Seagull KA8B 3M Glider (SEA-137B)

The KA8B is a beautifully presented 3-metre (118") semi-scale glider that delivers smooth, stable soaring performance with authentic vintage style. Built from lightweight balsa, plywood, and veneer, this ARTF model offers a strong yet refined airframe, perfect for thermal flying and slope soaring.

With its high-wing layout, long tail moment, and gentle handling, the KA8B is ideal for intermediate to advanced pilots. The model comes mostly factory-assembled with pre-hinged surfaces and pre-installed pushrods. Functional airbrakes, an authentic canopy, and scale outline give it classic character in the air and on the ground. Whether towed or launched via electric conversion, this glider offers a satisfying and relaxing flying experience.

About the original:
The Schleicher KA8B is a German single-seat glider developed in the 1950s for club and training use. Known for its forgiving flight behaviour and excellent thermal performance, it quickly became a favourite among gliding clubs worldwide. With its distinctive open cockpit and traditional construction, the KA8B remains a much-loved classic in soaring history.

Seagull KA8B 3M Glider (SEA-137B) Key Features:

• Approx flying weight - 6.2lbs (2.8Kg)
• Factory covered with Oracover
• Flying skill level - INTERMEDIATE to ADVANCED
• Length - 57.1ins (145cm)
• Radio - 6 Channel with 7 servos (4 x HS85) and (3 x HS311)
• Type - Glider
• Wing area - 899.sq.ins (58dm)
• Wingspan - 118.1ins (300cm)

What's in the Box:

• 1x Factory assembled and covered fuselage.
• 1x Factory assembled and covered 2-piece wing set.
• 1x Factory assembled and covered tailplane.
• 1x Hardware pack

Needed to Complete:

• 1x 6-Channel computer transmitter and receiver combo.
• 4x MN48 mini servos.
• 2x Suitable high-quality servos.
• 1x Protective foam for radio system.

Manuals & Parts Explosions:

Seagull KA8B 3M Glider (SEA-137B) Tech Specs:

• Approx. Flying Weight: 2.8kg / 6.2lbs
• Shipping Weight: 4.60kg / 10.14lbs
• Product Length: 1,450mm / 57.1in
• Product Wingspan: 3,000mm / 118.1in
• Product Wing Area: 58dm2 / 899in2

• Completion Level: ARTF
• Experience Level: Array
• Age Recommendation: 14+
• Recommended Usage Environment: Designated R/C model flying site
• Channels: 6
• Colour: Yellow
• Material: Balsa

• Brand: Seagull
• Part No: 5500086
• Barcode: 505112121074
• Assembly Level: ARTF (Almost RTF)
• Flying Style: Gliders