The C.N.N.A. Projects & Prototypes Post WWII

[hesham]

From, Historia da Construcao Aeronautica no Brasil &
Enciclopedia de Avioes Brasileiros;

the HL-10 was four-engined transport aircraft (may be related to Boeing-307),
the HL-11 was single-engined version of HL-8,the HL-12 was transport aircraft,
the HL-15 jet trainer aircraft Project and the HL-9 was a twin engine low-wing
transport Project,based on HL-6B Caure.

One of the last projects of the Factory engineers
Brasileira de Aviões (RJ), the HL-14 effectively reached
be built and tested. It was a single engine, with a wing
low and fixed landing gear, tricycle, with two seats
side by side. Its lines reminded a little of the
“Uirapuru”, manufactured years later by Aerotec. Was
constructed of wood, with external counter covering.
board and screen. American-made engine of 4
cylinders, actuating helix, wooden blade. There is no further information about the characteristics or the
performance of the HL-14, nor about its fate.

Status: 1 copy built.

 

[Petrus]

The caption for 5.png reads "the artist's concept of the HL-15 light fighter". Indeed the plane seems to be a single seater, so it would be a fighter rather than a trainer. Very interesting. Any info on its engine, armament, dimensions, performance?
Piotr

 

[fortrena]

The following may be of interest, once put through Google Translate... https://ninhodeaguias.blogspot.com/2015/08/Hl7aHl14.html

 

[hesham]

@Moderators

What about merging this thread and that: https://www.secretprojects.co.uk/threads/need-help-for-c-n-n-a-projects.2961/ ?

Piotr

My dear Petrus,

That topic for pre-war,and this one is for post-war.

 

[Petrus]

The caption for 5.png reads "the artist's concept of the HL-15 light fighter". Indeed the plane seems to be a single seater, so it would be a fighter rather than a trainer. Very interesting. Any info on its engine, armament, dimensions, performance?
Piotr

At https://ninhodeaguias.blogspot.com/2015/08/Hl7aHl14.html there is an article on the C.N.N.A. projects, including a brief remark on the HL-15:

O HL-15 foi o último avião projetado pela equipe de engenheiros do Escritório Técnico de Aeronáutica (ETAE), oriundos da CNNA, que encerrou suas atividades em 1948. Foi concebido como um compacto jato de combate, inspirado do norte-americano F-80 Shooting Star, embora com estrutura de madeira em vez de metal. O projeto foi levado ao Ministério da Aeronáutica, que o recusou, pois não havia interesse oficial de investir em desenvolvimento de novos aviões. Com isso, o projeto foi abandonado e as atividades do ETAE foram encerradas.

Google translate:

The HL-15 was the last aircraft designed by the team of engineers from the Technical Office of Aeronautics (ETAE), from CNNA, which ended its activities in 1948. It was conceived as a compact fighter jet, inspired by the North American F-80 Shooting Star, albeit with a wooden frame instead of metal. The project was taken to the Ministry of Aeronautics, which refused it, as there was no official interest in investing in the development of new aircraft. As a result, the project was abandoned and ETAE's activities were terminated.