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Eiri KY PIK-20 E - Stopping and Retracting the Engine in the Air

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PIK-20
E
Flight
manual
5.16
Stopping
and
retracting
the
engine
in
the
air
A
recommended
air
speed
when
stopping
and
retracting
the
engine
is
100
km/h
(62
mph,
54
kts).
The
propeller
will
then
slow
down
fast
and
the
retracting
can
be
performed
easily.
The
maximum
allowed
speed
when
retracting
and
extending
the
engine
is
135
km/h
(84
mph,
73
kts),
but
stopping
the
propeller
requires
then
more
experience,
and
more
alti
tude
is
lost
during
the
operation.
The
stopping
of
the
engine
begins
by
reducing
the
power
and
letting
the
engine
idle,
ie.
about
3000
rpm.
When
the
cylinder
head
temperature
has
dropped
to
175°C
(350°F),
the
ignition
can
be
turned
off.
After
some
five
seconds
the
propeller
slows
down
a
little,
but
is
still
rotating
as
if
the
engine
would
be
idling.
The
propeller
can
then
be
braked
by
moving
the
control
lever
of
the
en
gine
compartment
doors
(propeller
brake)
fully
back
(opening
the
doors).
After
this
the
doors
must
be
closed
to
let
the
propeller
slowly
rotate
by
the
air
over
the
compression
positions
(propeller
vertical
and
horizontal).
The
propeller
position
can
be
checked
by
looking
in
the
mir
ror.
When
the
propeller
is
approaching
the
vertical
position,
the
propeller
can
slowly
be
braked
by
moving
the
engine
compartment
doors
control
lever
backwards.
When
the
propeller
is
in
right
vertical
position,
the
bra
ke
should
be
fully
applied
by
opening
the
doors
fully.
If
the
braking
has
been
made
too
late
and
the
propeller
has
passed
the
vertical
position,
the
doors
should
be
closed
and
the
braking
renewed
when
the
propeller
is
approaching
the
vertical
position
again.
Before
the
first
flight
the
braking
of
the
propeller
should
be
trained
on
the
ground.
The
pilot
can
have
another
person
turning
the
propeller
slowly
over
the
vertical
compression
position
and
the
pilot
brakes
the
propeller
in
the
right
position.
The
desired
propeller
position
can
be
checked
with
the
engine
retracted
and
the
doors
open.
Check,
that
main
and
ignition
switches
are
off
before
rotating
the
propeller
by
hand.
EIRI
KY
y
Kisällinkatu
8
SF-15170
Lahti
17
page
I-30

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