Flight Training - July 2020 - 40

But expectations exceeded technology, and the
ELT system was plagued with both a high false
alarm rate and failures to work properly when
needed-the first generation activating less than a
quarter of the time in actual crashes. And although
most of us are still required by the 1970s legislation to have them in our aircraft, the satellites that
listened for the beacons were turned off in 2009.
Airliners still monitor 121.5, as do many GA pilots,
but relying on a 121.5 ELT as your primary safety
tool is a bit like counting on winning the lottery as
part of your retirement planning.
That said, a new generation of ELTs using GPS
technology on the 406 MHz band also meets regulatory requirements, and these units come closer to
fulfilling the original promise of the ELT. Newer 406
ELTs are monitored by satellite, activate far more
reliably than 121.5 models, transmit more accurate
location information, and relay vital information specific to an aircraft. But they are more expensive, and
many older aircraft-which describes most of the GA
fleet-are not retrofitted, and probably never will be.
Instead, many pilots rely on a readily affordable
"pocket" version of this technology called a personal
locator beacon, or PLB.
PERSONAL LOCATOR BEACONS

Lots of pilots now carry PLBs, small GPS transmitters
than can send a Mayday signal to the swarm of satellites when activated, pinpointing your location with
astonishing accuracy.
But there's a problem.
never located by searchers. The father
died of exposure while trying to hike for
help. The mother and daughter hung on
for 55 days before finally succumbing to
starvation, all the while chronicling their
ordeal in a series of letters recovered
when deer hunters stumbled across the
wreckage seven months later.
Publication of a portion of the mother
and daughter's diary in newspapers galvanized the first ELT legislation, which
was given a second push by the 1972 disappearance of a pair of U.S. congressmen
in the Alaskan bush (who, to this day,
have never been located). The result of
these crashes was that Congress required
all aircraft in the country be equipped
with 121.5 MHz ELTs to make locating
downed airplanes easier. Later, satellite
technology was used to "listen" for ELTs,
which were designed with spring-loaded
switches to automatically activate upon
detecting an impact.
40  FLIGHT TRAINING JULY 2020

Satellite trackers such as those from Spot and personal locator beacons from manufacturers such as ACR
can provide GPS location information to friends and family or search and rescue teams. Leidos Flight
Service's surveillance-enhanced search and rescue service even allows users to register their devices to
allow Leidos to monitor flights and trigger search and rescue procedures far more quickly than with a
flight plan alone.



Flight Training - July 2020

Table of Contents for the Digital Edition of Flight Training - July 2020

Contents
Flight Training - July 2020 - Intro
Flight Training - July 2020 - Cover1
Flight Training - July 2020 - Cover2
Flight Training - July 2020 - Contents
Flight Training - July 2020 - 2
Flight Training - July 2020 - 3
Flight Training - July 2020 - 4
Flight Training - July 2020 - 5
Flight Training - July 2020 - 6
Flight Training - July 2020 - 7
Flight Training - July 2020 - 8
Flight Training - July 2020 - 9
Flight Training - July 2020 - 10
Flight Training - July 2020 - 11
Flight Training - July 2020 - 12
Flight Training - July 2020 - 13
Flight Training - July 2020 - 14
Flight Training - July 2020 - 15
Flight Training - July 2020 - 16
Flight Training - July 2020 - 17
Flight Training - July 2020 - 18
Flight Training - July 2020 - 19
Flight Training - July 2020 - 20
Flight Training - July 2020 - 21
Flight Training - July 2020 - 22
Flight Training - July 2020 - 23
Flight Training - July 2020 - 24
Flight Training - July 2020 - 25
Flight Training - July 2020 - 26
Flight Training - July 2020 - 27
Flight Training - July 2020 - 28
Flight Training - July 2020 - 29
Flight Training - July 2020 - 30
Flight Training - July 2020 - 31
Flight Training - July 2020 - 32
Flight Training - July 2020 - 33
Flight Training - July 2020 - 34
Flight Training - July 2020 - 35
Flight Training - July 2020 - 36
Flight Training - July 2020 - 37
Flight Training - July 2020 - 38
Flight Training - July 2020 - 39
Flight Training - July 2020 - 40
Flight Training - July 2020 - 41
Flight Training - July 2020 - 42
Flight Training - July 2020 - 43
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Flight Training - July 2020 - 45
Flight Training - July 2020 - 46
Flight Training - July 2020 - 47
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Flight Training - July 2020 - 49
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Flight Training - July 2020 - 55
Flight Training - July 2020 - 56
Flight Training - July 2020 - Cover3
Flight Training - July 2020 - Cover4
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https://www.nxtbook.com/nxtbooks/aopa/ft_201501
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https://www.nxtbook.com/nxtbooks/aopa/ft_201302
https://www.nxtbook.com/nxtbooks/aopa/ft_201301
https://www.nxtbook.com/nxtbooks/aopa/ft_201212
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