Fuel Delivery Equipment
The fuel delivery equipment (nozzle kit, discharge hose kits, suction hose kit, drum fitting kit, discharge fitting kit, ground
rod kit and drum adapter kit) presented here includes all the hoses, couplings, manifolds and nozzles required to carry fuel
from the fuel drums to the four refueling points and to dispense the fuel to aircraft. Figure 5 is a pictorial representation of the
AAFARS showing the fuel delivery equipment in the context of its use. Unisex couplings are used throughout with the
exception of the fuel drum couplings and pump inlet manifold, which are camlock to interface with the camlock couplings
integral to the fuel drums. Individual components are described in the following paragraphs.
AAFARS employs two different types of fuel hoses: collapsible and non-collapsible. The only other distinction between
hoses is the size: some are two-inch, some are three-inch. All AAFARS fuel hoses are light weight, elastomer hoses with an
imbedded static wire which contacts the coupling at each end to provide electrical continuity from end to end. All the fuel
hoses are terminated in valved unisex couplings which allow isolation of any hose length in case of emergency or failure. The
unisex couplings are provided with dust caps to prevent entry of dirt or debris when any hose end is not coupled to another
hose or fitting.
The suction hoses are two-inch diameter non-collapsible hoses. Non-collapsible hoses are used to ensure a free flow of fuel
from the drums to the pump. Since the non-collapsible hoses are semi-rigid and cannot be rolled, the length is restricted to
seven feet to facilitate handling, transportation and storage. Two of the non-collapsible hoses also are used for fuel
The fuel discharge hoses are three-inch diameter hoses to handle the volume of fuel required for four fueling points. One fuel
delivery hose is a three inch diameter hose and the remaining fuel delivery hoses are two-inch diameter as shown in figure 5.