The CNNA HL-6 was a civil
trainer aircraft
A trainer is a class of aircraft designed specifically to facilitate flight training of pilots and aircrews. The use of a dedicated trainer aircraft with additional safety features—such as tandem flight controls, forgiving flight characteristi ...
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 1943.
Development
The HL-6 was a low-wing
cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...
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 ...
of conventional configuration. It employed a fixed
tailskid undercarriage. The student and instructor sat in tandem, in open cockpits.
Variants
*HL-6 - prototype. One built
*HL-6A - similar to prototype but with more powerful engine. Five units were constructed in 1943.
*HL-6B Cauré - Similar to HL-6A but with more powerful engine
Lycoming O-290C, and optional enclosed cabin. 39 units were constructed in 1944.
Specifications (HL-6B Cauré trainer)
References
Further reading
*
External links
São Paulo Technical Museum website{{CNNA Aircraft
HL-6
1940s Brazilian civil trainer aircraft
Low-wing aircraft
Single-engined tractor aircraft