H plus & (ate

vy f..

.. up (tene bearings free GB}.

245° clockwise ta <;° ssximme distance 110 Nir
;

ST

:

“

290° clockwise ta

30° maximus distance 75 NM

30° clockwise to 65° maximum distance 130 Nik

¥ 140,000 feet and up (true bearings from GZ)1

230° clockwise to 320° maxima distance 110 Ni

“

50° clockwise to 115° maximus distarse 250 NIE

A ocamaad briefing was held approximately 1930K to confirm previcus

decisions. The briefing consisted primarily of a look at the weather and

wind patterns since the morning briefing and the forecast for shot times. A
complete Command Briefing waa given at midnight (O50000M), The winds and
weather being favorable, it was decided to ecntinue with the shot and to

look at the forecast and observed winds again at OL30K for 4 final firm

decision. The forecast fall-out plot by elliptical approximation is insluded
in Inclosure 4. The new technique, based on forecast tims and space changes

im thea wind pattern for H to H plus 24 hours, gave a similar fall-out patter
exept that its major axis lay mre along an sast to esst—northeast line frog

GZ than northeast as given by the abowe plot. Due to significant changes i:
the forecast 72-hour air particle trajectories, a acditied advisory ms .
issued to CINCPACFLT revisi-g the ten, twenty, thirty and fifty thousand foot
levels. Due to a major shift in the 10,000 foot trajectory it was decided
to recommend closure of the KWAJALSIN-GUAM air route from H plus 9 te H plus
24 hours, This was subsequently accomplished by CINCPACFLT.
surface RADEX was issued as followssr

A modified

—

Surface R»DEX (true bearings from GZ for H to H plus 6 hours)s
320° clockwise to 70° maximum distance 60 WM
70°? clockwise to 200° maximum distance 30 NH
200° elockwise to 260° maxiam distance 70 NU

Circular R.DEX around GZ, 15 NM radius.

(Noter & recommendation was made to move the Control

Destroyer to true bearing from GZ of 270° and 90 NM.)

Instructions were issued for the first two cloud trackers ("ilson 2 and

“ilaon 3),

"“ilson 2 was directed to perform a racetrack holding pattern 50

NN west of GZ at 10,000 feet from H plus 2 to H plus 5 hours followed by an

upwind search at 10,000 feet in the sector 65° to 95° true bearings from GZ

out to 500 NM. “Llson 3 was directed tu perform a racetrack pattern beneath
"hison 2 from H plua 2 hcurs until released, flight altitude at the discrerion of the pilot tc remain clear of natural clouds but not in excess of
»000 feet.

Since the task force flect was located east-southeast of GZ at abcut

25 to 35 NU, and based cn the latest fcrecast winds, it was recommended that
the slow ships move further out to 50 Mf cn a bearing line of 120° true frea
their current position, ind th:t the remaining

H-hour firing requirements were ecapleted.

O=2

larger ships head scuth after

This plan of ship acvements was

Select target paragraph3