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FAA Grants Raisbeck Engineering Supplemental Type Certificate Approval for Five Blade Swept Propellers for Heavyweight King Air 300 Series Aircraft

Seattle, WA – Raisbeck Engineering, an Acorn Growth Company, and a leading provider of innovative aircraft modifications, has announced the issuance of Supplemental Type Certificate (STC) Number SA02559SE by the Federal Aviation Administration (FAA). This new certification approves the installation of Raisbeck/Hartzell five blade swept turbofan propellers on heavyweight (16,500 lb) King Air 300, 350, 360 series aircraft.

The Raisbeck/Hartzell five blade swept turbofan propellers offer a significant enhancement to aircraft performance, including increased thrust and cruise speeds, decreased noise levels, and improved landing deceleration and accelerate stop. With carbon fiber composite construction and nickel cobalt leading edges, these Raisbeck/Hartzell propellers provide unlimited blade life while weighing 54 lbs less than the OEM propeller.

“We are thrilled to have received STC approval from the FAA for our revolutionary propeller design,” said Hal Chrisman, President of Raisbeck Engineering. “Our team has worked tirelessly to extend the benefits offered by our five-blade composite propellers to operators in diverse roles requiring heavyweight aircraft such as Air Ambulance and ISR. These props are quieter and lighter, improve performance, last forever, and they look awesome on the ramp! I am confident it will be a winner for both our customers and Raisbeck.” 

Raisbeck Engineering has been producing durable, five-blade composite props for 15,000 lb King Air 300 series aircraft since 2017, and this new STC Number SA02559SE is applicable to the Beechcraft King Air B300, B300C (MC-12W), and B300C models. The five-blade composite props are now available for purchase and installation through authorized dealerships worldwide.

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Composite 5-Blade Propellers
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Lynn Thomas portrait

REMEMBERING LYNN THOMAS

We are all saddened by the passing of our leader and friend, Lynn Thomas, who recently lost his battle with cancer.

A life-long aviation enthusiast, Lynn pursued his passion for aviation both professionally and personally, making his first solo flight at the age of 16. Over the years, he continued to fly as often as possible, both for business and pleasure

Lynn joined Raisbeck Engineering in 2017, bringing his unique talent to the company where his drive and leadership contributed greatly to Raisbeck’s continued success. His experience and achievements in the general aviation industry included sales, business management and marketing with both aviation manufacturers and dealers. Lynn started his career working with major investment firms, including Everen Securities and Paine Weber.

Lynn took an active interest in all facets of the companies he represented. He was often spotted on the shop floor at Quest Aircraft or roaming the halls and main lobby at Banyan. Here at Raisbeck, Lynn always took the opportunity to spend time with the Raisbeck team to support their efforts.

In addition to Lynn’s passion for aviation, he was an avid outdoorsman.  Whether fly fishing or paddling his hand-built canoe, he loved taking in the beauty found in nature.

He leaves us with a sense of great loss.  Lynn has left an indelible mark on all of our lives and will be greatly missed. Our thoughts and prayers are with his family.