The CNNA HL-1 was a light utility aircraft developed in
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
in 1940. It was a high-wing strut-braced
monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes.
A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...
with fixed
tailskid undercarriage and seating for two persons in tandem.
Development
The design was developed by Henrique Lage as a two-seat cabin monoplane, bearing a strong resemblance to the contemporary
Piper Cub
The Piper J-3 Cub is an American light aircraft that was built between 1938 and 1947 by Piper Aircraft. The aircraft has a simple, lightweight design which gives it good low-speed handling properties and short-field performance. The Cub is Pi ...
. It was produced by the ''Cia Nacionale de Navegaçao Aéreo'' (CNNA) as the HL-1. Most of the aircraft were purchased by Brazilian aeroclubs, funded by the government's National Aviation Campaign (''Campanha Nacional de Aviação'') to train pilots for military service. Production continued until 1950 and a small number were exported to neighbouring countries.
Variants
;HL-1A
:Eight were built.
;HL-1B
:Main production version with smaller fuel tank than original design.
;HL-1C
:One prototype constructed
;HL-5
:Floatplane version. One prototype constructed.
Specifications
References
Further reading
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External links
São Paulo Technical Museum website
{{CNNA Aircraft
HL-1
1940s Brazilian civil utility aircraft
High-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1940