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Design Process: End Plates and Winglets
...of the tip causes the air to wrap up into a vortex that sheds aft of the tip of the wing. Last month we saw how tip planform and shaping...
Design Process: Wingtips
...drag. The goal is to make the tip vortex shed cleanly from the wing as far outboard as possible. Wingtip Geometry Both the planform of the tip and its cross...
Design Process: Aileron Types
The size and planform of the ailerons are set by the roll-control power needed to meet flying qualities and maneuvering requirements. Once the designer has defined these parameters, it’s time...
F1 Rocket Update
...preferred wing for low altitude, aerobatic and general performance use. The tapered wing is aimed at high altitude cross-country cruising and features both a tapered planform and some washout along...
Testing, Testing!
...cancel each other out). The spanwise load will be approximately proportional to the chord at that location along the span. For wings where the planform deviates from the elliptical ideal...
2021 Propeller Buyer’s Guide
...PowerSweep blade planform is incorporated into the composite propellers. Two- and three-blade units are available for the Lycoming O-320 and O-360 installations in Van’s RV airplanes, and large-diameter propellers are...
Design Process: Airfoils
Once the size and planform of the wing have been determined, it’s time to choose (or design) the airfoil. The airfoil must provide the right aerodynamic characteristics to give the...
Design Process: Stall and Roll Damping
...its airfoil stalls. This affects how sudden the onset of a stall is, but unless the wing planform has a significant amount of sweepback, the wing’s contribution to pitching moment...
Design Process: Twist Effects
For the last few months, we have been looking at how the planform affects both the distribution of lift and the distribution of lift coefficient (Cl) along the span of...
Design Process: Distribution of Lift Coefficient
...the choice of wing planform, but we are not done yet. Up until now we have been discussing characteristics that are purely due to the planform shape of the wing....
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Ski Patrol
RANS S-7S builder Tom Simko details how his desire to fly year-round in snow country was satisfied (and then some) by installing Datum wheel skis.
Light Stuff
LSAs are fun, and being able to make that water landing-and takeoff-in one is even more enjoyable. Join Dave Martin as he samples the Progressive Aerodyne SeaRey LSX.
Design Process: Span and Aspect Ratio
At this point in the design process we have determined the wing area. The...