Bréguet flying boat projects and prototypes

hesham said:
We know from all Breguet aircarft and project,from Type 1 to 900 (the missing 490),so if someone has this book,I want only to ask about Breguet 490,a project of 1940 ?,and thanks.
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I very much doubt that the book in question would have any projects in it. From the photos I've seen on eBay, it contains photos and info of aircraft that were actually produced. Here is the contents list:

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Does anyone know if the original "Breguet Short" (which was different from the Bizerte, notably its tail) ever received an inhouse designation? I am tempted to think it could have been the Type 520, but who knows? It could also have been the Type 490.

Bréguet Short Calcutta.jpg
 
Stargazer said:
Does anyone know if the original "Breguet Short" (which was different from the Bizerte, notably its tail) ever received an inhouse designation? I am tempted to think it could have been the Type 520, but who knows? It could also have been the Type 490.

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Hello,
It's the first Short Calcutta, bought by Breguet. It served as model for the production by Breguet under license.
Breguet had built 3 different models: Calcutta, Bizerte and Saigon.
 
PhR said:
It's the first Short Calcutta, bought by Breguet. It served as model for the production by Breguet under license.
Breguet had built 3 different models: Calcutta, Bizerte and Saigon.
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That's what I thought, too, but I was suggesting that perhaps Breguet gave their license-built Calcutta airplanes a model number for record purposes, and obviously the missing "490" seems the ideal candidate for it.
 
In January 1928, Breguet proposed a family of seaplanes:
- Breguet 340: flying boat with Short-type hull, 2 Lorraine 18Ka 650 hp, or 3 Renault 12Kg 550 hp, or 4 HS 12Ja 350 hp, or 4 GR 9Aa 380 hp
- Breguet 350: variant of Breguet 340, with 2 Lorraine 18Kd
- Breguet 360: military catamaran seaplane, full steel type with 3 engines
- Breguet 370: civil version of Breguet 360

I attach the Breguet 350 wind-tunnel model as example.
 

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PhR said:
In January 1928, Breguet proposed a family of seaplanes:
- Breguet 340: flying boat with Short-type hull, 2 Lorraine 18Ka 650 hp, or 3 Renault 12Kg 550 hp, or 4 HS 12Ja 350 hp, or 4 GR 9Aa 380 hp
- Breguet 350: variant of Breguet 340, with 2 Lorraine 18Kd
- Breguet 360: military catamaran seaplane, full steel type with 3 engines
- Breguet 370: civil version of Breguet 360
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Does that mean the designations 340-370 were reused later on? I have them for completely different types...
 
PhR said:
This is a possibility. This is not the only cases of known designations reused for completely different planes, such as Breguet 510 or 600 for example.
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Also Breguet 500.
 
PhR said:
There is no reason to think this.
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That's a logical expecting,but the question is,if this project was intended for civil use only or for also'
military role ?!.
 
hesham said:
That's a logical expecting,but the question is,if this project was intended for civil use only or for also'
military role ?!.
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As already discussed, what you call "logical" means nothing in the real world. If you do not have an evidence, it has no value.
 
PhR said:
As already discussed, what you call "logical" means nothing in the real world. If you do not have an evidence, it has no value.
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What about if it built,to use as a military concept ?.
 
PhR said:
- Breguet 340: flying boat with Short-type hull, 2 Lorraine 18Ka 650 hp, or 3 Renault 12Kg 550 hp, or 4 HS 12Ja 350 hp, or 4 GR 9Aa 380 hp
- Breguet 350: variant of Breguet 340, with 2 Lorraine 18Kd
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Dear Philippe,are these projects a military seaplanes or not ?.
 
From TU magazine,what was this ?, just idea or transferred into a concept !

At the beginning of 1938, Louis Bréguet announced the calculated characteristics of a transatlantic
seaplane capable of traveling 7,500 km in zero wind, with a specific consumption of 230 g per hp/
hour: PT 28,000 kg (engines 4,060 kg, glider 9,160 kg, fuel 11,200 kg, fixed load 1,700 kg, payload
1,800 kg, i.e. 8 passengers with luggage plus 800 kg of station). The 4 engines develop 4,300 hp
at takeoff. The wing has a 38 m span for a surface area of 175 m2. Average speed over the
crossing: 275 km/h.
 
What was this Breguet 675 ?.
 

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PhR said:
In January 1928, Breguet proposed a family of seaplanes:
- Breguet 340: flying boat with Short-type hull, 2 Lorraine 18Ka 650 hp, or 3 Renault 12Kg 550 hp, or 4 HS 12Ja 350 hp, or 4 GR 9Aa 380 hp
- Breguet 350: variant of Breguet 340, with 2 Lorraine 18Kd
- Breguet 360: military catamaran seaplane, full steel type with 3 engines
- Breguet 370: civil version of Breguet 360

I attach the Breguet 350 wind-tunnel model as example.
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Interesting....it looks like that series was partially reused for the 27 offspring. See the Hartmann document.
 

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So I have a small article from L'Aerophile in 1932. It mentions Bizerte as military, Saigon as civil, and Dakar as mailplane. What do we know about the Dakar? Is it a version of the Bizerte? I'm tempted, but not without confirmation.
 

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Bazinga said:
Based on the discussion so far and the articles I have, I have come up with this list. Some of them are inferences, but there seems to be no alternative reality to what we know. The Dakar is most likely the 540 mentioned by Stephane as it is the only Saigon/530 derivative mentioned. The engines are almost sure to be the Hispanos of the Saigon. There is no point in re-engine it. The Saigon was already hot and high, and the lesser weight would lead to a longer range.
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About Dakar.
 

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So it was earlier and they were 650hp Hispano 12Nbr and not the 785hp Hispano 12Ybr....so the Dakar and Saigon were probably at the same time on the drawing board and the Saigon made it to construction. I will remove my previous post as it is now misleading with this new evidence. From the typography of your image I presume it is from the Hartmann document. I recommend you mention your sources. Simple snapshots are not credible.
 
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Bazinga said:
So it was earlier and they were 650hp Hispano 12Nbr and not the 785hp Hispano 12Ybr....so the Dakar and Saigon were probably at the same time on the drawing board and the Saigon made it to construction. I will remove my previous post as it is now misleading with this new evidence. From the typography of your image I presume it is from the Hartmann document. I recommend you mention your sources. Simple snapshots are not credible.
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It's TU issue 172.
 

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