Talk:USS H-3

History of snorkel
In November 1926 Capt. Pericle Ferretti of the technical corps of the Italian Navy ran tests with a ventilation pipe installed on the ex USS H-3 (SS-30) submarine, which Italy had received as part of the World War I settlement. The tests were largely successful and a similar system was designed for the Sirena class, but was eventually scrapped, hence the following snorkel systems were not based on Ferretti's design.[3][4]

The above reference from the article on History of the Snorkel seems to conflict with the statement in this article that this sub was scrapped in 1931. — Preceding unsigned comment added by 72.64.76.44 (talk) 23:25, 2 August 2011 (UTC)