200 ATL' s            (328')          carrying 18,000 vehicles
            570 YTL' s            (105'-200')      "         2,250 tanks
            300 Giant Y's         (153')             "        60,000 men
            300 TL' s             (50')                  "             300 vehicles
            500 Y' s              (36')                   "      18,000 men
             80 YR' s             (36')                  "             80 vehicles
 
          It will be seen that chief reliance is placed in the
 larger, more seaworthy types of vessels. The British Navy
recommend against a shore to shore crossing in small boats and
against a ship to shore operation from combat loaded transports.
The U.S.Army accepts the method and plan proposed by the British.
It expects to have in the U.K. by April 1943 a total force of
832,000 men to sustain the movement.
 
         To provide the landing craft listed, the construction of 
the following additional vessels in the U.S. to be available at 
seaboard by March 1, 1943 is required:                        
 
         299 YTL's
         172 ATL, s (328')
         300 Giant Y's (153')
 
       This construction is considered to be physically possible 
only upon condition that this program be given priorities over 
all other items of the Defense Program as necessary to meet the
date of March 1, 1943
 
      The construction of the ATL's and Giant Y boats would 
require a modification of existing combat and cargo shipbuilding 
programs which may affect joint operations. It is therefore
recommended that this entire matter be referred to the Joint 
Chiefs of Staff for immediate consideration in collaboration 
with other affected agencies as necessary and report.
 
 
 
 
                                          Brehon Somervell,
                                          Lt. General, U.S.Army.
 
 
 
                                          F.J. Horne
                                          Vice Admiral, U.S.Navy.
 
May 14, 1942.