The Dingo - Simply Efficient

The Dingo is a very capable, surprisingly efficient single engine tractor aircraft.
 
Designed to fit a 21700 4s Li-Ion battery pack, with generous room for a flight controller with an internal GPS, and pass throughs to accommodate on-wing electronics - this plane is exceptional for your experiments, or small payloads, or just as a fun line of sight plane.  Designed for (4mm thick) 32 ECT single wall cardboard - it's rugged and capable of withstanding remarkable abuse.
 
The Dingo was not designed as a trainer - it's a quick to build aircraft that can provide good endurance in long cruise or loitering missions.  It's handling is straight forward with good trim capability and predictable flat wing aerodynamic responses, yet for a beginner pilot - it may be faster than comfortable with torque and gyroscopic effects that are pronounced at low airspeed and high power.  Given experience - the aircraft flies predictably, and can be spot landed with accuracy.
 
In flight - roll response is precise with roll rates proportionate to airspeed and responsive induced flow at high power settings.  Pitch control is very crisp with small angle of attack changes resulting in immediate commanded response in AOA driven lift.  The elevator is almost entirely within the induced flow of the propeller, and the ailerons inner span are as well, so there is control response at low speed / high power settings - but due to torque and P-factor, controllability issues can manifest if power is not applied smoothly in recovery.  Power off stalls are predictable with a clean break to a nose down attitude with demonstrated CG.  Recovery is simple - but power must be applied smoothly and at a measured pace.  The aircraft has more than enough power to climb vertically with precise control at tested weights.  It's a fun flying airplane.
 
The aircraft as shown requires three servos - two aileron and one elevator - so it's possible to configure the ailerons as flaperons.  There is no rudder or control surface to counteract yaw - so be cautious in low speed / high power environments where torque, gyroscopic effects and P-Factor can impact controllability.
 
Center of Gravity markings indicated (marked with cutouts under the wings just aft of the leading edge adjacent to the fuselage) as flown conditions and are not limiting.  Use a small amount of nose up trim (about 5mm at the aft trailing edge of the elevator), for takeoff when operating on the CG markings. Equipment installation will determine CG - so build your fuselage and mount your motor and then place the remaining avionics to achieve your desired CG.  The airframe is robust - but load limits will depend on completed weight.  This is not designed to be an hardcore acrobatic plane - but it will fly basic acrobatics if the load factor is kept low.
 
The Motor mount is designed for a 2205-2300kv motor.  Anything with a 16X19 M3 mounting pattern will work.  There are two versions of the motor mount - one to secure an ESC on a printed tray, and another without the tray.  The Ram Air Scoop should provide cooling airflow to the ESC in even the warmest of conditions during cruise.  Additional cooling inflow is augmented by the battery access vent latch.
 
Endurance depends on power settings and other electrical draws - but it can be made to fly for well over an hour on a 4S 5000mah Li-Ion pack - perfect for an airborne mesh node, repeater or other missions. 
 
Included drawing files for cardboard components are in provided in the following formats:
DXF (Drawing Exchange Format)
AI (Adobe Illustrator)
CDR (CorelDRAW 2025)
PDF
 
I use the DXF files to run my laser.  Black lines indicate cut lines, and red lines are fold lines.  You'll need to experiment with your laser or cutting tool to determine your settings to cut where required and mark fold lines without cutting all the way through the cardboard.
 
Included 3d Printed files are provided as STL files.  I print my 3d printed parts exclusively in white PLA (to reflect as much heat from the sun as possible) - and have had no issues with my aircraft in the heat of Arizona summers.
 
Cardboard tools (5mm fold tool and 8mm crush wheel) are included.  They're not required - but they're tools that I designed and use for all my builds.  The fold tools assemble and I attach them to a piece of (3/4" Schedule 40) PVC pipe for a handle.  If you do not have PVC pipe available - there is also a file to print an handle to be glued in place.
 
33 Files delivered in a zip file via immediate download link upon purchase.
 
Current Build file is V6.