VOLUME I Multinational Maritime Tactical Instructions and Procedures

MTP 1(D), Vol. I
b. NOT RELEASABLE
9237 AIRCRAFT REPORTS TO THE SAU
An aircraft at the scene of action shall transmit reports to the SAU to assist in closing the contact or
datum. However, attack procedures and maintaining contact take precedence over reporting. The aircraft
may indicate the position of the submarine contact or datum relative to the approaching unit or relative to
KINGPIN (an arbitrary reference position established by the aircraft). The procedures described below
may be used to indicate contact, datum, or KINGPIN.
a. Radar On Top. When an approaching unit holds the aircraft on radar, the commander of the approaching
unit may send the message “Request radar on top.” On receiving this signal, the aircraft shall fly
over the contact, datum, or KINGPIN and report, “On top contact (datum or KINGPIN) now, now,
NOW,” and using IFF squawk identity. The third “now” will be the on-top position.
b. Reverse Radar On Top. When an approaching unit does not hold the aircraft on radar, the
aircraft should try to determine using its own radar the position of the unit relative to the contact, datum, or
KINGPIN. The aircraft shall fly over the contact, datum, or KINGPIN and report, “On top contact (datum
or KINGPIN) now, now, NOW,” and transmit to the approaching unit the bearing and distance from the
approaching unit to the datum, contact, or KINGPIN.
9-34 ORIGINAL