Magazine

Paying attention to the working environment and maintaining machining tools in tip-top shape can yield a more polished finished product, while also making the fabrication process easier.

Exhaust systems do more than just get air into and out of aircraft engines. Exhaust system design, in terms of exhaust pipe length, diameter and tuning, affect the efficiency and performance of the engine, for better or worse.

In Part 3 of this series about building an aircraft strobe, the author beefs up the project using off-the-shelf parts to provide a brighter, more frequent flash without running down the planes electrical system.

The author discusses the theory and effect of constant-speed propellers on piston-engine airplane performance, and compares fixed-pitch versus constant-speed props, effect on thrust HP and propulsion, the comprises involved in choosing a prop, how props perform in various conditions and phases of flight, how variable-pitch props work, and why a constant-speed prop is the best choice for high-performance aircraft.

Lancair Aircraft is revolutionizing its already successful turboprop line of kits with the new Evolution, a 750-horsepower, Pratt & Whitney-PT6A-powered, carbon-fiber composite, 380-mph four-seater to be available later this year.

The easy-to-build, high-wing Wag-Aero Super Sport CUBy combines the Cubs classic looks with modern technology and materials, increasing both maximum weight and payload. Using engines of up to 150 horsepower, the Cub offers great short-field performance, high roll rates and easy glideslope control-a great option for those who cant afford vintage prices.

The Sky Arrow 600: a different kind of LSA; by Dave Martin.

With 4000 kits sold, a million hours flown and a loyal customer base, you just knew that the Kitfox would somehow find itself back in production. It's been out after the previous company, SkyStar Aircraft, went bankrupt in 2005, leaving builders in the lurch.

Now the exceedingly popular and extraordinarily useful 11-part Build YourSkills: Metal Series is available as a single PDF. This must-have additionto your library was written by RV-7 builder Dan Checkoway and carefullyillustrated for first-time metal-workers and old hands alike. Mosteverything you need to now, from material handling and cutting to deburring,drilling and riveting is in this series.

Mating a prop to an engine requires more than a big wrench and some safety wire. Follow along on a real propeller vibration test.