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SIG Curtiss Jenny, Assembly Manual, Page: 5 / 12

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4

Chargers:

If your transmitter has rechargeable batteries, use the charger that is supplied or recommended by the manufacturer.  This is 
usually a slow charger (overnight).  Although there will be some variation from transmitter to transmitter, the average fully charged 
transmitter battery will provide around two hours of operation.  

The airborne battery charger is an extremely important piece of equipment and failure to select an acceptable charger or improper
operation will cause performance problems and unsatisfactory results.  A majority of performance related problems can be traced 
directly to improperly or incompletely charged batteries.  

To charge the recommended battery pack you MUST have a charger that is capable of performing peak detection charging of NiMH
(Nickel Metal Hydride) batteries.  We used an Astro Flite 112D charger.  This unit is capable of charging at different rates and uses a
12 volt power supply such as a car battery.  Other chargers can be used as long as they have capabilities similar to the Astro 112D.

Before Beginning Assembly

Take your time and follow the assembly instructions carefully.  The foam parts of your Jenny can be dented easily so be gentle.  To
help protect your model during assembly, cover your work bench with a towel or a piece of indoor/outdoor carpet.  Use only the glues
specified or you will damage the parts.  Specifically, DO NOT use C/A Glue on any of the foam parts or they will be damaged.

Twist tube to bevel

Remove burrs from ends

Slight bevel on inside

Fuselage Straight

Fuselage Bent

Fuselage side (cross section)

Apply epoxy sparingly to inside

edge of one fuselage side

as shown.

GOOD

BAD

Assembly Starts Here:

1...Use a small piece of 220 grit sandpaper to remove any
burrs from the ends of the two 4mm x 3-11/16” Aluminum
Wing Tubes.  Now use your  hobby knife to slightly
bevel/sharpen the inside of one end of one tube as shown.

2...Prepare the fuselage sides for assembly by taking the
sharpened end of the aluminum tube to open up the four holes
in the fuselage sides.  Lay the fuselage side flat on a firm 
surface and gently press the tube into the hole with a twisting
motion to finish cutting through the fuselage sides.  Next, use
your Hobby Knife to open up the pushrod holes in the rear of
each fuselage side.  Finally, lightly sand the mating surfaces
of both sides to remove any flashing from the foam.

3...Carefully apply 30 minute epoxy to one of the fuselage
sides as shown.  Since the epoxy is many times stronger than
the foam, you only need to use a small amount to bond the
fuselage sides together.  By applying the epoxy in this manner
you will eliminate having a lot of epoxy squeezing out on the
outside of the model.  We recommend using #32 rubber bands
to hold the fuselage sides together until the epoxy hardens.
Use care to make sure that the fuselage is straight and not bent
or twisted.   NOTE: You can also use low-tack drafting tape to
hold the fuselage sides together if preferred.  However, use
caution because tape can pull the paint off the model if the
adhesive is too tacky. Use tape only on areas of the model that
will not be seen after it is completely assembled.

Summary of Contents for Curtiss Jenny

Page 1: ......

Page 2: ...r World War I the Jenny was used in many new unforeseen roles For instance a Jenny flew the first official airmail flight in the U S in 1918 The first airplane that most Americans of that era saw in person was a Curtiss Jenny usually being flown by a civilian barnstormer an gypsy pilot trying make a living traveling from town to town selling rides in his government surplus Jenny Cheap easily repla...

Page 3: ...rs Bag 7 SIGRPTF293 1 Jenny Foam Horizontal Tail Stabilizer Elevator 1 Jenny Foam Vertical Tail Rudder Fin Bag 8 SIGRPWK293 1 Jenny Top Wing 1 Jenny Bottom Wing Bag 4 SIGRPMGDU293 1 Sig180 Class Power System 2 3 x 10mm Phillips Head Sheet Metal Screws Kit Contents Do a complete inventory of your kit before starting assembly Bag 2 SIGRPWB293 1 Jenny Wooden Parts Die Cut Sheet Bag 3 SIGRPCW293 1 Jen...

Page 4: ...one with four or more channels that will allow you to fly more advanced models in the future Airborne Radio Components We used the HiTEC FEATHER PACK which is a package offered by HiTECH of ultra light airborne components for small electric models like the Jenny Other radio companies may offer a similar package of light weight airborne components The HiTEC FEATHER PACK includes a FEATHER 4 ULTRA L...

Page 5: ...ve burrs from ends Slight bevel on inside Fuselage Straight Fuselage Bent Fuselage side cross section Apply epoxy sparingly to inside edge of one fuselage side as shown GOOD BAD Assembly Starts Here 1 Use a small piece of 220 grit sandpaper to remove any burrs from the ends of the two 4mm x 3 11 16 Aluminum Wing Tubes Now use your hobby knife to slightly bevel sharpen the inside of one end of one ...

Page 6: ...OTE 3 4 wide tape is available at most office supply stores Use only clear tranparent tape Do not use frosted Scotch Magic Tape 6 Use a sharp new hobby knife to trim the foam tabs and excess tape from both ends of the horizontal tail and the top and bottom of the rudder 7 Use a small diameter dowel with a smooth rounded end or similar shaped object to indent the tape on each side of the tail surfa...

Page 7: ...gin to soak up the water Let the paper soak for at least 30 seconds and then carefully SLIDE the paper from the top of the decal DO NOT try to lift the paper from the decal as it will damage the decal Also after the paper is removed DO NOT try to move the decal on the model surface The decal is very thin and fragile If the decal has air bubbles under it use a soft cloth to pat out the bubbles maki...

Page 8: ...ransmitter on and place the throttle stick in the low position Now plug the airborne battery into the input side of the electronic speed control and the system is operational see NOTICE below Test the system by moving the right stick on the transmitter which should move the rudder and elevator servos Initially the motor is not armed and will not function when you move the throttle stick To arm the...

Page 9: ...d with a piece of Scotch Tape Allow the full length of the antenna to trail behind the model Do not cut the antenna to shorten it as that will reduce the reception range of your radio 18 Remove the cabane struts from the die cut plywood sheet and glue them to the fuselage sides using 5 minute epoxy They should sit on the ledges on the bottom of the pockets on the side of the fuselage When viewed f...

Page 10: ... do this turn the model upside down and support the model on your finger tips placed 1 2 back from the leading edge of the bottom wing Hold your fingers 20 Pre drill the two motor mount holes in the firewall with a 1 16 drill bit Use the two 3 x 10mm Phillips Head Sheet Metal Screws to attach the motor to the front of the model Feed the motor connector through the hole in the front of the fuselage...

Page 11: ...Press one Wheel Retainer onto each axle and slide it all of the way in as far as possible Now slide on the wheel plastic wheel cover Then install the outer Wheel Retainer Make sure the wheels turn freely 26 Attach the wings on the model using 4 rubber bands 2 for the top wing and 2 for the bottom wing We recommend putting the bottom wing rubber bands on first being carefull to line up the slots in...

Page 12: ...hy and to always fly your model in a safe location and in a safe manner The first test flights should only be made by an experienced R C flyer familiar with high performance R C aircraft JOIN THE AMA The governing body for radio control model airplanes in the United States is the ACADEMY OF MODEL AERONAUTICS commonly called the AMA The AMA SAFETY CODE provides guidelines for the safe operation of ...

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