The 49” Challenger, an aerobatic high-wing sportster, is an ideal model for skilled pilots who just want to have a little bit of fun; it would make a perfect first truly aerobatic plane for a weekend flyer as well.
The fuselage is of light balsa and plywood “box” design covered by the Oracover® iron-on film. It is prepared for installation of 500-600 W brushless motor using a radial mount (e.g. KAVAN C3542-1000, KAVAN PRO 3542-1150, Model Motors AXI 2820/12 etc. with 40-60 A ESC featuring powerful SBEC). Detachable hatches on the top and bottom of the fuselage are giving perfect access to the entire power system and RC gear. The elevator and rudder micro servos are to be installed into the tail end of the fuselage.
The two-piece all-balsa wing with a semi symmetrical airfoil uses a carbon tube joiner; the wing halves are secured with screws to the fuselage. The full span ailerons are controlled by a single servo each.
The empennage is a light all-balsa work.
The entire model is covered by the ULTRACOTE® iron-on film (ULTRACOTE® is the trade mark for the ORACOVER® film used in the USA.)
The main undercarriage features aluminium legs and lightweight large diameter wheels; the tail wheel with a carbon bracket is coupled with the rudder.
You will need 500-600 W brushless electric motor (e.g. KAVAN PRO 3542-1150 with 12x6-6.5” prop, 50-60 A ESC and 3S LiPo at least 30C 2,200-3,000 mAh; you should go for 40C pack if you are seeking 3D performance.
You will need at least 4-channel RC set to control your Challenger, a good 6-channel (or more) radio is preferred to enjoy the independent set-up of aileron servos. You will need 4 strong 17 g metal gear micro servos - a Sunday flyer should be happy with KAVAN GO-17MG or Hitec HS-85MG; 3D fun calls for something faster and digital, like KAVAN GO-1020MG.
The ARTF kit contents: Oracover® covered fuselage, wing and tailplane, aluminium main undercarriage, tail wheel assembly, wheels, set of accessories and instruction manual.
| Wing span [mm] |
1250 |
| Length [mm] |
1006 |
| Weight [g] |
1170 |
| Wing surface [dm2] |
27.4 |
| Build difficulty |
S1 |
| Operating difficulty |
P2,P3 |
| Controlled functions |
S,V,K(2),M |
