This is the Radio Controlled Riser 2 Meter Class Sailplane Kit by Sig.
Designed for the beginner or sport builder and flyer.

Features:

• Construction: Built-up balsa and ply
• Wing: Two-piece, attaches to fuselage with rubber bands
• Pushrods: Steel with flexible nylon tubing
• Tow Hook: 3/32 x 1-7/8 formed wire

Includes:

• Balsa and hardwood parts
• Decal sheet and tow hook rod
• Pushrods, Hardware
• Full-size plans

Requirements:

• Radio: 2-channel (elevator-rudder) w/2 standard servos or
• 3-channel (elevator-rudder-spoilers) w/3 standard servos
• Receiver Battery: 4.8V NiCd
• Covering: 2 rolls

Specifications:

• Wingspan: 78" (1981mm)
• Wing Area: 620 sq in (40 sq dm)
• Length: 41.5" (1054mm)
• Weight: 24 - 28 oz (680 - 800 g)
• Wing Loading: 6 - 7 oz/sq ft (18.3 - 21.4 g/sq dm
• Airfoil: Flat bottom
• Configuration: High wing
• Center of Gravity (CG): 3.5 - 3.9" (90mm - 99mm) back from the leading edge of the wing measured at the fuselage

Control Throws-

• Elevator (up & down): 3/8" (9mm)
• Rudder (left & right): 1-1/4" (32mm)