Fuel is carried in two wing tanks. These tanks are of composite construction, and are located in the root area of the wings. The capacity of each tank is 9 gallons, and fuel is routed through a selector valve in the cockpit to the engine fuel pump.
Baggage is carried in two compartments. The first is a compartment aft of the rear seat. The second compartment is accessed via a hatch on the right side of the fuselage aft of the cockpit.
The 6ES structure is of tube and fabric construction. The cockpit cage is constructed of welded steel. The rest of the fuselage is constructed of aluminum tubing and fittings. The tail surfaces are also tube and fabric. The horizontal and vertical elements are connected with external support cables. The wing ribs are stamped aluminum. Each rib is riveted to both spars as well as to the fabric covering. The primary loads of the wing are carried by the main spar and struts attached to the fuselage. Fastening of the various structural members to each other is by means of blind "pop" rivets in the fuselage, wings and tail surfaces.
N633LS is powered with a six-cylinder Jabiru engine capable of developing 120 horsepower. This engine provides extra smooth, vibration free performance to an already sporty design. The Jabiru represents a departure from the RANS design. RANS normally uses a ROTAX engine. Considerable attention was given to the cooling design for the Jabiru installation. The plenum design we used is very similar to the tried and true approaches used on production aircraft such as Cessna, Mooney, or Piper and proved to work very well.
N633LS is instrumented for VFR day or night operation and is equipped with both navigation and landing lights. However, night VFR operations are specifically discouraged by this builder. The aircraft is certificated as AMATEUR BUILT EXPERIMENTAL. It also meets the criteria for FAA designation for light sport operations.