Ask the DAR
Does an A&P have to sign off on an ELT inspection? And can a Sport Pilot fly a Cessna 172?
Electronic Ignitions
Electronic ignitions can offer benefits over the standard magnetos, including lower maintenance and better fuel economy.
Firewall Forward: Tools of the Trade
Here are the tools you'll need during your engine installation, plus suggestions for keeping them organized.
Engine Update: New Life for Old Radials
Barrett Precision Engines has taken the nine-cylinder Vedeneyev M14P radial engine to a whole other level with a fuel-injection upgrade and new ignition system. By Marc Cook.
Build It Better: Show Me the Data!
Don’t believe everything you hear when making an important building or maintenance decision—do your homework.
Switch Blade
Weighing just 11 pounds for a hub and three blades, the new carbon-fiber prop from Whirl Wind Propellers improves the performance in both climb and cruise on a RANS S-7.
Firewall Forward: Choosing a Prop for Your Project
Wood or composite? Constant speed or fixed pitch? The choice of propeller should be made just as carefully as the choice of an engine. Dave Prizio outlines some of the important factors to consider.
Unusual Attitude
If you want to install an alternative engine in your aircraft, make sure you've thought through the issues of weight, thrust line, cooling and cowling.
Build It Better: Where’s Your Margin?
How can you give yourself that margin of safety that you hope you'll never need?
In Case You Missed It
Vroom!
Months of repair work netted Bill Repucci a new, more powerful engine for his RV-9. The increase in horsepower brings with it a shift in CG and handling characteristics.
Special Light Sport Airplane Accidents
Some surprising results when compared to traditional Cessnas.
Light Stuff
Roy Beisswenger takes a look at the maintenance requirements for the lighter side of aviation including ultralights and Light Sport Aircraft.