uses a Carbon/Kevlar safety shell that meets the latest EASA Safety Standards. The 304 S is larger than the 304 C and while interchangeable wing extensions are available for 15-metre or 18-metre span, the most common configuration is the 18-metre version. The Shark is available in Self-Launch Versions (Shark MS) using the popular Solo 2625-01 powerplant, or as a sustainer using either a 400 N thrust Jet powerplant or with a Front-Electric-Sustainer (FES) solution. By early 2015 about 50 HPH Shark sailplanes had been produced with about 50% being Self-launchers, the remainder being sustainers of one type or another. Variants 304 Glasflügel produced. 304 B Jastreb produced. 304 CZ HpH produced variant certified in 1998 with a 15 meter span. 304 CZ-17 HpH produced variant certified in 1999 with a 15 meter span and interchangeable winglets and wing extensions to 17.43 meter span. 304 C Wasp HpH produced variant certified in 2001 with a 15 meter span. 304 Shark HpH produced variant first flown in 2006 and is an entirely new sailplane with interchangeable winglets for 15-meter or 18-meter span. So far only the 18m version has been produced, driven largely by customer demand. The new 18m wing offers substantially better performance than the original 304. The Shark is one of the first gliders certified to the latest version of CS22 and has a 9g cockpit utilizing Aramid fibers in the forward fuselage and carbon in the rear, except the top of the fin which is Glass so the Radio antenna can work. Virtually all Sharks have some form of motor system. See below. 304 Shark SJ HpH produced variant with 18-meter span and optional TBS 400N jet engine for self-retrieve. 304 Shark ES HpH produced variant with 18-meter span and optional front electric sustainer system for self-retrieve. 304 Shark MS HpH produced variant with 18-meter span and optional Solo 2625 01 motor for self-launch. 304 TS Twin Shark HpH produced variant with two seats and 20 meter span. The Twin-Shark first flew in July 2017 and initial flying impressions are very favorable indicating that it performs at least as well as the other two latest generation 20m flapped two seaters that are already on the market. Specifications (HpH 304C) Specifications (HpH 304S - 18m) See also References Johnson R H, A Flight Test Evaluation of the 304CZ Sailplane, Soaring, July 2000 Thomas F, Fundamentals of Sailplane Design, College Park