AT A GLANCE
Model Name: Savage Shock Cub
Manufacturer: Seagull Models
Distributor: Legend Hobby (legendhobby.com)
Wingspan: 102 in.
Pilot Skill: Intermediate
Assembly Time: 20 hours
Radio Req'd: 7-channel
Power Req'd: 35-55cc gas or electric equivalent on 12 cells
Seagull Models has decided to throw their hat in the Cub appreciation ring with this 102-inch-span RC Savage Shock Cub designed for 35cc to 55cc gas engines or electric equivalents. Available in two color options, silver and black or yellow and black, this all-balsa and plywood airplane features many of the same amenities as its full size-counterpart: leading-edge slots, shock-absorbing landing gear, and even load-bearing wing and tail bracings. Add to that a semi-complete interior with functional side door and you have a surprisingly detailed ARF model.
The kit includes re-usable bubble protection bags for the wings. Each wing panel is quite big, so this is a significant freebie. Ailerons and flap control surfaces are pre-installed and their hinges already glued where needed.
The fuselage is light and well built with the cockpit interior painted black at the factory. On the right side of the fuselage is a large door hinged to lift up; it’s held in place via a few strong magnets. A small friction keeper pin is mounted to the right-wing and is used to hold the door open by holding on to the door handle. Inside, the fuselage floor has servo cutouts for tail controls, throttle, and optional choke servo. Of particular note is the wonderfully machined aluminum tail wheel assembly, which has a ball-bearing pivot and metal leaf-spring suspension.
The telescoping undercarriage struts are very effective. Spring tension seems a bit stiff when played with by hand, but once the full weight of the model applied, the tension seems just about perfect for absorbing hard landings and rough surfaces. Lots of hardware is included, such as control rods, fuel tank, inflatable tundra wheels, and the like. Even mounting hardware for both gas and electric powerplants is included. There is also a nice slide-in battery tray for electric-powered setups.
I couldn't help but think that the large wings are an aerodynamicist’s dream: recessed hinged ailerons, offset hinged flaps, and movable leading-edge slots. These slots, which help redirect air over the wing at slow speeds and high angles of attack, don't move in and out but rather pivot on an angle while linked to the flaps. A double linkage to the flap servo simultaneously controls both flaps and slots.
The power setup I chose to use was the new RCGF Stinger 40cc twin cylinder gasoline engine. I've run RCGF engines in the past and have found them powerful and very reliable. This would be my first twin cylinder from them. Fortunately, the engine fit in the fiberglass cowl with some room to spare. While the kit comes with a nice plastic spinner with metal backplate, it was just a bit too small to work with the 20-inch wood prop, so I elected to use a 3.25-inch Tru-Turn aluminum spinner pre-drilled with the engine's four bolt pattern. I used Spektrum A6380 high-voltage digital servos throughout the model.
IN THE AIR
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