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3.
PROJECT AIRSTREAM
by Philip W. Krey (HASL)
Michael Kleinman
(HASL)
Project Airstream is HASL's study of radioactivity in the lower
stratosphere emplcying the RB-57F aircraft as a sampling platform.
The
bircraft are flown by the 58th Weather Reconnaissance Squadron under
Hhe direction of the 9th Weather Wing of the Air Weather Service.
This
project iS a continuation of the Defense Atomic Support Agency's Propect Stardust except that Airstream's sampling missions are limited to
pbnly one per season.
The data in this report cover the missions flown in April,
and October 1969.
July
Previous reports containing results from this pro-
gram are given in references 1
through 8.
FLIGHT SCHEDULE
Airstream missions are scheduled for February,
May, August and
November with a + one month slippage.
However,
completed within a nine day interval.
The first Airstream mission was
flown in August 1967.
each mission must be
The flight trajectory and altitude coverage of
an Airstream mission are shown in Figures 3a and 3b,
Prior te February 1969,
respectively.
a large gap in the altitude coverage between 15.2
and 18.3 km existed in the sensitive polar regions of each hemisphere.
II -
wr mee me me
9