We caught up with Trey Murdaugh of TL Sport North America to get the details on the new TL Sparker. This sleek retractable-gear, two-seat Experimental can use any of several Rotax engines, from the 100-hp 912 ULS to the 160-hp turbocharged 916 iS. Speed is a claimed 170 knots (200 mph). Prices start at $327,000 with a non-turbo Rotax. The turbo option starts at $380K.
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Tom Wilson, an avowed hot rodder, details his foray into the world of custom exhausts and the performance gains found on his Lycoming IO-540.
Debunking Deburring
If you are building an aircraft kit that requires drilling holes into metal parts, there is no doubt that the subject of deburring will get mentioned.