Maybe that’s the reason why you can hardly find any information
“Experiments with in-wing flotation bags for use in ditching were cancelled after some bags accidentally opened in flight, causing crashes.”
http://www.aerofiles.com/_grum.html

“But the Martlet, bred to the sea, had special immersion switches which tripped in the water and operated floatation bags in the wings. My switches worked and we salvaged the plane”
-Wings on my sleeve-

http://www.navalaviationmuseum.org/nnam-wp/wp-content/uploads/2017/01/sb2u3p8.jpg
http://www.navalaviationmuseum.org/history-up-close/vought/

Douglas TBD-1 “Devastator”
https://tighar.org/Projects/Devastator/photographs/29bags.jpg

Not military but…
https://books.google.de/books?id=yN8DAAAAMBAJ&pg=PA177&lpg=PA177&dq=in-wing+flotation+bags&source=bl&ots=YCGJ568Rn_&sig=woC_-hU7U5i7N_KwHcxiaHrOaC0&hl=en&sa=X&ved=0ahUKEwjDu6nm7frRAhWsC8AKHe7UCI4Q6AEIJjAC#v=onepage&q=in-wing%20flotation%20bags&f=false

I suspect – but I can’t say as I haven’t yet bought it – that the pre-WW2 production is covered by Roger Gaborieau in ‘L’Aviation Légère en France 1920-1942’. I’d also suggest, Jan, that you’ll find much of the information that you’re seeking in ‘Les Ailes’. A good number of runs of the pre-WW2 years of this periodical can be accessed online at http://gallica.bnf.fr/ark:/12148/cb326846379/date.r=%22cylindres+en+X%22.langFR. Its search engine is very effective and if you search against Phyrgane/Phyrganet/Phyragane Major/Cricri it should take you quickly to the relevant pages.

What a great hint – ‘Les Ailes’ – thanks aa

Hi Jan,
guess you know this:
http://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=1607&mode=search&sessionid=580db44279522b6e883aaaf2a7cca7af
and this
https://www.aviafrance.com/salmson-d-1-phrygane–aviation-france-1156.htm

Martin

There was an Ian Allen special in the early 1970’s which from memory had a cockpit shot of a Siskin along with other interesting Siskin details.

This one?
http://www.ebay.com/itm/Aircraft-Illustrated-Ian-Allan-May-1971-Wimpeys-Siskin-Don-Gentile-Davis-Gun-/360933938893?hash=item540956d6cd

Well, after the site was offline yesterday I was rather hoping the matter would be fixed, but no, it is still there…

Same with Opera!

https://www.cia.gov/library/publications/the-world-factbook/fields/2053.html

“Howland Island: airstrip constructed in 1937 for scheduled refueling stop on the round-the-world flight of Amelia EARHART and Fred NOONAN….the airstrip is no longer serviceable”

In addition to my post #6 – I found this photo of the old Pemberton-Billing hangar in Woolston while looking for a Sopwith floatplane
[ATTACH=CONFIG]246910[/ATTACH]
http://www.kingstonaviation.org/100-years-ago/1914.html

Martin