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A couple days ago I wrote about the Sling 4-4-40 Challenge. I believe this to be of interest for a couple reasons. One is the fast build at an airshow … much like the intense interest surrounding EAA’s One Week Wonder (video) building of a CH-750 at Oshkosh. The other is my promise to offer coverage of the “New GA” or “LSA 4” planes — which are four seaters built by LSA companies using the technologies and techniques those companies know so well. South Africa’s Airplane Factory (TAF) Sling 4-4-40 challenge — in which a Sling 4 was built in 4 days by 40 workers — marked yet another milestone for the Sling manufacturer. What normally takes a kit builder 1,000 hours to complete, took place at the 2014 Africa Aerospace event in just four days. Build team leader and company boss Mike Blyth reported it took their team 854 hours from bare kit to flight, although painting and perhaps some interior finish will take a bit more time, a situation similar to the One Week Wonder project.