Fokker
Dr.I
35”
Page
6
Copyright©
2005
‐
13
M.K.
Bengtson
All
Rights
Reserved
Rev
04/13
FLYING
The
model
should
ROG
on
grass,
pavement
or
hard
surfaces.
Use
full
throttle
and
full
up
elevator
on
takeoff.
Once
the
model
is
airborne,
ease
off
the
elevator
to
neutral.
Let
the
model
gain
altitude
slowly
off
the
runway.
In
flight,
applying
too
much
up
elevator
at
slow
speeds
risks
a
stall.
Make
your
turns
gently
as
tight
turns
risk
tip
stalling
in
any
model.
Don’t
expect
the
elevator
to
make
the
model
climb.
Think
of
the
elevator
as
a
device
to
change
the
attitude
of
the
model.
The
wing
and
airspeed
ultimately
make
the
model
climb.
Often
down
elevator
applied
at
stalling
can
avoid
a
major
crash.
Fly
the
model
to
a
landing,
keeping
some
power
so
that
the
airflow
over
the
tail
is
preserved.
Just
prior
to
touchdown,
give
the
model
full
up
elevator
to
prevent
nose
over.
The
model
may
require
coordinated
turns
using
both
ailerons
and
rudder
control.
This
is
due
to
adverse
yaw.
Halving
the
aileron
down
throw
will
reduce
the
effect.
This
can
be
accomplished
by
rotating
the
control
arm
of
the
aileron
servo
forward
about
20
degrees.
The
most
important
details
for
proper
flight
operations
are:
1)
CG
location.
Tail
‐
heavy
models
never
fly
well
or
at
all.
2)
Down
and
right
thrust
3)
Straight
and
non
‐
warped
wings.
Here
are
some
excerpts
of
John
Boeck’s
flight
report
.
“The
Fokker
Dawn
Patrol
was
in
full
force
this
morning.
ROG
ʹ
s
look
scale
and
happen
in
about
20
feet.
The
model
will
ROG
in
short
grass
without
issue.
Full
up
elevator,
at
full
throw,
is
needed
at
takeoff
to
prevent
nose
over.
Climb
outs
look
scale
with
this
power
system.
Climb
rate
is
good
and
it
turns
very
quickly.
Throws
are
1/4
ʺ
aileron,
1/4
ʺ
elevator
w/
stop
to
stop
on
takeoff
and
rudder
stop
to
stop.
The
aileron
and
elevator
are
set
up
on
dual
rates.
At
these
settings
I
found
her
to
be
very
easy
on
me
in
the
air
once
I
figured
out
the
over
correction
mistakes
I
was
making.
It
flies
at
the
pace
of
good
run
at
3/4
to
full
throttle.“
“Just
got
back
from
a
second
flight
in
a
wind
of
about
7
mph.
It
flies
pretty
well,
but
needs
much
more
aileron
throw
to
get
it
to
roll.
Dual
rates
or
expo
ʹ
s
work
well
for
this.
I
ʹ
ve
found
short
grass
provides
much
more
control
over
pavement
during
takeoff.“
The
model
also
flies
well
with
this
power
system:
GWS
400C
‐
F,
12x8
GWS
HD
and
uses
a
3S
1500
Mah
Li
‐
poly
battery.
The
John’s
model
weighs
about
30
ounces.
Note:
John’s
model
used
spruce
spars.
Balsa
spars
are
now
recommended.
Several
ounces
of
weight
are
saved
and
the
model
retains
structural
integrity.
CONTACT
INFORMATION
Distributed
by:
Bengtson
Company
e
‐
mail:
Web
Site:
www.aerodromerc.com
