Page 12 - Mar17ABS

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He also saw an improvement in stability and ride. “Once at altitude, I switched off the autopilot and depressed a rudder pedal to see how quickly it would return to stable flight. It cycled back and forth perhaps four times before returning to straight and level. It’s a little heavier in roll, but felt solid and comfortable to hand-f ly,” he added. “It makes a difference for the passengers in back, especially those who are terrified of turbulence. It dampens the turbulence and makes the ride smoother for them.”
Bern Kotelko, a CJ1+ owner-pilot based near Edmonton, Alberta, first test-flew the Tamarack Winglets in while attending the Citation Jet Pilots Association annual convention and was so blown away by performance improvements, he immediately scheduled his aircraft for installation. He has been flying the system on his own aircraft for a year now, and said the decision was “a no brainer.”
On the CJ1+, Kotelko said he now can climb directly to altitude with no step- climbs. Within 5 minutes of leveling off, the AOA decreases from 0.4 to 0.2. “Before the winglets was added, it would take 30 to 45 minutes for the aircraft to get on plane and pick up speed.”
With his typical mission being between Edmonton and southern California, he often lands with no less than IFR reserves (650 pounds), even
with headwinds. He also said the lower stall speeds adds a safety cushion on days with gusty winds or wind shear on approach and landing.
“It’s the most cost-effective improvement you can make to an already great plane,” he said. “I have CJ2 range performance but the cost of the winglets is 20 percent of the cost to upgrade to the CJ2.”
What’s Next for Tamarack
With the CJ3 system expected to be certified in the fourth quarter of 2017, the company is already working on the 525A CJ2 certification program. Guida wouldn’t reveal which business jet airframes will follow the 525 series, but said the small company had some big things in store. Last fall, it was reported in Jane’s that Tamarack was interested in working with Lockheed Martin to equip the U.S. Air Force’s fleet of C-130 Hercules transports with its active winglet technology.
“My focus is to grow the company
and add three more product lines. We
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have some military programs underway
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and are talking to the airlines,” he
said. “We have a lot of good stuff
going on and expect to be going like
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The Tamarack Active Camber Surface, or TACS, is a device extension that is installed on the outboard trailing edge or the wing. When wing loading is increased, such as in turbulence or maneuvers, the TACS automatically dumps the load, which relieves structural stress to the wing.
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