Piana Canova Airplanes and Projects

[!Mark]

Yes,he designed a jet aircraft,

https://www.secretprojects.co.uk/threads/piano-canova-aircraft.51013/

Wow you just created that thread last month, what a coincidence lol.

 

[!Mark]

S.15 sailplane https://www.secretprojects.co.uk/threads/piano-canova-aircraft.51013/post-881554
Man now we have 2 different Flaminio Piana Canova threads

 

[!Mark]

Re: Italian all-wing aircraft

The plane posted by Hesham is one of the numerous projects by Piana-Canova, who developed the rhomboidal wing. It flew only in sailplane form, but it flew very well. Projects span from light sportplanes to huge boatplanes and bombers. During the mid-30s Piana-Canova had some exchanges with Alessandro Marchetti that went as far as a brief proposal for a rhomboidal-wing version of the S-84.

I read somehere that, in the middle of the 30s, the designer Flaminio Piana-Canova was in contact with Alexandro Marchetti, from Savoia-Marchetti company, and together they briefly projected, under the designation SM-94, a tri-engine bomber equipped with a rhomboïdal wing.

But I have not found any other information confirming this project and its related designation.

Any other info on this rhomboidal wing Piana-Canova and Marchetti bomber? Maybe the design would have been similar to one of those we posted above?

 

[hesham]

Canova/SIAI S.84 during the mid of 1930s, Piana-Canova had
some exchanges with Alessandro Marchetti that went as far as
a brief proposal for a rhomboidal-wing version of the S-84,and
could be used as military aircraft,project only.

 

[!Mark]

@Skybolt should tell us more about it.

Reading his comment again, it suggests there were different proposals analyzed by Piana-Canova and Marchetti

 

[riggerrob]

Canova was on to something.
Fast forward to 1993 and Barnaby Wainfain proved it with his single-seater Facetmobile. A two-seater variant of the Facetmobile is is the later stages of construction in 2026.
Those sharply-swept (say 45 degrees) leading edges create massive wing-tip vortices at high angles of attack, but they meet in the middle and cancel each other out.
The second advantage is the long root chord which vastly improves the Reynolds number, increasing lift, etc.
A third advantage is the long root chord helps streamline the pilot.
A fourth advantage is the long root chord distancing the elevators a long way from the center-of-gravity, improving both stability and control. Look at the latest proposals for 6th generation stealth fighters (see Sukhoi 57) with their lamda planforms.

 

[!Mark]

Canova was on to something.
Fast forward to 1993 and Barnaby Wainfain proved it with his single-seater Facetmobile. A two-seater variant of the Facetmobile is is the later stages of construction in 1026.
those sharply-swept (say 45 degrees) leading edges create massive wing-tip vortices at high angles of attack, but they meet in the middle and cancel each other out.
The second advantage is the long root chord which vastly improves the Reynolds number, increasing lift, etc.
A third advantage is the long root chord helps streamline the pilot.
A fourth advantage is the long root chord distancing the elevators a long way from the center-of-gravity, improving both stability and control. Look at the latest proposals for 6th generation stealth fighters (see Sukhoi 57) with their lamda planforms.

Yes he tested every wing shape in the wind tunnel and calculated that rhomboidal wings allowed aircraft to reach 1.26x higher speeds.

You are right, next generation jet fighters look like they are going for lambda wings or diamond wings which are an evolution of rhomboidal wings essentially.
The Mcdonnel Douglas YF-23 had rhomboidal wings and was almost adopted by the Air Force.

Now I really want to see what Piana Canova's rhomboidal wings jet plane proposal looked like lol

 

[hesham]

From this book.

 

[Richard N]

PIANA CANOVA, Flaminio

Auction: SW1018 - The Collectors' Series
Lot: 1032

Aeronautical Memorabilia – PIANA CANOVA, Flaminio. An exceptional collection of blueprint copies of technical aircraft drawings by the Milanese designer. Detailed and to scale; some bear original handwritten signatures on the copy itself. Drawings of models C7, C8, C13, C14, and others. Approximately ten large-format blueprints (approx. 70 x 40 cm), folded. A pencil drawing on tracing paper of the S15 glider. Numerous polar diagrams of airfoil profiles and other components of Piana Canova designs, prepared by the Royal School of Engineering in Turin. Reports and two autograph letters. An original autograph report titled "Ricerche sull'effetto C" (Research on the 'C' Effect), featuring sketches, diagrams, and autograph corrections. Photographs.

Estimate
€350

https://www.spink.com/lot/SW1018001032

 

[!Mark]

Already posted here in higher quality

https://www.secretprojects.co.uk/threads/piana-canova-aircraft.51013/post-881554

These 2 threads need merging