Republic P-47 Thunderbolt, also known as the Jug, was the
largest single-engine Fighter of its day, and a vast improvement
over the Curtiss P-40 Warhawk, its predecessor It was one of the
main United States Army Air Force (USAAF) fighters of World War
II, and also served with other Allied air forces. The P-47 was
effective in Air combat but proved especially adept at ground
attack. It had eight .50-caliber machine guns, four per wing.
When fully loaded the P-47 could weigh up to eight tons. (From
Planes introduces their version of the famous fighter, in a smaller
size of course, perfect for a .25 size Glow engine or Electric.
As in the full scale version, this P-47 follows in the same size
also by Great Planes.
P-47 is one of my favorite Warbirds and the smaller size is great
for less expensive gear and ease of transport. The ARF came packed
well as all other Great Planes ARF's do. It only needed minor
shrinking of the covering before assembly. One thing I did notice
was some areas on my model didn't seem to be sanded very well
aileron hinges are already glued in place so that timesaver
allowed me to move to the Aileron servo mounting. The Aileron
servo plate was laser etched for the proper position to mount the
wood mounting blocks, I glued them in with 30 minute Epoxy.
recommended Futaba S3115 Precision Micro servos were used and the only thing I did before mounting them was add some double
sided servo tape to the bottom of them, its just a little
insurance I like to add in case the blocks would ever come loose.
Aileron Mounting plate with laser etched guides for the
Shrink tube on the connector
The Aileron control horns were next and per the manual there are 2
different sets. The Ailerons have the larger hole in them as seen in
the picture. After lining them up and installing them, along with
the servo and linkage the wings were ready to be joined.
Double sided tape
Horns with larger hole are for Ailerons
Completed Aileron servos
Wing joiner was test fit in both wings to make sure there were not
any gaps, then the Wings were glued together with 30 minute Epoxy.
When the Epoxy was hard the wing mounting bolt plate was glued in
place with thick CA, after removing the covering of course, and
the wings were now complete.
Mounting bolt plate
Remove the balsa piece
Stab with Covering removed
String used to align Stab
Tail sections were next, and the small piece of balsa in the rear
of the fuse needs to be removed so the Horizontal stab can be
slid in place. The people at Great planes were nice enough to
make a laser etched mark on the firewall that is the center mark
for using a piece of string to locate the Horizontal stab evenly
on both sides. It was also checked to make sure it was level with
the Wing. When it was aligned and level the covering was removed
from the stab and it was glued in place with thin CA, you could
also use Epoxy if you desired.
Rudder was glued in place next, making sure to install the bottom
CA hinge first. It was checked to make sure it was 90° to the
Stab and then glued in place with thin CA as well. The wire pushrods
were slid in place inside the Fuse and the control horns were
mounted in place. The Z bends of the rods need to be inserted
into the horn before mounting them or you won't be able to get
them in the horn.
Futaba servos were a perfect fit in the radio tray and the linkages
were slid into the E/Z connector and that was all that was needed
for the Elevator/Rudder setup.
motor mount provided was assembled next. I carefully read the
instructions when putting it together as there is down thrust built
into the mount and it needs to be assembled per the manual. I test
fit mine together and when it was correct used thin CA to hold it
all together, I then went over the joints with Epoxy to make sure it
was strong. The cooling holes in the firewall were already pre-cut
and they just needed to be knocked out. If you were using a glow
engine you would leave them in and seal them with Epoxy.
Power system used was the Electrifly Rimfire 35-36-1200 Outrunner
motor, Electrifly Silver series 45 amp ESC, and the Electrifly 3
cell 3200mah Lithium Polymer battery. The connections between the
motor and the ESC did not use the same size bullet connectors, no
idea why they weren't. A set of Electrifly 4mm to 3.5mm adapters
were used between the Motor and ESC.
Landing gear mounted
Tail skid with washer
Tail skid installed
Belly pan pieces
Belly pan assembled
Canopy glued on
Belly pan glued in place
Cowl mounting method
Remove covering from cooling exit
Machine gun rods
Machine guns installed
Manual provided excellent instruction on mounting the cowl, after
gluing the mounting blocks in place some spare cardboard is used
to align the holes, then slide the cowl underneath the cardboard
and drill your holes. They also provided the Aluminum spinner
nut as well!
can fly your P-47 with the landing gear or without it, I chose
to install mine since I fly from a paved runway. It just bolts
in place as seen in the picture. The tail skid is a piece of ply
with a washer glued in the middle of it, I mounted it in place
with thick CA.
belly pan was assembled and then glued to the bottom of the wing
with thick CA, I also glued the canopy on with Canopy glue, and
the cooling exit with thick CA. The Machine guns are small carbon
rods and once I slid them in place in the correct order I used
thin CA to glue them in place. These finishing touches didn't
take long at all and there were no difficulties in mounting them.
the time to install the included Decals as they really make the
plane look great. The decals were also pre-cut so the time to
install them is drastically reduced!
it! the P-47 was now complete.
assembled the P-47 to check the CG and I noticed the included
wing mounting bolts were only long enough to screw in about 2
turns, which I was not comfortable with so I replaced them with
longer ones I found at my Local Hobbystore, they are Metric.
balance came out perfect, at 2 1/4 back from the leading edge
of the wing, with the 3s Battery pack right in the middle of the
tray, the control throws were setup per the manual as follows.
High rate - 3/8" up and down
Elevator Low rate - 15/64" up and down
High rate - 13/64" up and down
low rate - 1/8" up and down
High rate - 1" right and left
low rate - 11/16" right and left
are suggested starting rates and can be adjusted to your flying
style, I later bumped all of the throws up a bit.
took the P-47 out on a windy day, but it was the nicest day
we have had in Months. The battery was hooked up and all the
controls checked and it was ready to fly. Since there is no
steerable tailwheel, taking off in a crosswind can be a challenge
as it will go where it wants to. The power of the Electrifly
motor pulls the P-47 off the ground in about 10 feet so I just
hit full throttle to quickly get it off the ground.
the Air the P-47 is a very smooth flyer, I didn't notice any
tendency to tip stall or snap and it cut thru the wind with
throttle passes were in the 70mph range I would guess and it
was really quiet. I used a APC 9x7.5 Electric Prop on the P-47,
the manual calls for a 9x6 but I did not have one available.
Either one will work just fine. The power system pulled right
around 35 amps so it was within the ESC's limits and possibly
a little larger prop could be used but I found the P-47 to fly
very well with the 9x7.5 I didn't see a reason to change it.
rolls were very axial and loops were no problem as well. I flew
for around 6 minutes before landing, with some throttle management
they could be stretched a little longer.
the P-47 was easy, but it can come in a little fast, a good
trick is to let the prop "idle" at low RPM as this
will create drag to slow the plane down. I let one a friend
of mine fly it for the video and he commented it was one of
the nicest flying planes he has flown!
3 flights I noticed the tail skid had lost its washer and was
wearing down, I decided to replace it with a Dubro Micro Steerable
Tailwheel and used a pin stuck in the rudder for the steering.
hatch is held in place with magnets but with all the wire under
it from the battery and ESC it can be a tight fit. My Hatch
popped off twice in the air but the P-47 fly's fine without
it. I now use a clear piece of tape as well, but you could add
more or stronger magnets.
The Great Planes
P-47 is a great addition to your Warbird or your Combat fleet. It
is a smooth flyer with no bad habits and goes together quickly.
With the recommended power system it has plenty of power to get
off the ground in a hurry and for full throttle passes. It looks
great in the air and I would hate to crash it flying combat, but
im sure lots of you will. :) The Great Planes P-47 is available
at your local Hobby shop or online so be sure to get yours in the
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