ALL SLING 4 aircraft have a three-blade, 73-inch- diameter propeller using an Airmaster electric constant-speed hub. Gull-wing doors provide not only easy access but increase ramp appeal (left). Customers have their choice of MGL or Garmin avionics. Pictured below is a South African-made MGO glass cockpit system featuring two 10.4-inch displays. The displays are customizable and include a Sling 4 checklist. Just above the fuel selector is the Stratos ballistic airframe recovery parachute handle. It is an option but most customers buy it. The cables for the parachute are located ahead of and behind the gull-wing doors. www.aopa.org/pilot AOPA PILOT | 71http://www.aopa.org/pilot