The US 6812 Division Bombe Report Eastcote 1944 Page 43

Tony Sale's Codes and Ciphers

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- 38 - TOP SECRET-T
Hoppity Menus. A hoppity menu is an ordinary menu with definite changes
during one run when the slow wheel reaches a designated letter, the center
wheel shall be moved ahead one place of the indicated enigma. A typical
hoppity menu follows:



Delayed Hoppity Menus. - This type of menu is used when the turnover point
can't be determined by ordinary means. The menu is first run through with
all settings normal. Then a run is made with the center wheel advanced one
position on the enigma whose setting is nearest ZZZ. Successive runs are
made advancing the center wheel of the enigma next further away from setting
ZZZ. Stops are indicated on the stop slips as follows:





Fig. 36. Typical Delayed Hoppity Stop Slip.


A typical delayed hoppity menu is shown below:





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