SJM 400-C Pro uses is the pure carbon filament fuselage and the liner, not only reveals the noble makings, all has the incomparable superiority in the weight and the intensity aspect.
SJM 400-F Pro uses the Fiberglass filament material quality manufacture fuselage and the liner and so on, it is great for some high quality request player.
2. The rotor head color turned the primary color
and black matching by the champagne gold, we likes this kind of design,
it is cruel specialized.
3. A main connecter ball link has completely used new can adjustable loose
& tide a ball link, then regarding the installment, opened the solution,
the attrition maintenance is more convenient.
4. The Swashplate partial changes biggest, all
much bigger than the before SJM helicopter any section Swashplate size,
this improvement to increases the control precision to have keep to the
suitable place.
5. The foot rest intensity passed through the beefed-up design, when you
saw behind the picture will understood.
7. Main motor have big change, besides lengthened the stator size, makes its margin of power to be bigger, has also installed the initiative radiation ventilator in the motor rear part, to reduces the motor temperature to be able to display the certain potency.
