VOLUME I Multinational Maritime Tactical Instructions and Procedures

(1) In this disposition, task groups are allocated to separate sectors, each sector being under the control
of its own sector commander, who is normally also the CTG. In some instances the CTF may allocate
sectors to task units for a specific task, in which case the CTU becomes the sector commander.
(2) Sector commanders in a CARTWHEEL disposition may in turn station their units in a CART-
WHEEL formation. Care must be taken to ensure that the outer boundaries of that formation do not extend
beyond the limits of the disposition sectors.
(3) The CARTWHEEL formation may also be used by OTCs of groups operating independently.
b. Purpose.
(1) To provide a disposition or formation that will allow an OTC or CTG to delegate the tactical
control and conduct of affairs to selected subordinate commanders or units while retaining the means to
rapidly resume control.
(2) To provide a defense that will allow for immediate and preplanned threat reactions.
(3) To provide deception and disguise in a formation that will conceal high value units (HVUs).
(4) To provide a disposition or formation that will allow attachments and detachments to take place
with minimal confusion and need for subsequent reorganization.
c. Execution.
(1) Disposition Sectors.
(a) Sectors will normally be allocated in accordance with the sector screen format.
Alternatively, the standard lettered sectors as specified for the CARTWHEEL formation in
subparagraph c(2)(a) below may be used, but the depth of radius of each sector must in this case be
signaled.
(b) Sectors will be based on the center of the task force (ZZ). If no ship is stationed in ZZ, the
geographic PIM or ZZ will be signaled.
(2) Formation Sectors.
MTP 1(D), Vol. I
(a) The CARTWHEEL formation will be divided into lettered sectors, which will be as
follows, unless otherwise ordered:
Sector ALFA 000 to 120 6 to 20 kyd
Sector BRAVO 120 to 240 6 to 20 kyd
Sector CHARLIE 240 to 359 6 to 20 kyd
Sector DELTA 000 to 359 0 to 6 kyd
(b) Any changes to the above bearings, radii, or depths of sectors will be promulgated when the
formation is ordered. Sectors will be based on station Zero, the center of the task group or task unit as
appropriate. If no ship is in station Zero, the geographic PIM of station Zero will be signaled.
3-31 ORIGINAL