TM-5-3740-210-12
2.0
SYSTEM DESCRIPTION
2.1
General
This aerial spray system is designed for installation in, and utilization with U. b. Army UH-1 B and D type
helicopters. It is designed for dispensing herbicides and pesticides.
As noted in Figure 1, the system is composed of a windmill driven pump, spray booms and nozzles, a tank and
support structure and valve control panel. The spray tank is a 200-gallon molded fiberglass reinforced epoxy resin
structure haying two internal baffle-bulkheads.
The tank and support structure contain the basic attach points to which externally extended components are
mounted to eliminate their need for attach points on the aircraft.
The entire spray system including the tank and tank structure, the spray atomizer boom, and the valve controls
may be installed or removed, fully assembled for use, by adjusting quick-release locking clamps.
This clamping
technique serves to rigidly attach the entire system structure to existing cargo deck fittings in the helicopter.
As described in Figure 1, the spray boom and nozzle system configuration is established by the attachment of a
windmill-driven centrifugal pump and the boom system, together with their struts and support cables, to the tank
structure. The suction side of the windmill-powered centrifugal pump is connected to the left tank outlet and the pump
outlet is extended to a tee fitting in the boom under the center of the tank in the cargo compartment.
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