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The plane is very light compared to other warbirds of this size. It is as much as 10 lbs lighter, so take 
offs and landings are much easier. Don’t fly it in with flaps at 30 mph. With flaps, it is stable at almost 
walking speed. 

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While it can torque roll and hover, it is not an aerobatic plane with giant stabs and rudder, with a thick 
wing and a giant diameter prop. It will take more time to recover from 3D maneuvers, so don’t push it 
close to the ground until you are very familiar with it. 

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You need access to the cowl screws and wing bolts after you install all the equipment. Keep checking 
that you can get your hand and tools to these screws. Don’t mount a battery pack or something right in 
the way. 

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Make the fuel tank easily removable with Velcro so you can move the tank out of the way so as to get 
your hands into the front of the fuselage for maintenance reasons. 

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Most everything is hidden from view under the canopy. This includes the fuel dot, air fill valve for the 
retracts, air pressure gauge, cowl screws, wing bolts, Rx switch and ignition switch. Don’t cut any holes 
into the airframe for this stuff! The hatch pops off with a single latch for easy access to these items to 
keep the plane neat and clean. 

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The plane is made to stay on the gear will the servos extensions in the fuselage and the air lines all 
connected permanently. Try to leave the center section of the wing on the plane permanently so you 
don’t have to mess with these connections all the time. All you need to do is plug in the ailerons and 
install the wing tips which is a 2 minute job. 

 
INCLUDED WITH THE KIT: 
Be sure to inventory all the parts 

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3 piece wing 

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Fuselage 

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Canopy 

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Fuel tank 

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Fuel line 

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(4) ¼-20 blind nuts, 2” 1/4-20 bolts, ¼-20 locknuts, ¼-20 washers for engine 

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All servo arms, horns, cable and clevis. (The servo arms require metal servo wheels or Air Wild unihubs 
to attach to).  

 
COMPONENTS NEEDED TO COMPLETE THE KIT 
Be sure to have all the parts on hand to hasten installation 

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DA-85 with special hidden muffler is the engine of choice. Many other engines will work well, from 
50cc up to 85cc. A Zenoah G-62 offers great power. 

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Propeller: a three blade is scale. A Menx 24x14 is a good high speed 2-blade for an 80-85cc engine. 

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We offer the proper 6” spinner in either red or olive drab color 

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two Sullivan #562 4-40 snap links for choke and throttle 

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two Sullivan #584 graphite push rods 

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two Hitec HS225 servos for choke and throttle 

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seven metal servo wheels to use included servo arms, or metal servo arms. 

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Seven high torque metal gear servos. We use Hitec HS-7955 for the highest performance, though Hitec 
HS-645 servos work OK for general flying. 

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Six 1.25” MPI metal servo arms. This offers the proper amount of throw and torque as well as being 
long enough to exit the servo hatch properly. 

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Y-harnesses for the ailerons and flaps and elevators depending on your receiver. It is much easier to set 
up if each servo is on its own channel, though you can use Y-harnesses if necessary.  

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Two 2’ servo extensions which stay inside the center section of the wing for the ailerons if you do not 
use a Y-harness. Use two 12” extensions with a 12” Y harness if you prefer. 

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Two 3’ servo extensions for the elevators. Use a single 2’ extension with a Y-harness if you prefer. 

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Two 6” servo extensions which connect to the ailerons and remain in the outer wing panels. These 
connect to the servo extensions in the center wing panel. 

Summary of Contents for P-40

Page 1: ...l the air valve pressure gauge fuel dot and switches Optional spinner is CF painted in Olive Drab or Red Optional muffler for DA 85 is available Ailerons and Flaps are properly hinged at the factory I...

Page 2: ...Be sure to inventory all the parts 3 piece wing Fuselage Canopy Fuel tank Fuel line 4 20 blind nuts 2 1 4 20 bolts 20 locknuts 20 washers for engine All servo arms horns cable and clevis The servo ar...

Page 3: ...el line Loctite ASSEMBLY SEQUENCE PLEASE FOLLOW THE ORDER AS FOLLOWS FOR THE EASIEST INSTALLATION QUICK OVERVIEW 1 Rx switches and temporarily mount a battery 2 Rudder and tailwheel 3 Engine 4 Muffler...

Page 4: ...servo arm SWB 3 is recommended Install 4 ball links for the rudder and tailwheel steering as shown in photo Use the outside holes on the servo arm for the rudder and the inside servo holes for the tai...

Page 5: ...s to the choke and throttle arm of the DA 85 engine b Use the DA 85 template to drill 4 mounting holes c Use provided bolts blind nuts washers and locknuts to install engine Blind nuts alone are not s...

Page 6: ...tery switch and regulator to the ignition then install the ignition using Velcro Mount all these items inside the fuselage as far forward as possible Mount the switch in the dash board of the fuselage...

Page 7: ...d nut Without securing the muffler in some way the muffler will break in a variety of places In the photo above note the TBM overflow fitting installed It is a brass bulkhead fitting in the right side...

Page 8: ...haust stacks by bending them inwards as is done on Sullivan mufflers This definitely helps reduce noise but also lowers top rpm if you make the openings very small Just experiment a little In the phot...

Page 9: ...ll link to the Sullivan 584 push rod b Install two Hitec HS 225 servos as shown with arms pointed down c Connect throttle and choke linkage Make stand offs to hold the linkages using scrap wood if nec...

Page 10: ...e is the same for a few minutes then retract the gear and check again in a few minutes It s bad news when they leak in the up position and not the down position and you don t realize it until you are...

Page 11: ...r retract the landing gear on a maiden flight I leave that for a maiden flight of its own If you go to church pray for your gear to work 8 Wing Servos a Install the servos using metal servo arms as sh...

Page 12: ...ation 9 Glue in the wing spars a Trial fit everything Then glue the spars into the outer wing sections using Hysol Install the wing onto the plane to let the glue harden so that it lines up properly 1...

Page 13: ...Just separate the wing tip from the wing center section enough to get one finger onto the center section of the wing just in front of the spar and lift 14 Set up a Like most warbirds if you fly it lik...

Page 14: ...is correct If the plane climbs add weight to the nose e We did not remove all the dihedral so the plane rolls in the direction of the rudder Right rudder makes the plane roll to the right Also right o...

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