ll, Subsequent to our return from Christmas Island, certain
calculations have been made based on information noted above,
although at the time it seemed that the weapon Was less than 1 MTP,
the analysis of broken glass and fire would place the yield betwee
1 and 3 MT,
In this connection, a London release, date line by
November 9 by U,P., stated that "A specially equipped Royal Air
Force Valiant jet bomber dropped yesterday's bomb which sources
reported was in the 10 MT range,"
12, It is interesting to recall some of the conversation
which is listed below;
a. Dr. Willilam Cook stated that, given a year to
18 months, they would have the technique of building
a hydrogen bemb, but they would certainly have it
sooner if the United States told them how they designed
it,
b,. Dr, Cook Was overheard to say that he would
not return te Ensland untill Mr,Perney Let nin
know if another shot was required, as he (Dr. Cook)
felt that the shot met all expectations,
It is
interesting to note that 2 days later in San Francisco,
Rear Admiral Patrick talked with Dr, Cock as he was
buying a ticket for London and hoping to arrive no
iater than le November
SUM W. WHITE, Brig, Gen,., USAF
hepusy Chief
atucsi Forees Special Weapons
Profjests
.
G, SERPELL PATRICK, RADE, US
Director, Atomic Energy
Division
Office of Chief of Naval
Operations
Navy Department
DMCLASSTFERD
B.D. 1ROG8, Seo. 3G
Bas
AtALE,.E TD a. 2 uernonanegy
bsDtLate.isteLL2LOE
aa
Pi