J3 Super Cub Foam Board Kit – 1010mm Wingspan

The J3 Super Cub Foam Board Kit is a semi scale foam board RC trainer from The Flite Lab Rapid Build Series, designed for smooth, predictable flying and short field performance. With a 1010mm wingspan, 703mm fuselage length and a typical all up weight of around 560g, it offers high wing stability, gentle stall behaviour and the ability to lift off and land in relatively short distances while still looking like a classic Cub in the air.

The airframe is built from precision laser cut Creator Foam and ply parts, with carbon pushrods and piano wire Z bends used for the control surfaces. The high wing layout with built in dihedral gives natural stability, which helps new pilots keep the model level and under control, while the generous wing area and large wheels improve ground handling and allow operations from typical club or park field grass. More experienced pilots can use the same airframe to practise realistic scale style flying, including coordinated turns, slips and crosswind approaches, rather than extreme aerobatics.

Electronics are based around common, affordable gear so that the finished J3 Super Cub remains cost effective. The recommended setup uses 4x 9g servos, a brushless motor of roughly 800g thrust at about 1700KV, a 9x6 electric propeller, a 30A ESC and a suitable 3S LiPo pack, driven by at least a 4 channel transmitter and receiver. A detailed build manual is available as a downloadable PDF under the attachments tab, walking you through the assembly, setup and first flights so that newer builders can follow along step by step and experienced pilots can get the model in the air quickly.

Typical uses

• First foam board RC trainer for pilots learning takeoffs, circuits and landings
• Semi scale Cub for relaxed evening flying and short field operations
• Everyday club and park flyer for touch and go practice and ground handling drills

Key features

• 1010mm wingspan foam board RC trainer with semi scale J3 Super Cub outlines
• High wing design with dihedral for natural stability and gentle stall behaviour
• STOL capable with large main wheels and separate tail landing gear
• Precision laser cut Creator Foam and ply construction for an accurate, repeatable build
• Carbon pushrods with piano wire Z bends for robust, simple control linkages
• Designed around standard 9g servos, 30A ESC, 1700KV brushless motor and 9x6 prop
• Supplied with a full downloadable build manual for straightforward assembly and setup

Specifications

• Wingspan: 1010mm
• Length: 703mm
• Typical all up weight (AUW): 560g
• Wing loading (WL): 30.3g/dm²
• Construction: Creator Foam and plywood, laser cut
• Recommended motor: brushless outrunner around 800g thrust, approximately 1700KV
• Recommended propeller: 9x6 electric propeller
• Recommended ESC: 30A
• Radio gear: minimum 4 channel transmitter and receiver

What is included

• Precision laser cut foam parts for fuselage and wing
• Laser cut plywood parts including motor mount, control horns and bonus keyring
• Carbon pushrods with piano wire Z bends
• Large main wheels with wheel collars
• Tail landing gear
• Battery straps
• Decal sheet
• Downloadable J3 Super Cub build manual (see attachments tab)

What you will need

• 4 x 9g servos
• Brushless motor of around 800g thrust, approximately 1700KV
• 9x6 electric propeller matched to your motor and battery
• 30A ESC
• 3S LiPo battery of suitable capacity
• At least a 4 channel transmitter and receiver
• Foam safe glue and basic hand tools for foam board building

Build and flying difficulty

• Build difficulty: 2/5, easy build using common foam board techniques
• Flying difficulty: 2/5, forgiving trainer style handling for newer pilots