Accession Number : AD0718760

Title :   Vacuum-Air Tube System for Low Altitude Meteorological Probes.

Descriptive Note : Interim technical rept. no. 7,

Corporate Author : ARMY RESEARCH OFFICE DURHAM N C

Personal Author(s) : Kumar,Sudhir ; Shieh,Stanley Chin-nan

Report Date : JUL 1968

Pagination or Media Count : 40

Abstract : The vacuum-air missile boost system for launching meteorological probes for low altitudes was recommended. The maximum velocity that can be imparted by this system is near sonic velocity. The instrument payload comes down with a parachute and transmits the data to a ground station on its descent. This system is considered quite suitable for launching low altitude meteorological probes up to 8,000 feet height. Its advantages over the presently used methods are: low 'g' acceleration of the instrument payload, speedy data collection, low cost per launch, all weather operation capability, launch without recoil without flash or without any noticeable sound. Three specific design plans for permanent, temporary and mobile facilities and design charts for 1/2 to 3 lb. payloads, 3 to 150 ft. long and 3 to 9 in. diameter tubes and for 1,000 to 8,000 height ranges are given. The minimum time required for data collection is expected to be 1 to 3.2 minutes for 2 to 7 thousand ft. altitudes assuming a rate of descent of 40 ft/sec. for the parachute. (Author)

Descriptors :   (*METEOROLOGICAL INSTRUMENTS, *LAUNCHING), VACUUM, LOW ALTITUDE, PARACHUTES

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE