BT20 to BT50 Centering Ring Assortment 20 pk- ACCR2050

20 Centering Rings: Heavy duty rings for centering tubes BT20 tubes into BT50 tubes - Estes model ro..

$9.35 $16.92

Skystreak - AC Supply AC 5001

Inventing Flight Skystreak - Indoor Flying - We took the Guillows Skystreak and went one better. We ..

$61.15 $77.99

Skystreak - AC Supply AC 5002

Inventing Flight Skystreak - Outdoor Flying - We took the Guillows Skystreak and went one better. We..

$61.15 $77.99

Jetstream - AC Supply AC 5501

Jetstream - 25pk with competition rubberUsed in the Around the Pole event demonstrated by the AMA Ed..

$76.88 $98.99

Engineering & Stress Analysis Blocks - AC6206A

These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module."  They have a 3..

$1.19 $1.89

Engineering & Stress Analysis Blocks - AC6206AX

These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module."  No hole drill..

$0.94 $1.39

Engineering & Stress Analysis Blocks - AC6209A

These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module."  3/8" hole dri..

$1.64 $2.59

6 Station Winding Stooge - AC7732

6 Station Winding Stooge - Wind your rubber models without anyone's assistance!  Let your stude..

$219.99 $299.99