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Copyright Maxford USA 2017

 

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S171201

 

GLOW/ELECTRIC

 

60-INCH

 

WINGSPAN 

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INSTRUCTION MANUAL

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

This Neptune Boat Plane ARF Twin is the twin-engine version of our earlier single-engine Neptune. 

The engine pods sit atop carbon-fiber tubes large enough for any wires you may need to install between 
the engine pods and the fuselage. The supplied three-piece engine pods may be used for 40-class glow 
engines, throttle servos and fuel tanks or for electric motors. 

Both aileron servos are located safely inside the fuselage near the center of the wing. The wing rod is a 

lightweight composite material. The nose compartment is the perfect location if you decide to add an 
onboard glow-plug driver, for an electric power system’s ESCs and flight batteries, or to add any weight 
to fine-tune the center of gravity. (The hatch arrives out-of-the-box covered 
over. To access this compartment, simply cut the covering material around  
the edges of the hatch.)  

You could also enjoy this airplane on land with the optional landing- 

gear and tail skid set as pictured at the right. Its color scheme is bright 
and visible both in the air and on the water. 

We invite you to enjoy the pride of ownership and the joy of flying this  

high quality balsa, carbon-fiber, fiberglass and light-ply almost-ready-to-fly aircraft. 

 
 
 

 
 

Table of Contents: 

I. 

Specifications  

 ...................................................  

 

 

VI. 

Safety precautions & assembly tips  

 ..................................  

 

 4 

II. 

Parts list  

 .............................................................  

 

 

VII. 

Limited warranty, liability waiver & return policy   ......    5 

III. 

Special features  

 ................................................  

 

 

VIII.  Photo instructions and assembly notes   .........................    6 

IV. 

Important things customers must know  

........  

 

 

IX. 

Initial setup, adjustments and preflight checks   .............   11 

V. 

Storage, field setup & preflight checks  

 ........  

 

 

 

 

  

Summary of Contents for Neptune Boatplane ARF Twin

Page 1: ...g driver for an electric power system s ESCs and flight batteries or to add any weight to fine tune the center of gravity The hatch arrives out of the box covered over To access this compartment simpl...

Page 2: ...d precut slots Composite wing joiner control horns and related hardware except items normally supplied with servos engines and motors Aileron rudder and elevator pushrods and related linkages This ill...

Page 3: ...ensions and glow plug driver wires if used or motor wires if using an electric power system then lift the wing fully away from the fuselage If desired for transport or storage the wing panels may also...

Page 4: ...e study the instructions and test fit each part to ensure you fully understand the instructions and that no parts are missing damaged or unsatisfactory Some parts may differ slightly from those pictur...

Page 5: ...to cut or abrade skin 21 This model may include plastic fiberglass and or carbon fiber reinforced parts If you ever drill grind or sand any such part wear safety goggles a particle mask and rubber gl...

Page 6: ...yer 3 Returned merchandise that is accepted by Maxford USA for credit is subject to a 10 to 20 restocking fee the final amount will be determined by Maxford USA upon receipt and examination of the ret...

Page 7: ...in the front of the pod Connect the tank s clunk line to the carburetor and the vent line to the muffler Mount your propeller onto the engine then position the pod on its pedestal so the pod s lower...

Page 8: ...e control rod into the predrilled hole in its aileron Before the epoxy has time to thicken insert the CA hinges into their precut openings in the aileron and in the trailing edge of the wing panel Mak...

Page 9: ...ach aileron and the adjacent trailing edge of its wing Twist a clevis onto one end of an aileron pushrod Insert the pushrod s other end into the opening on the EZ Link connector then attach each ailer...

Page 10: ...e tip of a hot soldering iron to burn or carefully cut and remove enough covering material from the bottom of the elevator pushrod fairing and the top center of the horizontal stabilizer to obtain goo...

Page 11: ...er tighten the wing retaining screws in the blind nuts in their wing saddle mounting blocks NOTE some flying boat fans like to create an improved water seal at the wing saddle by adding weather stripp...

Page 12: ...screws clevises and other connections throughout the airframe are secure 6 Double check the control directions of the throttle ailerons elevator and rudder 7 As with all radio controlled model airplan...

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