It has been a couple months now since I "dumb thumbed" my NTM PD 2700 Kv motor equipped Mig-35 into the ground at a rather rapid rate of knots... :/ May she rest in peace.
- the air frame is a "composite" build (three different types of foam used in construction), the internal structure, wing plate, nacelles, stabilizers and control surfaces are all made of 6mm Depron. The fuselage and canopy are made of Fli-Value XPS (MPF equivalent) from RC Foam, KF4 airfoils are made with paperless dollar store foam. I used Foam Cure glue for most of the construction, with a bit of hot glue or epoxy as needed. The KFs are attached with 3M Super 77 spray adhesive. Wing reinforcement is stock, and I added in a little extra in the back end to help keep the plane strong and stiff under the power and torque turned out by the NTM motor as you can see in the picture below. The extra reinforcements in the elevons, vertical stabs and back plate are all 3mm carbon tube. Control surface hinges are made using Foam Cure glue and fiberglass drywall tape.
- Power system is the NTM Prop Drive 2700 kv motor, 6x4 APC style prop, Turnigy Plush 60A ESC. For most flying, I will be using the Zippy Flightmax 2200 3S 40C discharge battery and for some really blinding speed once in awhile, I will be using the NANO Tech 1800 4S 25-50C discharge battery.
- Control setup consists of 6 servos, two 13 gr metal gear servos from RC Timer for the elevons and four 9 gr nylon gear servos from RC Timer for the rudders and ailerons.
- All grooves on the canopy, nose and fuselage have been filled with lightweight spackle, the plane completely sanded, all leading and trailing edges have also been symmetrically shaped to reduce drag as much as possible. Paint is diluted acrylic craft paint from dollar store, Walmart, any craft store brushed on by hand.
- AUW with battery is 680 gr/24 oz which with the power this motor produces should make for a very speedy jet! I ended up 5.7 gr/0.2 oz lighter with this plane than with my first NTM Mig-35, I attribute the reduction in weight to using the Fli-Value XPS foam for the fuselage and canopy as it is a bit lighter than Depron.
- This is a picture of the battery bay with components arranged to allow it to balance on the CG. Fine tuning of final battery/ESC location will happen at the field after I get a chance to fly it. Everything is nicely concentrated around the CG, the CG is indicated by the small holes that are in line with the front of the rudder servos.