GROUP BUILDS > Group Build: Tophe Twin Tail Tribute

Differently 141

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What would you do if it was a heli? Join the tips of the rotors?! :P


With intermeshing rotors, all is possible, side by side... :)  :wacko:  

According to "Le Trait d'Union" magazine (French branch of Air Britain) #213, the Hanriot HD-141 was a 1929 conversion of 4 HD-14, 4 HD-32, 4 HD-321.
According to this Hanriot HD-141 was built in 10 copies, including 8 from HD-321.
As it seems there is no HD-141 picture available anywhere, I am proud to present the very first one, the asymmetric HD-141HB Hémi-Biplan: half-biplane (biplane on starboard, no wing on port) but not monoplane. Why?! How?! Well, this was due to the incredibly powerful engine (130hp officially, maybe 180hp secretly!!!) providing a huge torque that needed counter-balance by lift on a single side.

(thanks to )

From the AN/ALQ-141 towed underwater system (kinda "submarine", Airborne Mine Counter Measures system), I may add… another what-if 141 airplane: A-141 Nalq, and its asymmetric twin: TA-141 Twinalq.

( thanks to )
You know what: I am a what-ifer…

Thanks to MartinH and to the Putnam book "Boulton-Paul aircraft since 1915", here is my P.141Z asymmetric-twin version of the VTOL Boulton-Paul P.141, dated 1960:

And at , our dear Overscan mentioned a Blackburn P.141 looking like a Phantom…


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