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Slap an Engine On It and Go Fly!
...swept-back planform. The fuselage is welded 4130 steel with spruce spars and plywood ribs, all covered with fabric of course. The wing is a Clark YH airfoil design (the H...
SX Appeal
...offset 2° to the right and 1.5° down to account for P-factor. The wing is small, no two ways about it. Reminiscent of the Metroliner, the high-aspect-ratio planform is best...
Hiperbipe
...that it is a straightforward, easy-to-fly airframe. The flat sides, while making a dramatic and unusual planform, separate the air into two planes rather than introducing the complex airflow of...
Design Process: Vertical Tail Spin Considerations
...2: Different combinations of tail position and fin planform will affect how much of the vertical tail remains effective in a spin. Figure 2 shows how some combinations of tail...
September 2022
On the cover: Tricycle gear and taildragger versions of Sling’s new High Wing fly in formation near Johannesburg, South Africa. Photographed by Bruce Perkins. Table of contents Sling High Wing…...
Design Process: Vertical Tail Planform
...The wetted area and airfoil of the tail affect parasite drag, but the planform has little effect. This gives the designer a bit more freedom to choose the planform of...
Stick to the Plans
...seals. Stahr Painter With the VAF scheme set before he finished construction, Kirk had time to puzzle out the airplane’s planform paint. The emblem’s lightning-bolt transition from red reality on...
Verhees D2
...using a delta planform. That steered Verhees to something different—not new by any means, but still unusual, especially in a light airplane with relatively low airspeeds. Delta-wing planforms have been...
Blast From the Past
...The only known surviving Dreidecker prop was scanned to replicate the original planform and airfoil, then this duplicate prop was carved for Chris’ Dr.I. The Prop The propeller is just...
Design Process: Tail Surfaces
...move with loading condition and fuel state, the more stabilization the tail will need to provide. The stabilizing effectiveness of the tail is affected by its area and planform as...
In Case You Missed It
Hinges For Your Homebuilt
Piano hinges find themselves in all kinds of places as we examine the structure...
Wind Tunnel
Columnist Barnaby Wainfan continues his flight-testing discussion by taking up the topic of longitudinal stability. By identifying the origin of the problem, whether it be a control-system issue, a too-small static margin, or a combination of the two, the flight tests he recommends will help to isolate the issue.
Is LiFePO4 in Your Future?
As technology improves and gets cheaper, the answer is probably yes. Gordon Alling.