Flight Reports Soaring With Sonex Designer John Monnett returns to the motorglider scene with the two-place Xenos; by Murry Rozansky. Pedal to the Metal The V-Tail Waiex combines unusual style with refreshing speed; by Dan Johnson. Nexus Mustang Another classic design thoroughly updated; by Ken Armstrong. Builder Spotlight Completions Builders share their successes with our readers. Shop Talk Monster in a Box You can build a kit engine; by Rick Lindstrom. 2005 Engine Directory From alternative auto conversions to the tried and true, we present engine options for homebuilders; compiled by Julia Downie. Weighing In on the Balancing Act Walking the tightrope in search of efficiency; by Rick Lindstrom. Subaru vs. Lycoming The contest between the two engines takes to the sky; by Ross Farnham. Build a Powered Tow Hook for $10 Scrounging parts and rummaging through the scrap pile isn't just fun--it can pay off; by Jim Fleischman. Aero 'Lectronics Running it down the centerline; by Jim Weir. Designer's Notebook Wind Tunnel The curious effect of wakes and drag; by Barnaby Wainfan. Exploring Around the Patch Be thankful for the choices; by Marc Cook. What's New Music from the heavens--almost; edited by Brian E. Clark. Light Stuff Flying the ATOS VX Wing; by Dan Johnson. Kit Bits Letters List of Advertisers Builders' Marketplace The Classified Builder Kit Stuff Drawing on experience; by cartoonist Robrucha.