Mauboussin Type 40 Hémiptère

[cluttonfred]

Hi ho, all, I've been away from this forum for a while. I am working on a concept for a homebuilt aircraft not unlike the 1936 Mauboussin Type 40 Hemiptère, a low front wing, high rear wing tandem design. I am looking for articles, analyses, etc. on this design, in English or French. I am particularly hoping to identify the airfoils used in the design. Here is a photo and an article from the FLIGHT archives to show you what I mean. Thanks and regards, Matthew

 

[mz]

The front foil looks like a Fauvel one b? And the rear looks like NACA 00 series.

Here:
http://www.nurflugel.com/Nurflugel/Fauvel/e_biograph.htm
"Still in 1928, toward the end of the year, Charles Fauvel put the finishing touches of a small light single-seater, the Peyret-Mauboussin PM-10" so at least Fauvel built one P-M plane.

 

[cluttonfred]

True, it could be a Fauvel or an Abrial, but I don't know how much faith I should put in that tiny little sketch. I am hoping to find a reference of some kind that actually identifies the airfoils. Cheers, Matthew

 

[Jemiba]

I've attached the sparse information given by Christian Castello "Planeurs & Avions" :

 

[cluttonfred]

Waking the dead, I know, but I am still hoping to find the exact airfoils and other technical details for the Mauboussin tandem. Perhaps in contemporary (late 1930s) French aviation magazines? Any help would be much appreciated. Cheers, Matthew

 

[cluttonfred]

Here are some new (to me) pics from a contemporary issue of Les Ailes!

 

[cluttonfred]

Here are a few more treasures from my recent visit to the research library of the Musée de l'Air et de l'Espace at Le Bourget in Paris, including the original factory brochure for the little Mauboussin tandem. Cheers, Matthew

 

[Stargazer]

Fantastic!!! Thank you so much for sharing this, Matthew!

 

[cluttonfred]

And for the cherry on top of the cake, the museum just sent me a scan of a previously unpublished (as far as I know) period photo of the Mauboussin Type 40 Hémiptère from the files at Le Bourget. Cheers, Matthew

 

[Stargazer]

Very nice, Matthew! Thanks a lot for this.

 

[cluttonfred]

By the way, as a one-off prototype, this might actually be more correctly filed under "Early Aircraft Projects."

 

[dan_inbox]

By the way, as a one-off prototype, this might actually be more correctly filed under "Early Aircraft Projects."

If this thread is corrected, the spelling of Hémiptère should be corrected as well to have both its diacritical accents or none. One simply does not make sense.
Hemiptere or Hémiptère, but neither Hemiptère nor Hémiptere.

title corrected

 

[Jemiba]

Absolutely right, thanks for the clue !

 

[cluttonfred]

Thanks for the move and the corrected spelling. And yes, Jens, on the choice of subforum I would argue that a proof-of-concept aircraft intended to pave the way for series production of some new innovation (whether it panned out or not) is exactly the kind of one-off prototype that should be includeed in our discussions.

Well, "...Prototypes that didn't enter series production may also be appropriate at the discretion of the moderators..."
As said in those articles, the Hemiptère wasn't just a concept, or experimental aircraft, but should lead to a series
of light, affordable and, above all, safe aircraft.

 

[dan_inbox]

Tank you, Jens.

 

[fightingirish]

In the French magazine Le Fana de l'Aviation, No.543, February 2015, there is an 4-page article about the Mauboussin Type 40 Hémiptère.

 

[avion ancien]

Must look out for that. The February issue of le Fana wasn't in the Maison de la Presse when I went in on Friday. I'll check again next week.

 

[cluttonfred]

While I do get to France from time to time, it's a long way from Nairobi and I don't plan to go anytime soon. If anyone would be willing to scan and send me a copy of the article, I'd be very grateful. I recently purchased a DVD with scans of the original Mauboussin Type 40 Hémiptère plans and I am always on the lookout for more info. Merci!

 

[Retrofit]

Done Matthew, pls check your mailbox.
The article is by Christian Ravel who also published an article in the revue of "The Musée Régional de l'Air" on the Peyret Taupin retaining quite the same tandem wings scheme.

Photos copyright: GPPA.

 

[cluttonfred]

Got the articles, thanks very much for feeding my addiction for oddball French tandem wing aircraft!

 

[Silencer1]

From the "new" company site