Raisbeck Wins STC for Caravan 208B Drag-reduction Mod

 - April 13, 2022, 9:54 AM
After receiving FAA STC for the Caravan 208B Epic drag reduction modification, Raisbeck Engineering is pursuing a similar approval for the Cessna Grand Caravan EX and has begun work towards ANAC approval as well. (Photo: Raisbeck Engineering)

Raisbeck Engineering obtained FAA supplemental type certification for a drag-reduction system for the Cessna Caravan 208B. Designed for factory pod-equipped aircraft, the Epic Caravan system will reduce drag, increase cruise speeds, and/or decrease fuel burn, Raisbeck Engineering said.

The Seattle, Washington aircraft modifications specialist noted the 208B experiences a decrease in speed and increase in fuel burn due to the cargo pod. The company developed the Epic Caravan mod to address the aerodynamic drag associated with the cargo pod, using a composite forward cargo pod fairing and metal dual aft body strakes.

According to Raisbeck Engineering, the Epic Caravan modification weighs only 38 pounds and enables the aircraft to fly at least five knots faster or go farther on the same fuel load. In addition, the dual aft body strakes improve lateral stability, it added.

“The Cessna Caravan is renowned for its rugged utility and adaptability to a wide variety of operations,” said Raisbeck Engineering president Hal Chrisman. “Epic Caravan will not only ease pilot workload but offer operators a more cost-effective, environmentally friendly way of flying.”

Raisbeck is pursuing a similar STC for the Cessna Grand Caravan EX and expects approval later this year. It also has begun work toward Brazil ANAC approval for the Epic Caravan mod and anticipates EASA and other foreign certifications to follow.