Ameri-King AK-451-ELT - Manual (Page 29)

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Helicopter Installations:
The AK-451-(14)(15)(17)(18) may be mounted so that the arrow aligns with the
longitudinal axis of the aircraft. If necessary, the ELT may be tilted Nose down up to
10 degrees, (see Figure 1.1). The ELT mount may be rotated about the aircraft center
axis, i.e., the ELT can be mounted on the floor, walls or over head, so long as it
‘points’ to the front of the aircraft.
Also, refer to aircraft manufacturer’s data (Type Approval or STC information)
and/or national regulations regarding installation on helicopters.
Figure 1.1: Direction Determination for Helicopter
2.2.1.2 MOUNTING TRAY AND CLAMP HOLDER INSTALLATION:
After selecting a suitable location meeting all of the above requirement, drill, mount,
must install the ELT MountingTray as shown in Figures2.1.2and 3.Mark the4 holes in
trapezoidal locations needed for the tray using the tray as a guide. Be sure the tray
aligns within 10 degrees of the longitudinal axis of the aircraft (and in direction of
flight). The mounting Tray may be mounted on the Horizontal plane or Side wall, or
Overhead, as long as the FORWARD Arrow direction shown on the ELT is adhered.
Note: The purpose of 4 holes in trapezoidal configuration is to assure that both the
ELT and mounting tray will be placed in the correct direction (with the arrow
FORWARD direction marking on the ELT must be adhered.) Therefore, make
sure the direction of the 4 mounting holes in trapezoidal configuration is correct.
If a reinforcement (Doubler) plate is needed to meet the rigidity requirements of
paragraph 2.2.1.1, fabricate one using the tray as a guide.