This is the final part of Boeing 737-300 building video series. In this episode I am going to share with you the rest of the build to finish this RC airliner which are, making dummy engines, motor mounting, install electronics like ESC, servo and pushrods, paint and decal and finally its maiden flight. At first the CG is wrong (12 cm) and almost crash, the correct CG is 17 cm from trailling edge. On this build I learned more about CG and the first time using that type of retract landing gear.
I redesign my old plans on this GA8 Airvan RC plane model. This new version has better performance on flight, more lift, more stable and easier to control. I made the airfoil thicker than the first version. This model is made out of 5 mm polyfoam or depron foam sheet. I choose FlyStark livery because I think that's the coolest Airvan color scheme on the net. This livery decal also shared along with the plans. If you enjoy my Cessna 172 model you will enjoy more, building and flying this model and it's easier to build and fly. It only needs 4 servos, there's no steering on the front landing gear, you can't turn on taxi but the rudder is enough to steer the plane when it's running for take off. The wing and wing struts are detachable for easier transport. I also include 2D pics for 2 pilots and 4 passengers to add realness of the model.
In this episode we'll making wing mounting, tail section and stabilizers. The tail section and stabilizers construction are pretty straight forward and all made out of foam sheet, no need for hard spars. Only the vertical stabilizer that needs a small plywood part. The plane so far is very light weight, just like I expected. The one that I have not expected is that, I thought the tail will be tilted downward because of its weight, but it isn't, so that's a good thing.
This is my first model that is using EDF or Electric Ducted Fan. I choose the C variant of F-35 aircraft, mainly because it has bigger wing, I wanted to make sure that it will have enough wingloading to fly. In this model I also share with you couple new things beside by using EDF alone. I share how to make a clear canopy and using servo driven retractable landing gear. The landing gear was bought from Banggood for about 10 dollars a long time ago. What I learned by using EDF is, it's pretty expensive if compare with pusher prop and will fly in a shorter time. I only have effectively 2,5 minutes to fly the jet, the rest is prepare for landing. You have to use 4S 2200mah with minimum 60C discharge rate, otherwise you will have a damaged battery after the first flight. Also EDF models need a decent paved and long runway. If you can access one, EDF jet is amazing.
In this episode on How to Make RC Airliner Boeing 737-300 part 2, I'm going to share with you on how to build the wing and install
the retractable landing gear to the wing and how to join the wing. In the beginning I also made a tutorial on how to build the belly
wing fairing on the fuselage. I switch all wheels from original 45mm foam wheel to 70mm rubber wheel, to match the scale size of
the real aircraft wheels. As I mentioned on part 1, I will make this aircraft model as light as possible so I made an unordinary
joining system for the 2 pieces wings. The 2 wings just held together with U shape stainless wires on top of the wing and plastics
and screws on the bottom side. The jointed wing, next on part 3 will be mounted with 4 screws to the fuselage, thus will make the
wing stronger on the joint.
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Julius Perdana [a.k.a Julescrafter] is a self-taught graphic designer and 3D modeler of architectural animation. Despite a background in architecture, he began his career as a graphic designer for a printing company in 2001. Having co-founded two small graphic design companies he now fully works as a papercraft artist and an online publisher. Paper modeling is his hobby since he was a kid back in 1992.
