Lado-Borkowsky « Helicoplan »

[Tophe]

In the Trait d'Union #217 (Sept-Oct 2004) : "Jean M. Lado-Borkowsky presented in 1936 a new concept: the Helicoplan, to decrease the take-off/landing speeds, or at unchanged speed to increase take-off maximum weight. It uses 2 lifting propellers (rotors?) under the wing at a distance, while the wing stays the main lifting device, during normal flight only the wing is used. The inventor demonstrated that the lifting propellers should be aft of the wing."
On the picture: I is 4-engine flyingboat total 2,800hp. II is 2-engine twin-fuselage plane total 700hp. III is 2-engine twin-boom total 500hp. All of them are monoplanes, II & III seem to have horizontal pylons for the solidity.

 

[Stargazer]

Breathtaking indeed, Tophe, thank you so much for all the recent contributions!

In the Trait d'Union #217 (Sept-Oct 2004) : "Jean M. Lado-Borkowsky presented in 1936 a new concept

This design owes A LOT to Sikorsky's S-36/-38/-41 series... Do these pics depict the "Helicoplan" or was it a whole different thing altogether?

 

[Tophe]

[quote author=hesham]And for Helicoplane,I think it looks like this;
http://www.secretprojects.co.uk/forum/index.php/topic,9966.msg92822.html#msg92822[/quote]

Thanks for the Helicoplane patent link.
For Hanriot projects, well, this famous manufacturer is not obscure at all, maybe I could create a separate topic, checking if there is not already one.

 

[Tophe]

This design owes A LOT to Sikorsky's S-36/-38/-41 series... Do these pics depict the "Helicoplan" or was it a whole different thing altogether?

I will check, Stéphane. I may send you scans of the (French) text, if you are more expert than me on this subject that I don't know much.

 

[Tophe]

Here is what I sent to Stargazer, hoping he will expertize this:

 

[hesham]

And from l'Aeronautique 1936.

 

[hesham]

Hi,

I forget this thread,so I change the other one.