TM 5-5420-278-100019 000019 00-6FREE LAUNCHNOTEFree launch is the fastest method of launch and,therefore, the most preferred method.The water depth for free launch is based upon a 10%slope with the transporter backed into the water.Minimum depth of water required:Bank height: 0 ft (0 m) and 10% slopeRamp bay: 9 ft (2.7 m)Interior bay: 6 ft (1.8 m)Bank height: 5 ft (1.5 m) and 20% slopeRamp bay: 12 ft (3.7 m)Interior bay: 7 ft 2 in. (2.2 m)Bank height restrictions: 0–5 ft (0–1.5 m)Bank slope restrictions: 0–20%CONTROLLED LAUNCHMinimum depth of water required:Ramp bay: 6 ft (1.8 m)Interior bay: 3 ft 7 in. (1.1 m)Bank height restrictions: 0 ft (0 m)Bank slope restrictions: 0–20%HIGH BANK LAUNCHMinimum depth of water required:Ramp bay: 2 ft 8 in. (0.8 m)Interior bay: 1 ft 10 in. (0.5 m)Bank height restrictions: 5–28 ft (1.5–8.5 m)Bank slope restrictions: On slopes greater than 5%, must anchor CBT IAWTM 5-5420-234-14&P.HELICOPTER LAUNCHMinimum depth of water required: Same as High Bank Launchrestrictions.Bank height restrictions: N/ABank slope restrictions: N/ASITE REQUIREMENTS AND LAYOUTS (Contd)Table 1. Launch Restrictions.
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