caproni

en.wikipedia.org/wiki/Giovanni_Battista_Caproni

Enormous triplane bomber N-531:

"Six Liberty-engined triplanes, retroactively called Ca.42, were briefly operated from Taranto-Pizzone by the British Royal Naval Air Service with serials N526-N531. The Caproni Flight, as the new unit was called, was led by Squadron Commander R. Whitehead. The increased power cut climbing times in half while adding 500 kg of payload and raising the top speed by 15 km per hour."
flyingmachines.ru/Images7/Caproni/76-1.jpg
wpalette.com/en/pictures/33412

Flickr user Stig Jarlevik captioned this photo as follows:
"Stig Jarlevik 4y
This is RNAS final Ca.4 on loan. N531, and used by Northern Squadron, 6th Wing at Otranto.
Possibly even shot when it was delivered during the week ending on 26.1.1918.
Said to have been handed back to the Italians on 30.3.1918, but also said to have been on loan and used by RAF's 227 Sq at Pizzone until December 1918. Most probably, since RAF was formed on April 1st 1918, it was a papertransaction only.
Cheers
Stig"
see

N-531 and three of the same model lined up on a runway: fishstickmonkey.tumblr.com/post/78729753584/caproni-ca41-...

en.wikipedia.org/wiki/Caproni_Ca.4

The identification of this in flight is of course ... this is not a three-engined Caproni bomber but the four-engined Handley Page V/1500 bomber.

This is a license-built Caproni Ca-5 built by Fisher Body in the U.S., wearing the serial number S.C. 40070. Here is footage of this same aircraft in flight posted by CriticalPast on YouTube: YouTube - CriticalPast: "A Caproni plane in flight, United States HD Stock Footage"