2.6.1 Objective
To investigate the validity of the static pressure scaling laws
for large yield surface bursts. The principal pressure region of
interest is above 40 psi. In addition, supporting pressure-time

meagtiréments will be obtained within the Project 3.3 tree stand.

Self-contained, flash initiated pressure-time recording gages
in ground; baffles will be installed at various distances from ground
zero, generally in the pressure region above 40 psi. In addition,
pressure-time gages will be placed in ground baffles ahead of the
Project 3.3 trg@ stand, within the tree stand and behind the tree stand
4s an instrume
ion service to Froject 3.3 personnel.

2.6.3 RemarksThe self-contained mechanical gage was field tested during
UPSHCT-KNOTHULE, The stated accuracy of the gage is + 10 per cent.
rroject 1.2b will participate in all shots. Limitations imposed by
Rad-Safe considerations may, restrict the participation to fewer shots.
2.7

Eroject Number:

Sponsor:
ject
2.7.1

ASP
Cfficer:

1.

Shock Winds and Af'terwinds

‘)

BerformingAgency:

Dr. i Harding

Chiective

Sandia

Corporation

iAY

CS

To determine the dynamic prbsetrentime characteristics of the

shock wave produced by large yield surfh¢e
bursts.
3
2.7.2

Procedure

lJ

Fitot tubes oriented toward ground zero {will be installed on
islands at approximately 5 ft above the ground ;at three different
ground ranges. ‘The pitot tube will contain al.side~on pressure opening and the static pressure will be obtained for couparative purposes.
In addition, a multiple instrument station will be/installed on
George. This station will contain a density gage,'4 temperature gage,
a pitot tube, a drag gage and a ground level presstire gages
2.7.3

Remarks

Bravo. "Limitations imposed by Rad-Safe considerations my re

the participation to fewer shots.

fot

ied

22

Select target paragraph3