All-up weight on my XL was 2518g, as opposed to 816g for my 2m; that’s a factor of 3.1! The XL is powered by a 1250Kv outrunner brushless motor driving a 12x4 propeller. That’s quite a bit more pulling power than the 480-type motor driving a 9.75x7.5 prop in the 2m – and the XL needs that additional power, and then some. I’ve been told that the 480 is rated at 920-960 Kv. Given the weight difference, that makes the XL look somewhat underpowered.
The parts were packed in three layers inside the box; repacking everything is like putting together a jigsaw puzzle. I recommend marking the foam inserts to indicate packing order. I also recommend modifying either the box or the rudder to allow repacking of the fuselage into the box. Keep reading for more on this.
Plane Features and Assembly
The spars are quite evident when you view the wing from the bottom (photo at right). Note also the control linkages from the wing-mounted servo to the spoilers.
For the size of the wing, the spoilers look undersized. They’re effective, but I think that another couple of inches could have enhanced their effectiveness.
On July 6, Horizon Hobby issued two service bulletins (linked below) dealing with apparent failure, in the early manufacturing process, to adequately secure stiffeners in the fuselage under the vertical stabilizer and the doublers that join the halves of the wing spars in the center section. It is the work of a half hour to correct this oversight with some thin CA. Subsequent models, identified with a sticker on the box or near the affected areas, will have had the defect corrected at the factory.
Service bulletin: fuselage/vertical stabilizer
Service bulletin: wing center section