This page created 4/10/99
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Installing an Emergency Locator Transmitter in the Stinson is not difficult and it is possible to complete an attractive installation without an external antenna.
Ameri-King AK-450 ELT Installation in Rich
Tweedie's 108-2, N175C.
was mounted with three ‘D’ type clamps to the supplied mounting tray. It
was mounted immediately behind the baggage compartment. The antenna
installation was complicated by the poor looks and excessive flexibility
of supplied ELT antenna. The solution we have chosen is to mount the antenna
horizontally inside the fabric. It is mounted longitudinally, from
the middle top of the fuselage bulkhead immediately aft of the baggage
compartment, to the next bulkhead aft of that. To prevent the antenna from
whipping around in the fuselage, I made a bracket for the antenna top to
fit into at the rear bulkhead. It was fabricated from ¾ inch linen
phenolic (Micarta) rod, with a hole for the antenna top to slide into,
and drilled and tapped for an 8-32 screw at the other end.
ACK ELT Installation in NC6197M
I chose an ACK model E-01 ELT for my Stinson, and like Rich Tweedie, installed it behind the baggage compartment. Access to the ELT is gained by unsnapping the canvas flap on the back of the baggage compartment. I located the ELT close to the fuselage centerline as advised by ACK, but was careful to offset it to stay clear of the elevator cables. A birch ply "platform" is attached to the fuselage tubing with Adel clamps and the ELT aluminum ELT tray is mounted to that. The annunciator for the ELT is located on a subpanel below the main instrument panel next to the intercom. I have installed the antenna in the same location that Rich used, but fabricated a different support for the antenna tip, since the ACK antenna is too short to reach aft to the next bulkhead. I fabricated a small aluminum bracket that spans the two center stringers and holds a small plastic snap bushing from Aircraft Spruce to "trap" the antenna tip. Photos of the antenna installation are below: