindřich Leinweber Constructing A Hovercraft (1960s)

Jindřich Leinweber's Hovercraft (1970s)

L-39

Jindřich Leinweber's Hovercraft (1970s)

Jindřich Leinweber

Jindřich Leinweber

L-159B

L-159B Experimental Flight. Jindřich Leinweber in the Middle, Wearind a Black Pullover