Looking here I'd say it's a single:
http://www.vectorflight.com/FAQs.htm...g%20Advantages
No holes in the tail on the uncovered fuse:
http://www.vectorflight.com/images/Img110.jpg
Positions under the canopy for three servos... rudder, throttle, elevator:
http://www.vectorflight.com/images/Img120.jpg