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MT's new seven-blade composite propeller received EASA STC approval earlier this month for twin-turboprop Shorts SC-7.October 21, 2021, 1:28 PMMT-Propeller has received an STC from EASA for the installation of its new Silent 7 MTV-37 seven-blade propeller on the twin-turboprop Shorts SC-7, the Germany-based company announced this week. The STC follows FAA type certification of the propeller in late September. The SC-7 is also the second aircraft model to receive EASA and FAA STC approval for MT’s new prop, with the first going earlier this year to the Pilatus PC-12 turboprop single powered by the Pratt & Whitney Canada PT6A-67B, PT6A-67P, or PT6E-67XP engines. According to MT, the composite with nickel leading-edge propeller provides nearly vibration-free propeller operation on the SC-7 and Viking Air Series 3 equipped with Honeywell TPE331-2-201A engines and allows for a 5 percent shorter takeoff distance and 10 percent enhanced climb performance. On the PC-12, installation of the MTV-37 requires no engine modifications and offers improved climb performance and reduction of cabin noise by between 6 and 7 decibels. Business Aviation

1 month, 2 weeks ago

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