LN-3 has common elevator and rudder controls, ailerons and slotted flaps.
The LN-3 has a 12-volt DC electrical system. An engine driven 120 W DC generator provides power and charges a 25 amps battery. Positioning lights are mounted to the wing tips and there are also strobe lights at the same locations.
The fuel tank contains 110 liters (29 US gallons), and are installed in the bottom of the hull.
Located aft of the main bulkhead and relatively close to the aircraft CG. Max. baggage weight is 25 kg (55 lbs.) but is limited to 20 kg (44 lbs.) with max. occupant weight in both seats.
Access is through a hatch in the main bulkhead. There is one 75 mm (3 inch) diameter tubular compartments stretching aft from the aft wall in the baggage compartment. This is for storing of fishing rods onboard. There is also a storage space in the nose, accessible from the outside, max 10 kg (22 lbs.)