If you need a horn to sound when the airspeed drops below a certain level or when the power is cut and the landing gear is still up and locked, an electronic circuitry solution is the lightest, most reliable and most cost-effective way to go.
The FAA’s concerns about the issuance of Special Airworthiness Certificates for some factory-built Light Sport Aircraft may result in changes to ELSA as well. By Editor-in-Chief Mary Bernard.
Want to be fresh at the end of a long flight? Experimental-only autopilots beat their certified counterparts. They're usually less expensive, more capable and far more user-serviceable (if you know what you're doing). By Stein Bruch.