Sensenich has been awarded a Supplemental Type Certificate (STC) for its carbon ground adjustable pitch STOL propeller on Piper Super Cub Aircraft.
This STC allows installation on PA-18 “150” aircraft with Lycoming O-360 series engines, with future STCs planned for Lycoming O-320 powered Super Cubs and certain popular training aircraft.
“Our experimental customers have been raving about this propeller for several years, and now we can offer the same step up in performance to our certified customers,” says Sensenich President Donald Rowell.
Rowell continued, "This propeller’s quick and sure pitch adjustment gives the customer the option of maximum performance no matter what the flight profile may be."
Extensive testing required during the certification project in Alaska showed improved take-off, climb and cruise performance compared to what’s considered the industry standard fixed-pitch STOL propeller. When pitched for the same climb rpm as the standard propeller, climb rate was increased by 140ft/min, cruise speed was identical, and full-throttle level flight (FTLF) speed increased by 7 mph. When re-pitched to match the industry standard propeller's climb rate, cruise speed was increased by 8 mph and FTLF speed increased by 18 mph.
The new Sensenich composite propeller is less than half the weight of the legacy STOL propeller – 21 pounds vs. 44 for the metal unit.
The propeller is available in diameters from 78” to 82”. The STC also covers a 12” diameter, balanced composite spinner.
This STC will be available for new build propellers starting the first quarter of 2021. Pricing for the propeller with STC documentation is $6350 FOB Plant City. Adding the spinner brings the price to $7085 (including STC docs).
Sensenich began making wooden propellers in the early 1930s, introduced metal propellers in the '40s, developed composite propellers in the late '90s, and continues to push boundaries in the light aircraft, unmanned, and marine propulsion markets.
By all accounts, the Props and Pistons Show and Shine held on Sunday, May 27, at Red Deer Airport was a tremendous success. According to the airport’s director of marketing and communications, Nicole Holinaty, the organizers had originally hoped that 200 people would attend the event. Instead, crowds of multiple thousands of enthusiasts arrived to attend the Show and Shine, which served as a fundraiser for the Red Deer Food Bank. In that regard, the event was definite success, having raised $4,035 for the charitable organization. Visitors also donated 2,305 pounds (1,046 kg) of food. As a secondary objective, the event served to introduce the public, and the youth in particular, to airport tenants and the aviation industry in general. The first Props and Pistons Show and Shine dramatically exceeded expectations as almost 50 aircraft and about 200 classic and modified cars were on display, with several food trucks serving attendees. Some of the more interesting aircraft on static display included an RCMP Pilatus PC-12, a Douglas A-26 waterbomber and the Fairview Restoration Society’s Canso.
Bye Aerospace has announced that its prototype Sun Flyer 2 completed its first flight on April 10. The prototype aircraft flight test programme, which began in late March, is being conducted at Centennial Airport (KAPA), south of Denver, Colorado.
According to George Bye, Founder and CEO of Bye Aerospace, “We are excited about the future and the potential the Sun Flyer family of aircraft has to revolutionize general aviation, providing improved affordability and accessibility. Lower operating costs are key to solving the student pilot drop-out rate, which is curtailing the successful attainment of badly needed airline pilots. The Sun Flyer 2’s $3 hourly operating costs are ten times lower than traditional piston-engine flight trainers, with no carbon emissions and significantly reduced noise.”
EP Systems provided the energy storage system for the Sun Flyer 2 prototype being flight tested, including battery modules (packs), battery management unit and power distribution unit. The battery cells are LG Chem 'MJ1' lithium-ion battery cells with a 260 Wh/kg energy density. Bye Aerospace will soon announce who its electric motor partner will be for the family of FAA-certified Sun Flyer aircraft.
The Sun Flyer family of aircraft, including the Sun Flyer 2 and the 4-seat “Sun Flyer 4,” will be the first FAA-certified, U.S.-sponsored, practical, all-electric airplanes to serve the flight training and general aviation markets.
For more information, visit www.ByeAerospace.com or www.GeorgeBye.com
London-based innovation company Exclin Ltd. has announced the Vertex Recreational Vehicle, a next-generation, fuel-efficient vehicle concept that will offer pilots an exhilarating, low-altitude flight over sea. Based on patented, award-winning Vertex Lift System technology, the vehicle will also allow vertical take-off and the ability to explore far-flung island locations beyond the range of a speedboat. Because it flies close to the water using “wing in ground-effect” (WIG) technology, the Vertex Recreational Vehicle will be more efficient than a plane and faster than most boats. And thanks to the Vertex Lift System, it will offer a level of stability and controllability that conventional WIG vehicles cannot – meaning it could start a sea change in fuel-efficient maritime transport.
The Vertex Lift System takes conventional WIG technology and adds “lift thrust”, providing control and stability independent of vehicle speed. The technology solves a key challenge faced by conventional WIG vehicles, potentially opening up a new product class. The “lift thrust” technology also means the vehicle can take off vertically from a ground surface – offering a thrill to the pilot and a spectacle to observers – while still offering the flexibility of conventional take-off and landing on ground or water. Vertex Lift System technology was a Golden Bridge Awards Gold Winner at Energy Industry Innovations in the US in 2017 – and the vehicle was shortlisted in the British Engineering Excellence Awards in the same year. Exclin has been recognised as a Top 500 deep-tech startup in the Hello Tomorrow Challenge 2017, and selected as a semi-finalist in the 2018 European Startup prize for mobility.
The Vertex vehicle will offer pilots the sheer pleasure of flying a high-speed craft within metres of the water’s surface – offering high levels of comfort relative to a speedboat. The high speed of the craft – up to 150kph – means it can reach locations further afield than most boats, such as islands and distant coves. The Vertex vehicle will be easy to fly and require limited training compared to an aircraft – giving it a low “barrier to entry” for pilots. This lower bar could also make the craft suitable for luxury seaside hotels or resort villas in regions such as the Bahamas, Fiji, Greece and the Maldives. To meet the specific needs of recreational pilots, it will be possible to separate the main wing from the body, in order to tow the Vertex Recreational Vehicle with a car. Classified as a “WIG type B” maritime vehicle, the Vertex Recreational Vehicle will be competitive to fly, operate and own.
Because of the Vertex Lift System, the Vertex Recreational Vehicle will represent a step forward for WIG vehicle safety – overcoming barriers to developing this product class. When the vehicle is in ground-effect mode – flying a few metres from the water surface – the lift system is designed to respond dynamically to changes in conditions such as gusts of wind, to give the vehicle extra stability and control. In addition, the vehicle will have the ability to operate in free flight, up to the maximum altitude of 150 metres allowed for a WIG type B vehicle. Although this will not be as fuel-efficient, it means the vehicle can be operated safely in harsh conditions, such as rough seas.
In future, Vertex Lift System technology could revolutionise freight transport in maritime locations – enabling a combination of speed and efficiency that fills a gap in the value chain. Because of their range and speed, Vertex vehicles will be well placed to take advantage of the trend toward faster, point-to-point high-speed connections as an alternative to congested, hub-specific travel routes. They could also operate in destinations that are out of reach of boats, such as beaches and hangars – and can fly over frozen waters or via Arctic routes. Compared to boats, Vertex vehicles would also be able to operate for a longer period of the year – making them more reliable for the needs of high-speed freight.
For more information about Exclin or the Vertex Recreational Vehicle, see www.exclin.com