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Tower Hobbies - TOWA4035   667300040350 0667300040350
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Tower Hobbies 1/5 Piper J-3 40 Cub ARF.40-.46,81"
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Tower Hobbies 1/5 Piper J-3 40 Cub ARF.40-.46,81"
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Instruction Manuals: Manual 1 (14.11 MB)

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Tech Notes
This is the Tower Hobbies, Radio Controlled, Glow Powered
Almost Ready to Fly 1/5 scale Piper J-3 Cub Airplane.
Designed for the Beginner to Intermediate Flier.

90% Factory-Built and Truer to the Original Plane than Most other R/C versions.


Construction: Balsa and ply
Covering: High quality shrink film
Cowl: Painted fiberglass
Wing: One-piece 81" bolt-on wing, IMAA legal, wood struts are
pre-sanded into an airfoil shape for a more authentic look than
flat struts, and also to minimize drag, Struts are REQUIRED to
safely fly this airplane. It must not be flown without struts
under any circumstances
Aileron Control: Dual servo, with "barndoor" type ailerons for
greater realism
Engine Mount: Two-piece composite construction, Adjustable
Landing Gear: Prebent wire, 3-3/8" (85.5mm) foam tires, 1" (25.4mm)
Fuel Tank: 9.1oz (270cc)
Build Time: Flight-ready in 15-20 hours,
Warranty: Tower Hobbies guarantees this kit to be free from defects
in both material and workmanship at the date of purchase. This
warranty does not cover any component parts damaged by use or


Photo Illustrated Instruction Manual, Decals, One-Piece Pre-Painted
Fiberglass Cowl, ABS Dummy Engines, Adjustable Engine Mount,
Hardware Package, Factory-Built Fuselage, Wings and Tail Sections,
Fuel Tank, Firm 3-3/8" Foam Tires Mounted on Cub Rims, Pre-Bent
Wire Landing Gear, Pre-Built Wing Struts, Clear Butyrate
Windshield and Side Windows, Pushrods, Tailwheel Wire w/1"
Tailwheel, CA Hinge Strip


Wingspan: 81" (2055mm)
Wing Area: 984 sq in (63.5 sq dm)
Wing Loading: 19.9 oz/sq ft (61 g-sq dm)
Fuselage Length: 49" (1245mm)
Weight: 8.5lb (3860g)
Airfoil: Clark Y-Type, Flat-Bottom, High-Wing
Center of Gravity: 4" (103mm) back from the leading edge of the wing.
Control Throws: High Rate Low Rate
Elevator: Up & Down 1-1/8" (28mm) 5/8" (16mm)
Ailerons: Up & Down " (19mm) 9/16" (14mm)
Rudder: Right & Left 1" (38mm) 1" (25mm)


Engine: .40-.46 cu in 2-stroke (Some modifications required) or
.52-.70 cu in (8.0-11.5cc) 4-Stroke
Muffler: Sport or Pitts Style to fit into the cowl
Radio: 4 Channel w/5 standard servos
Y-harness: 1 for aileron servos
18" Servo Extensions: 2 for aileron servos
Misc Items: Propeller, Medium Fuel Tubing, " Latex Foam Rubber,
Fueling System, 8-32 Tap/#29 Drill Bit, Building and Field
Equipment, prop nut to match engine's crankshaft size.


This model does not have float mounts in it. The model would need to
be modified to accept floats. The GPMQ1874 60-size Float Kit will
work with this kit.

If a replacement fuel tank is needed, an 8oz (240cc) tank such as the
SULQ1439 can be used. Some minor modification may be needed as this
is not the exact shape of the original tank.

About joining wings- pg.6 of instructions says to test fit the wing
halves and to sand any high spots on the root end of the wings so
there is no gap when you join them. If there is too large a gap to
sand away, it may be shimmed with a piece of balsa and balsa filler
or epoxy. The idea is that the wing is straight upon assembly,
and has no twisting motion at the joint. Epoxy gives more weight
than balsa filler, or micro balloon filler which can also be used
to fill the gap. This wing is flat-bottom and can be assembled on a
flat surface. The landing gear wires are taped to the underside of
wing support cardboard.

mgc 4/7/15

– If you need more information, use these Tower Hobbies resources –
Web Site:
Phone: 217-398-8970
  Postal Address:
Tower Hobbies
PO BOX 9078

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Accessories Needed
This is the Glow Powered, ARF .46 Piper J-3 Cub from Tower Hobbies. FEATURES: Balsa & ply construction, 81" IMAA legal wing, heat shrink film covering, barn door ailerons, adjustable composite engine mount REQUIRES: 4ch radio w/5 servos, Y-harness, extensions, 40-.46 cu in 2-stroke or .52-.70 cu in 4-stroke engine, muffler, fuel, prop, bldg & field equip.

Accessories for the Tower Hobbies 1/5 Piper J-3 40 Cub ARF.40-.46,81"

Primary Accessories Radio & Engine Equipment Building & Field Equipment Optional Accessories
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
 LXK129 Great Planes Silicone Fuel Tubing Standard 3'
Qty Discount Available
2.99   In Stock
 LXK134 Great Planes Ultra Precision Fuel Filter
Qty Discount Available
3.79   In Stock
 LXK135 Great Planes Easy Fueler Valve Glow
Qty Discount Available
13.99   In Stock
 LXL430 Hobbico Latex Foam Rubber 1/4"
Qty Discount Available
3.99   In Stock
 LXDGMA Tactic Servo Extension 24" Universal
Qty Discount Available
4.49   In Stock
 LXDGME Tactic Y-Harness 20" Futaba J
Qty Discount Available
8.99   In Stock
 LXHY28 Top Flite 11x6 Power Point Propeller
Qty Discount Available
3.19   In Stock
 LXRXC4 Tower Hobbies TOWER Power 10% Airplane Fuel Quart
Qty Discount Available
9.19   In Stock
Subtotal for this Group of Accessories: 55.11  
Click to Order all items listed in this Group of Accessories    Buy This group of Accessories

Primary Accessories Radio & Engine Equipment Building & Field Equipment Optional Accessories

Tower Hobbies Has Been Serving Hobbyists Since 1971 • Call 800-637-6050 or 217-398-3636
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