I recently got the new UMX Habu 180 S with S.A.F.E. It was a little beyond my flying skills, and I crashed it so much that hot glue repairs made it heavy and less enjoyable to fly. Since a replacement airframe is upwards of $100, I thought, "can I make an airframe out of DTFB?" So I tried! My first attempt of a Mini Viggen (I apologize for lack of photos) Did not draw enough air for the EDF to produce thrust, and it crashed immediately. The airframe survived for the most part, but is now useless as it does not have enough power. The next idea from a fellow forum member was a Mig-15. I did some research, and thought on how I could make one. the hardest part was the small rounded fuselage. After experimenting with a heat gun, and removing paper, I got a small enough circle to close around the 28mm EDF
The fuselage tapers down to increase the power created by the fan.
I currently have 3 channel control, throttle, elevator, and rudder.
Sadly, the design is to small to keep the gyro (SAFE) board very well hidden, so it is just on the wing for now.
The battery sits on the opposite side of the fuselage, secured by Velcro. The wing is a typical flat-bottomed airfoil with under-cambered wingtips.
After Maiden cra-flight today, as I presumed, the aircraft is extremely tail heavy. I lengthened the fuselage to increase scale appearance and improve balance.
The wind picked up past 15-20 MPH so I was unable to take it out for another flight. After running the motor up on the work table, the plane would begin to skid forward, so I am pretty sure it has enough air currant. It has its surface area. Sadly, after gluing the tail in place, I realized the Mig-15 is an H-tail design. If this airframe never works out, I may retry with some different build techniques, or perhaps move onto a glider, or a fully under-cambered wing.
The fuselage tapers down to increase the power created by the fan.
I currently have 3 channel control, throttle, elevator, and rudder.
Sadly, the design is to small to keep the gyro (SAFE) board very well hidden, so it is just on the wing for now.
The battery sits on the opposite side of the fuselage, secured by Velcro. The wing is a typical flat-bottomed airfoil with under-cambered wingtips.
After Maiden cra-flight today, as I presumed, the aircraft is extremely tail heavy. I lengthened the fuselage to increase scale appearance and improve balance.
The wind picked up past 15-20 MPH so I was unable to take it out for another flight. After running the motor up on the work table, the plane would begin to skid forward, so I am pretty sure it has enough air currant. It has its surface area. Sadly, after gluing the tail in place, I realized the Mig-15 is an H-tail design. If this airframe never works out, I may retry with some different build techniques, or perhaps move onto a glider, or a fully under-cambered wing.
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