Spark, Jr by BMJR Model Products. Rubber powered free flight for Embryo Endurance Event. Wing span 19 1/2" Wing area 50 sq. in. Laser cut parts, Full size plans, Complete hardware pack and photo illustrated instructions. Availability: Usually ships in 2-3 business days. B-211Regular price: $26.75Sale price: $24.75 July Special! Take $3 off any order over $50 which includes a Black Hawk Model with code word BHM. Every order over $25 will recieve one FREE package of Control Line Connectors.