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1.
The Squid and the Hedgehog were ahead throwing weapons, which
sank more quickly than the depth charge and could be fired while
still in asdic contact.
2. The hydrogen peroxide (H2O2) or Ingolin, as the Germans called
it, was fed into a catalyst chamber where oxygen became disassociated
from the water with a great release of heat. The resulting steam
and oxygen was then passed into a combustion chamber where sulphur
free fuel was injected which burnt and raised the temperature
still more. Water was also injected to stop the gas getting too
hot and this produced more steam. The steam was then used to drive
a turbine and was subsequently condensed in a condenser where
the carbonic acid was also removed. The condensed steam was injected
into the combustion chamber again and the carbonic acid was pumped
into the sea. Ingolin was expensive, several times the price of
fuel
and, if not handled carefully, was dangerous and liable to explode.
The same weight of Ingolin provided thirty-five times the energy
that could be stored in an electric battery.
3. Vagabond,
Volatile
and Votary.
4. XE11 had been salvaged after an accident and was now scrapped
and XE10 was cancelled before completion.
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5. U2518 and
U2326 to France and U4706, U926, 11995 and U1202 to Norway.
6. Of the grand total of 47 T class completed, 15 had been lost
and two were transferred to the Royal Netherlands Navy.
7. The A-class were also to be fitted with this radar.
8. This gives the situation in 1946 and substantial changes in
policy were later made. This book does not cover the post-war
development of the submarine and the subject will be taken no
further. Suffice it to say that, even at this stage, nuclear power
was in sight and that the Americans were prepared to wait for
it, rather than develop hydrogen peroxide propulsion. The Russians,
with the nuclear goal in mind, opted for experimental boats of
the Quebec and Zulu classes using H7P. These were not popular
and were known as ‘cigarette lighters’, being discarded
as soon as the November-class SSN was available.
9. Grand total of 66 S-class, 17 were lost and two transferred
to Allied Navies.
10. Grand total of U and V-classes built was 71. Sixteen were
lost in the war, three were lost by accident and 20 were transferred
to Allied Navies.
11. One to France and another to Greece.
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