Decisions you must make – Top Flite TOPA0700 User Manual
Page 4

Function
. . . . . . . . . . . .
Ser
v
os required
Ele
v
ators
. . . . . . . . . . . . 2 (min.
50 oz-in torque)
Rudder
. . . . . . . . . . . . . 1 (min.
50 oz-in torque)
Ailerons
. . . . . . . . . . . . . 2 (min.
50 oz-in torque)
Flaps
. . . . . . . . . . . . . . . 2
T
ail steer
ing
. . . . . . . . . . 1
Throttle
. . . . . . . . . . . . . 1
Air control v
alv
e
. . . . . . . 1
Optional Kill s
witch
for gas engine
. . . . . . . . 1
T
otal:
. . . . . . . . . . . . . .
10-11 ser
v
o
s
A receiv
er batter
y with a minim
um of 1,000 mAh
is recommended f
or flying the giant Mustang.
In
the model sho
wn in this instr
uction man
ual a
Futaba NR4F 1,500 mAh batter
y pac
k
(FUTM1285) is sho
wn.
Additionally
, the batter
y
v
oltage should be chec
k
ed bef
ore e
v
er
y flight to
be cer
tain it has enough
“charge
.”
In addition to the ser
v
os (and Synchroniz
ed Ser
v
o
Re
v
erser if used), the f
ollo
wing items (or similar
items) are also required.
The order n
u
mbers
sho
wn (in parentheses) are f
or Futaba ser
v
o
s
.
❏
(2) 24" [610mm] ser
v
o e
xtension wires f
or the
aileron ser
v
os (FUTM2721)
❏
(1) Dual ser
v
o
e
xtension cord f
or aileron
ser
v
os (FUTM4130)
❏
(1)
Y
-har
ness f
or flap ser
v
os (HCAM2751)
❏
(4) 6" [150mm] ser
v
o
e
xtensions (batter
y-1,
aileron-1, ele
v
a
tor-2) (HCAM2701 f
o
r Futaba)
Note:
The length and quantity of ser
vo
e
xtensions
and
Y
-connectors ma
y v
a
ry
depending on the br
and
of r
adio y
ou are using and the r
adio installation.
pre
v
ent accidental star
ting.
The s
witch m
ust be
oper
ated man
ually (without the use of the
tr
ansmitter) and accessib
le b
y
the pilot and
assistant.
If using a spar
k-ignition engine
, ref
er to
Mount the kill s
witc
h
on page 32 f
or details and
a list of items used.
RADIO EQ
UIPMENT
The r
adio equipment and n
umber of channels
required to fly the
T
op Flite Giant P-51 depend on
the capabilities of y
our tr
ansmitter and ho
w the
ser
v
os will be connected.
T
w
o ser
v
os are required
to oper
ate the ele
v
ators
.
H
o
w
e
v
er
, the ser
v
o
s
m
ust mo
v
e
in opposition, so linking them with a
Y
-
connecter will not w
o
rk
.
The ele
v
a
tor ser
v
os m
ust
either be electronically mix
ed using an additional
channel, or be link
ed b
y
a de
vice such as a
Futaba
®
SR-10 Synchroniz
ed Ser
v
o
Re
v
erser
(FUTM4150) that will mix the ser
v
os with the
capability of re
v
ersing one of them.
The r
udder ser
v
o
and tail steer
ing ser
v
o
ha
v
e
the
same requirement, so the
y too m
ust either be
electronically mix
ed through an additional
channel, or connected via a Futaba Synchroniz
ed
Ser
v
o
Re
v
e
rser
.
The Giant P-51 requires a ser
v
o
to oper
ate the air
control v
alv
e if using retr
acts
, a throttle ser
v
o
, tw
o
flap ser
v
os and tw
o aileron ser
v
o
s
.
Ser
v
os with a
minim
um of 50 oz-in [3.9 kg-cm] of torque are
required f
or oper
ating the ele
v
ators
, r
udder and
ailerons
.
Standard ser
v
os ma
y be used
e
v
er
ywhere else
.
If using a spar
k-ignition engine
,
a ser
v
o-oper
ated electronic engine kill s
witch ma
y
also be used (this w
ould be in addition to the
IMAA-required, man
ually oper
ated engine kill
s
w
itch).
A ser
v
o-oper
ated kill s
witch is only really
necessar
y f
or engines that do not reliab
ly shut off
b
y
closing the carb
uretor
, b
ut could also ser
v
e
as
a bac
kup
.
This is a par
tial list of items required to finish this
model that ma
y require planning or decision
making bef
ore star
ting to b
uild.
Order n
u
mbers
are pro
vided in parentheses
.
ENGINE RECOMMEND
A
TIONS
When consider
ing engines f
o
r this model, ref
er to
the engine siz
e recommendations on the co
v
er of
the man
ual.
Spar
k-ignition (“gas”) engines are
most popular with large-scale w
arbirds such as
this
.
One adv
antage of a gas engine is
econom
y—gas engines tend to consume less fuel
than glo
w engines
.
Gasoline costs less than glo
w
fuel as w
ell.
Additionally
, gas engines deposit little
e
x
haust residue on the model.
Among other
engines
, this model w
as flight-tested with a U
.S
.
Engines
™
41cc engine
.
The U
.S
.
41 pro
v
ides
adequate po
w
er and flies the P-51 in a scale-lik
e
manner
, b
ut pilots who wish to perf
or
m more
agg
ressiv
e maneuv
ers should consider engines
nearer the upper end of the recommended r
ange
.
Note:
Instr
uctions f
or mounting e
v
er
y possib
le
engine cannot be incor
por
ated into this man
ual.
Although there are se
v
e
ral glo
w engines suitab
le
for po
w
e
ring the giant P-51, the U
.S
.
Engines
41cc is f
eatured.
Modelers using another engine
ma
y ref
er to the instr
uctions as a guide f
o
r
mounting their engine in a similar w
a
y.
If using the
U
.S
.
41, the f
ollo
wing items will be required:
❏
Great Planes Gasoline Engine Mount (GPMG2000)
❏
(4) 1/4-20 x 1-1/2" [38mm] he
x-head bolts
and 1/4" [6mm] flat w
ashers
❏
Prop Reamer (GPMQ5005)
P
er the IMAA Saf
ety Code
, magneto spar
k-
ignition engines m
ust ha
v
e
a coil-g
rounding
s
w
itch on the aircr
a
ft to stop the engine and
DECISIONS YOU MUST MAKE
- 4
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