Here are some of the questions we’re hearing:
Q1: What kind of company is Tamarack Aerospace?
Q2: How many customers to you have?
Q3: Where is the Tamarack Aerospace Group headquarters?
Q4: What do traditional, - passive - winglets do?
Q5: What is the big difference between Active Winglets and passive winglets?
Q6: What kind of plane is best suited for Active Winglets?
SUSTAINABILITY AND ENVIRONMENTAL BENEFITS OF TAMARACK TECHNOLOGY
Q7: What role does Tamarack see itself playing in making the aviation industry greener?
Q8: How can Tamarack help aircraft operators and owners with sustainability?
Q9: Do winglets save fuel? How much?
SAFETY AND STABILITY
Q10: What was the certification process for your Active Winglets with the FAA and EASA?
Q11: Do Active Winglets help a plane’s performance?
Q12: Is it true Active Winglets only enhance performance for certain portions of a flight?
Q13: Do Active Winglets smooth the ride?
Q14: Are Active Winglets safe?
Q15: Have you made any additional safety improvements since certifying the Active Winglet system?
Q16: How does the pilot know the system is working properly?
Q17: What if the system fails?
Q18: What happens if the system loses power?
Q19: How reliable are Tamarack’s Active Winglets?
Q20: Is Tamarack still under Airworthiness Directives (ADs) from the FAA and EASA?
Q21: How were the ADs resolved?
Q22: Is Tamarack open for business? What’s going on with the company?
Q23: Tamarack received a big infusion of capital in August 2019. What were the funds used for?
Q24: When will Tamarack emerge from Chapter 11 bankruptcy?
Q25: Why did Tamarack file for bankruptcy?
Q26: Have the ADs and voluntary bankruptcy affected the company’s ability to conduct business?
Q27: Will Tamarack continue to maintain and upgrade its technology in the future?
Q28: What is the status of the NTSB investigation of the fatal Indiana crash in November 2018?
Q29: What happened with the 525B Active Winglets for CJ3s and CJ3+s?
MORE ABOUT THE ACTIVE WINGLET TECHNOLOGY
Q30: What is Active Winglet technology?
Q31: What is the value proposition of Active Winglets?
Q32: What are the primary advantages of Active Winglet?
Q33: Why do I see so many winglets on so many airliners?
Q34: Do Active Winglets add value to aircraft or make it harder to sell?
Q35: Do Tamarack’s Active Winglets tie into other aircraft flight control systems?
Q36: Do the pilots have to do anything to make the system work?
Q37: Do the active elements move in unison?
Q38: Can you see the TACS move while you are flying?
Q39: What if one TACS goes up while the other is down?
What kind of company is Tamarack Aerospace?
Tamarack Aerospace is a technology and aviation sustainability company with more than 30 patents focused on aviation efficiency and performance. We are a tight-knit team of aviation enthusiasts with a passion for technology and efficiency. Our first ground-breaking technology to market was Tamarack’s Active Winglet modification. This invention marks the first major innovation in winglet technology in more than 100 years and was the first instance of load alleviation for a general aviation aircraft in history. These modifications greatly improve the aircraft efficiency because our Active Winglets don’t have the aerodynamic compromises of the other winglets found in the market.
How many customers to you have?
There are more than 100 jets flying today with Tamarack Active Winglets. We celebrated our 100th installation in February 2020. Our Active Winglets are certified for eight variants of the Cessna CitationJet line: CJ, CJ1, CJ1+, M2, CJ2, CJ2+, CJ3 and CJ3+ . We are looking forward to adapting this revolutionary technology for other business and commercial jet designs and for civilian and military applications.
Where is the Tamarack Aerospace Group headquarters?
Tamarack Aerospace headquarters is in Sandpoint, Idaho. We are pleased to have a growing worldwide network of Tamarack Partners who service and install Active Winglet in their qualified maintenance, repair and overhaul (MRO) facilities. Currently we have more than 20 MROs in nine countries.
What do traditional, - passive - winglets do?
All winglets reduce aircraft drag, improve climb and save fuel to varying degrees. Winglet efficiency is all about the aspect ratio of the wing. Longer, thinner wings are more efficient for lift and have lower drag. Winglets have the same effect of increasing wingspan. Winglets reduce drag from wingtip vortices, and improving the lift distribution over the wing. The particular benefits depend on the type of aircraft, the flight mission, and whether the winglets are traditional, passive winglets or if they have the latest technology, which is Tamarack Active Winglets. A typical commercial airliner with older, passive winglets will achieve only about 4% fuel savings as compared to the same plane without winglets. This is because those older designs had to compromise aerodynamically, but those are the old days. With Tamarack Active Winglets larger airframes like commercial airliners can see up to 15% fuel savings and smaller GA aircraft can realize up to 33% fuel savings.
What is the big difference between Active Winglets and passive winglets?
Well-designed winglets result in less induced drag, and historically provide about 4% fuel savings. However, all passive winglets require more support structure (additional wing structural weight) than do wings without winglets because the passive winglets introduce higher loading in the structure – and more so as they become more aerodynamically effective. With passive winglets, there is a necessary compromise between added aerodynamic efficiency from the winglets and added structural weight to support them. Tamarack’s patented Active Winglet modification features an innovative load-alleviating technology that automatically counteracts the additional wing load caused by winglets when conditions require it without the structural load required to support passive winglets. So there is no compromise between weight and efficiency. GA planes with Active Winglets use up to 33% less fuel and larger airframes can save up to 15%. This is dramatic when compared to a typical 4% fuel savings with passive winglets.
What kind of plane is best suited for Active Winglets?
Almost any aircraft with fixed wings including business, commercial, and military aircraft. Tamarack’s Active Winglets are available for business jets at this time and the technology can be applied to both older aircraft and new designs to provide increased aerodynamic efficiency, safety and sustainability benefits. Tamarack Active Winglets commercial airline customers could see a fuel savings of up to 15% fuel savings because there is no compromise between added structural weight and aerodynamic efficiency with the Active Winglets. This compared to the typical 4% fuel savings offered by older passive winglets. Other planes, such as smaller business jets, can see fuel savings of up to 33% on average. The manned and unmanned military applications abound because winglets are a significant benefit for high and hot takeoff, climb, and landing performance – not to mention unprecedented increases in range and endurance. Active winglets go a step further offering increased payloads and flight stabilization.
SUSTAINABILITY AND ENVIRONMENTAL BENEFITS OF TAMARACK TECHNOLOGY
What role does Tamarack see itself playing in making the aviation industry greener?
Tamarack’s Active Winglet system is a game-changing technology. Active Winglets are the best and fastest way for aviators to see an immediate and significant reduction in CO2 emissions and fuel consumption. They are the single largest environmental upgrade available today for any business jet. Today all the word’s airlines are announcing plans to go carbon neutral and will spend billions of dollars addressing the issue. They will buy carbon offsets, invest in new fuel sources, more efficient engines, lighter airframes, and carbon-capture technologies. While we support investments in all these technologies, they will take time to perfect, certify, commercialize and scale across the industry. Active Winglets can improve fuel efficiency by up to 33% and deliver a corresponding reduction in CO2 emissions while also increasing safety. Tamarack’s Active Winglet technology is available today, can be used on older and current airliners and incorporated in future aircraft designs.
How can Tamarack help aircraft operators and owners with sustainability?
With fuel savings of up to 33% for GA aircraft and up to 15% for larger airframes, Active Winglets are the largest single aircraft environmental upgrade available today. Active Winglets offer aircraft owners and operators real changes in their carbon footprint immediately. Better performance and lower emissions aren’t only for newer, lighter planes.
Do winglets save fuel? How much?
Yes, winglets save fuel. The exact amount saved depends on the type of aircraft, its mission and whether the winglets are passive or active. Active Winglets provide fuel savings of up to 33% for GA aircraft and up to 15% on a commercial airliner compared to a savings of only about 4% savings with passive winglets.
SAFETY AND STABILITY
What was the certification process for your Active Winglets with the FAA and EASA?
Because the Tamarack Active Winglets technology the first instance of load alleviation for general aviation aircraft ever, the Federal Aviation Administration (FAA) and the European Aviation Safety Agency (EASA) classified the technology as “novel.” Novel certifications call for added requirements above and beyond a typical certification effort, including adapting existing Code for Federal Regulations (CFR) transport guidelines related to Interaction of Systems and Structure for general aviation and 14 special conditions. It took two and a half years for the EASA to certify the Active Winglets on the Cessna CJ which included many hours of flight testing, including simulated failure conditions, to ensure safety performance. FAA conducted a follow-on certification which took an additional year.
Do Active Winglets help a plane’s performance?
Yes. Active winglets offer significant benefits to safety and fuel efficiency through improved climb performance, ride smoothing, higher initial cruising altitude, better high/hot performance, an increased payload and more. And because Active Winglets don’t require the added weight and support structures that passive winglets do, there is no aerodynamic compromise.
Is it true Active Winglets only enhance performance for certain portions of a flight?
Active Winglets provide the most benefit when the coefficient of lift is high, i.e., take offs and climbs, at efficient altitudes. However, they enhance the aerodynamic benefits and provide other benefits such as ride smoothing and increased payload capability throughout the entire flight.
Do Active Winglets smooth the ride?
Yes. The load alleviating aspect of the Active Winglet system, when ‘dumping’ wing loads, smooths out the bumps associated with turbulence, providing a noticeably smoother ride. The Active Winglets act as aerodynamic shock absorbers. It works like this: when the wing bounces up in turbulence, the Active Winglet technology pushes the wing down. When the wing is moving down, the system pushes the wing up. Turbulence isn’t eliminated, but greatly moderated.
Are Active Winglets safe?
Yes, Active Winglets are very safe. As an innovative technology, the Active Winglet modification was rigorously tested during the certification process, first by the European Union Aviation Safety Agency (EASA) and then by the Federal Aviation Administration (FAA) including many hours of flight testing, including simulated failure conditions, to ensure safety performance. Safety is what certification is all about and Tamarack’s Active Winglets passed all the tests of both agencies. During certification all critical failure conditions were flight tested and it was demonstrated that in the extremely unlikely case of an Active Winglet failure, a pilot of average skill can easily control of the aircraft for a safe outcome. To see a video showing how a critical system failure is simulated and managed, click here.
Have you made any additional safety improvements since certifying the Active Winglet system?
Yes. We are always looking for ways to improve both the performance and safety of our technology. In early 2019, we recommended the addition of centering strips for all aircraft with Active Winglets. These centering strips aerodynamically force the TACS (the active element of the system) back to their faired position in the unlikely event of a system failure. This upgrade has been installed on all aircraft with Active Winglets and is standard for all new installations.
How does the pilot know the system is working properly?
If the system senses a fault, a red annunciator informs the pilot of the failure. If there is no annunciator light, the system is working properly. In the unlikely case of a failure, the pilot can simply reset the system by pushing the annunciator button three times in a row.
What if the system fails?
If the system fails in flight, and if going through the system reset procedure does not alleviate the issue, the pilot need only slow the aircraft to a defined airspeed. The pilot may continue the flight. This is a conventional approach, similar to an inadvertent flap deployment.
What happens if the system loses power?
A red warning light on the control panel would turn on. This annunciator is powered separately and redundantly, so it would turn on in the event of an Active Winglet power loss. The pilot would then simply slow down and go through the reset procedure.
How reliable are Tamarack’s Active Winglets?
The most critical failure of any system like the Active Winglets would be a failure without illumination of the warning light. The chances of this type of failure is calculated at less than 1 failure for every 1 billion flight hours.
Is Tamarack still under Airworthiness Directives (ADs) from the FAA and EASA?
No, the entire fleet of active winglets is operating normally. The ADs that were issued in April 2019 from the EASA, and May 2019 from the FAA, have both been resolved in July 2019. It was discovered that the pilot report that triggered the ADs was false.
How were the ADs resolved?
The FAA and EASA accepted Service Bulletin 1480 as the means to lift the flight restrictions. The service bulletin simply called for incorporating all existing product improvements, which have now been installed on all planes and are included in any new installations. These improvements were available to the fleet at no charge before the Airworthiness Directives (ADs), which were triggered by a false pilot report, came into effect. Despite our recommendations, these updates had not been widely adopted.
Is Tamarack open for business? What’s going on with the company?
Yes. Tamarack is open for business and we’re extremely optimistic about the future! Even during the period when we were under the AD restrictions, which were triggered by a false pilot report, Tamarack made several Active Winglet sales. Since then, Active Winglet installations have resumed, Tamarack has hired back employees who were laid-off during the grounding, we are recruiting new employees and adding to our worldwide network of partner installers and service centers. The company is also currently looking at new winglet certification projects.
Tamarack received a big infusion of capital in August 2019. What were the funds used for?
Tamarack was able to raise $1.95 million from a group of vendors, current customers, and some existing shareholders who see the immense value of Tamarack and its intellectual property. The money was initially used to very quickly pay off all prior secured debt and the remaining funds now serve as a line of credit if needed for sustaining operations.
When will Tamarack emerge from Chapter 11 bankruptcy?
Tamarack has nearly completed repaying all creditors in full while keeping all shareholders whole. This outcome is extremely uncommon, and shows Tamarack’s financial health, viability, and wide support for our products. A few final administrative steps remain, and Tamarack is expects to emerge from Chapter 11 after these boxes are checked.
Why did Tamarack file for bankruptcy?
Tamarack voluntarily chose to enter Chapter 11 protection in June 2019 because it was unclear how long the flight restrictions from the ADs, which were triggered by a false pilot report, would be in place. Chapter 11 status allowed the company to focus on supporting existing Active Winglet customers while assisting EASA and the FAA as they reviewed and finalized the resolution of the ADs. During that period, service and sales activities continued and in February 2020 Tamarack celebrated the milestone of the 100th Active Winglet installation.
Have the ADs and voluntary bankruptcy affected the company’s ability to conduct business?
While there were some restrictions under the ADs, which were triggered by a false pilot report, Tamarack has continued to sell, install and service our products. With the fleet fully back in service as of July 2019, Tamarack has worked to recover, hiring back many of the employees who were laid-off and adding to our worldwide network of Partner installers and service centers. We are actively recruiting new employees as we consider the next Active Winglet certification project. Tamarack expects to have some big announcements in 2020!
Will Tamarack continue to maintain and upgrade its technology in the future?
Yes. Tamarack is a proactive, safety-conscious group of inventors, engineers and aviation experts. Tamarack is always looking for ways to improve its products and its customers’ experience. Tamarack continues to offer maintenance, fleet support and enhancements to its Active Winglet technology. The company will continue developing new and exciting innovations for the aviation industry.
What is the status of the NTSB investigation of the fatal Indiana crash in November 2018?
The NTSB investigation of the November 2018 crash in Indiana is ongoing, and our hearts go out to the families of those we lost in the accident. Tamarack, along with the other manufacturers with equipment installed on the aircraft, is supporting the NTSB investigation and we look forward to the final NTSB factual report.
What happened with the 525B Active Winglets for CJ3s and CJ3+s?
Tamarack continues marketing, selling and installing winglets on the CJ3 and CJ3+. There was a 12-month period beginning in 2018 when the company paused selling and installing winglets for these models while investigating some early customer feedback. For more information click here to learn more about the history and our study results or click here [Link to CJ3 winglet product page] for information about Active Winglets for the CJ3 and CJ3+.
MORE ABOUT THE ACTIVE WINGLET TECHNOLOGY
What is Active Winglet technology?
Tamarack’s Active Winglet system is comprised of four components: : 1) a wing extension, 2) a built-in load alleviation device (the Tamarack Active Camber Surfaces, or TACS), 3) an optimally sized and shaped winglet and 4) the ATLAS Control Unit (ACU) in the fuselage of the aircraft that automatically adjusts the Active Winglets to react to flight conditions. All four components work together to provide maximum aerodynamic efficiency. The brain of the system is the Active Control Unit (ACU) which is located under the cabin near the wing root. The ACU is able to detect increased wing load, determine its intensity and deploy the TACS in under 1/10 of one second, allowing the TACS to counteract the increased aerodynamic load. The combination of these parts, working in concert, makes Tamarack Active Winglets three to four times more efficient than any passive winglet and provides ride smoothing, payload increases, and improved wing longevity.
What is the value proposition of Active Winglets?
With Tamarack Active Winglets, calculating Return on Investment (ROI) or the value proposition is a multi-dimensional and very personal equation. Because Active Winglets provide a range of advantages that reduce operational costs or provide other intangible value, all the different factors need to be considered including aircraft valuation, fuel savings and improved safety, utility and comfort. Many Tamarack customers report the value of their aircraft increased with the addition of the Active Winglets and VREF has put a 100% return on the investment. It is more difficult to put a number on better stability and a smoother ride for passengers, though those benefits should be considered. In terms of fuel costs, GA aircraft owners have reported a fuel savings of up to 33% with Active Winglets. For 400 hours of annual flying, the investment in Active Winglets is recouped in just 1.3 years. That isn’t factoring in the benefits to the planet for lower CO2 emissions or the value of the time saved by faster flights and more non-stop flights. With Tamarack, Return on Investment is improved by the Realization of Innovation.
What are the primary advantages of Active Winglet?
Active winglets offer significant improvements, including the following:
- fuel savings of up to 33% for GA aircraft and up to 15% for larger frame aircraft with a correlating reduction in CO2 emissions,
- increased safety through better climb gradients,
- longer non-stop flights and reduced fuel stops,
- improved comfort with less turbulence and a smoother ride,
- modern looks and great ramp appeal,
- lower maintenance costs and longer wing life due to less wing stress,
- increased payload and higher Maximum Zero Fuel Weight,
- faster time to cruising altitude,
- less noise pollution and
- lower stall speed and the ability to use shorter runways.
All of these benefits come from a modification that doesn’t depreciate, but instead adds value to the plane.
Why do I see so many winglets on so many airliners?
Airlines install winglets because there is a solid return on investment. Passive winglets provide about 4% fuel savings and a comparable reduction in emissions. Jet fuel is a major expense for airlines, so operators are always looking for ways to reduce fuel consumption. In addition, airlines are trying to reduce their carbon footprint. Winglets make air travel more environmentally friendly by reducing emissions. Tamarack’s Active Winglets offer up to 15% in fuel savings to commercial airliners and up to 33% savings for GA aircraft with an associated reduction in CO2 emissions and without the compromise of added load for support structures needed with passive winglets.
Do Active Winglets add value to aircraft or make it harder to sell?
Vref, the online aircraft bluebook, indicates that aircraft equipped with Tamarack Active Winglets have a 100% ROI upon sale of the aircraft. Winglet-equipped aircraft will sell before a comparable plane without winglets. Without a doubt, Active Winglets give any aircraft a modern updated look and enhanced performance. Active Winglet customers report that their plane’s value was increased by the installation of Active Winglets, the cost of the Active Winglets was recouped within approximately two years through fuel savings and the owner received full value of the Active Winglets’ cost upon sale.
Do Tamarack’s Active Winglets tie into other aircraft flight control systems?
No, the Active Winglets do not connect or interface with any part of the aircraft’s flight control system. Complete independence provides increased safety and versatility.
Do the pilots have to do anything to make the system work?
Tamarack Active Winglets are fully autonomous. The only time the pilot needs to interact with the system is during pre-flight, with a push-to-test button (BIT test).
Do the active elements move in unison?
Yes, they move symmetrically to relieve wing load when the system senses increased loads on the wing.
Can you see the TACS move while you are flying?
Yes, if you can see the wing tip you may see the TACS (the active, load alleviation parts of the system) move, but during a normal flight, movements occur only during turbulence, or sustained maneuvers (like banking turns).
What if one TACS goes up while the other is down?
In the unlikely event of asymmetric deployment, the pilot is to reduce airspeed in order to reduce the impact of the induced roll and counteract with aileron input. Thanks to the ATLAS system’s design, asymmetric deployment would be a rare occurrence.
For a more details on asymmetric deployment, click here. We have provided the full recovery procedure detailed in the FAA-approved Aircraft Flight Manual Supplement, plus a pilot’s perspective of a real-life asymmetric deployment.