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2. Van's Aircraft RV-7 - Wikipedia

   en.wikipedia.org/wiki/Van's_Aircraft_RV-7

   Van's aircraft designer Richard VanGrunsven designed the RV-7 to replace the RV-6, which was a two-seat side-by-side development of the RV-4. In turn, this was a two-seat tandem version of the single seat RV-3. [7] The RV-7 incorporated many changes resulting from the lessons learned in producing over 2,000 RV-6 kits.

3. Blown flap - Wikipedia

   en.wikipedia.org/wiki/Blown_flap

   Blown flaps, blown wing or jet flaps are powered aerodynamic high-lift devices used on the wings of certain aircraft to improve their low-speed flight characteristics. They use air blown through nozzles to shape the airflow over the rear edge of the wing, directing the flow downward to increase the lift coefficient .

4. Semi-trailer aerodynamic device - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer_aerodynamic...

   Semi-trailer aerodynamic devices are devices affixed to semi-trailers, for the purpose of reducing aerodynamic drag caused by air turbulence.The two major types of device in use are trailer skirts (or side skirts), affixed to the underside of trailers, and trailer tails (or boat tails, or rear fairings), affixed to the rear.

5. Aircraft fairing - Wikipedia

   en.wikipedia.org/wiki/Aircraft_fairing

   The wing root fairing of an American Aviation AA-1 Yankee. An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag. [1]These structures are covers for gaps and spaces between parts of an aircraft to reduce form drag and interference drag, and to improve appearance.

6. Uncontrolled decompression - Wikipedia

   en.wikipedia.org/wiki/Uncontrolled_decompression

   In practice, that new FAR amendment imposes an operational ceiling of 40,000 feet on the majority of newly designed commercial aircraft. [ 27 ] [ 28 ] [ Note 1 ] In 2004, Airbus successfully petitioned the FAA to allow cabin pressure of the A380 to reach 43,000 feet (13,000 m) in the event of a decompression incident and to exceed 40,000 feet ...

7. Mudflap - Wikipedia

   en.wikipedia.org/wiki/Mudflap

   Mudflaps can be aerodynamically engineered, utilizing shaping, louvers or vents to improve airflow and to lower drag. [1] While some flaps are plain, in the colour of rubber, many contain company logos, other art or sometimes advertisements. One possible feature is the mudflap girl, a woman's silhouette. [2]