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Giovanni Pegna flying wing

hesham

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Hi,

http://www.abovetopsecret.com/forum/thread320129/pg1
 

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Skybolt

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More than one project, actually. Done in Piaggio.
 

Retrofit

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Skybolt said:
More than one project, actually. Done in Piaggio.

Hi, Skybolt, Hesham,

Any more details available on this flying wing?

Thanks
 

hesham

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Skybolt said:
More than one project, actually. Done in Piaggio.

Thank you my dear Skybolt,

and sorry for my late in answer,and I heard that the Piaggio P.18 was a project
of bomber,the friend who give me this info never mention anything about its
source,and do you mean it (P.18) ?.
 

Skybolt

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Ummm, I don't think the flyiing wing ever received a P.number... I have some more details, let's me dig them up... (I sent them to Lark some months ago and since then I lost track of them ...)
 

lark

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Sky...
There's a sketch of the Pegna flying wing in your
AeroFan No.74--July/September 2000.
Maybe it helps your search ;)
 

Skybolt

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Still looking for what I have (in the manuscript I have on Pegna's projects the table with flying wings is missing, grrrr). Anyway, here is what I can say out of memory:
the illustrated project is from 1928, it was a seaplane BOMBER with a deep V-shaped hull that doubled as a ventral fin, there were two lateral floats, retractable in the wings, the engines were three, buried in the wings and fuselage. Tested as a model in the windtunnel. Preliminary design only. Piaggio didn't have the structural skills to build it (nor Pegna had the structural engineering experience to design it...). Dimensions were: span m 39.5, lenght m 12.6, height m. 3,65. The preceeding year, 1927, Pegna designed a larger flying wing, even less feasable. It was a transport seaplane with two unspecified engines in wing nacelles and wing floats under them. Span m. 80.0, lenght m 23.5, height m. 12.
 

Retrofit

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Skybolt said:
Still looking for what I have (in the manuscript I have on Pegna's projects the table with flying wings is missing, grrrr). Anyway, here is what I can say out of memory:
the illustrated project is from 1928, it was a seaplane BOMBER with a deep V-shaped hull that doubled as a ventral fin, there were two lateral floats, retractable in the wings, the engines were three, buried in the wings and fuselage. Tested as a model in the windtunnel. Preliminary design only. Piaggio didn't have the structural skills to build it (nor Pegna had the structural engineering experience to design it...). Dimensions were: span m 39.5, lenght m 12.6, height m. 3,65. The preceeding year, 1927, Pegna designed a larger flying wing, even less feasable. It was a transport seaplane with two unspecified engines in wing nacelles and wing floats under them. Span m. 80.0, lenght m 23.5, height m. 12.

GREAT...
Skybolt, thank you very much.
 

hesham

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lark said:
Sky...
There's a sketch of the Pegna flying wing in your
AeroFan No.74--July/September 2000.
Maybe it helps your search ;)

Has anyone that sketch ?.
 

ermeio

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hesham said:
lark said:
Sky...
There's a sketch of the Pegna flying wing in your
AeroFan No.74--July/September 2000.
Maybe it helps your search ;)

Has anyone that sketch ?.
I have that issue of Aerofan but it seems there is no such sketch there...
It may be that the issue of Aerofan is another one
My collection is rather scattered around, so I am not able to check which one.
er me
 

hesham

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Thank you Ermeio very much,

and I hope to can get it,maybe this site will help you;

http://www.aeroflight.co.uk/?s=aerofan
 

Schneiderman

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I find this all rather confusing. Pegna was never slow to patent and/or publicise his work but I can find nothing regarding a flying boat design of this type. Was it really from 1927/28? At that time he was concentrating most of his efforts on a variety of hydroplane configurations.

Curiously Skybolt's description sounds very similar to a design patented by Roxbee Cox and Coombes in 1937.
 

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hesham

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Hi Schneiderman,

I know Roxbee,and I opened old topic for him,but Pegna design was completely
different;

http://www.secretprojects.co.uk/forum/index.php/topic,5156.0.html
 

Schneiderman

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Possibly, but until I see Pegna's work I can't be sure how similar or different they may be. Do you know the source of the image in your first post? It is obviously from an Italian magazine but which one and what date?
 

hesham

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To be honest,I don't know from which book or magazine,but I remember it was from 1933.
 

Schneiderman

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Nothing in L'Ala D'Italia, L'Aerotechnica or Rivista Aeronautica for 1933.
It just serves to emphasise how important it is to give a good reference for you posted material. As in palaeontology and archaeology an item without context is of greatly diminished value.
 

lark

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It's impossible to find the Pegna flying wing via the Aerofan article index.

The 2 view scetch with dimensions is a part of an article about Piaggio: Piaggio 1936 Year of transition.

The drawing is at the bottom of page 215. The issue for this drawing and page is
Aerofan : Anno18 N.75 Oct-Dic. 2000
 

Schneiderman

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Does that mean that these Pegna designs are from 1936 and not 1927/28 as Skybolt suggested?
 

lark

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In fact not. The 2-view is part of a larger drawing showing a 1941 airliner concept.
On the drawing is noted tutt' ala (1928)...
There is no further info about the wing in the article.
I send you a scan tomorrow.

Remark : the pages of the mag. are dated Aerofan 74 -July-Sept 2000 wile
te cover is Aerofan75- Oct-Dec. 2000.
It seems that there was a 'construction error' in the print shop at the time.
(hence the confusion with my former note)
 

Retrofit

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Aerofan year 18 n°75, Oct-Dec 2000 page 215.
Part of an article called "Piaggio 1936, the transition year" but the "All Wing" project is dated 1928.
Note: 1936 is the year when Giovanni Pegna left Piaggio to be replaced by Giovanni Casiraghi as Technical Director.
Page 222: Interesting photo of "An undated, unidentified wooden mock-up under construction at Piaggio".
Any clue?
 

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hesham

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Via my dear Lark,

here is a clearer view to it.
 

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