Here's the simple response: light aircraft with modern (read: powerful and efficient) engines tend to perform admirably well in high elevations, higher heat, and high humidity. If you fly almost any of these aircraft in high density conditions you already know they perform sprightly.
In contrast, I logged hundreds of Cessna 150 hours from my days as a flight instructor, and — with a similar amount of power as most LSA but also quite a few more pounds — that aircraft definitely does not perform as energetically.
So, a higher power-to-weight ratio is good, but do limits exist?
“I was very impressed with the performance of the CTLS GT with the Rotax 914 Turbo," said Flight Design test pilot Nico Stambula. "CTLS GT Turbo climbs like a rocket and easily reaches 140 knots at altitude." Stambula added that the 914 intercooled engine maintains consistent temperatures. In addition, this is a very smooth flying package."
The first CTLS GT will be shipped to an owner in South Africa, which has both high temperatures and high elevations. Flight Design believes the new model "should be just great for operating in those more challenging conditions."
With the addition of the Rotax 914T option, the long-running CTLS extends its range again. Various models are available as a European 600 kilogram (European) Ultralight, an ASTM-compliant Special LSA, or as an EASA-certified aircraft. Models are available with the Rotax 912, the 912iS and now as a turbocharged performer as the CTLS GT 914T.
Someone was bound to ask why engineers didn't use the newest 141-horsepower Rotax 915 iS, so I queried the company on this question.
Since the start of Light-Sport Aircraft, Flight Design has been represented in America by Tom Peghiny, proprietor of 
Recently I interacted with a reader, someone considering a light aircraft for purchase. He inquired about the ability of ultralights or Light-Sport Aircraft to cope with high density altitude. He raised valid and worthy points but showed a certain lack of knowledge about the capabilities of light aircraft. (We are working on a more detailed article on this subject.) Here’s the simple response: light aircraft with modern (read: powerful and efficient) engines tend to perform admirably well in high elevations, higher heat, and high humidity. If you fly almost any of these aircraft in high density conditions you already know they perform sprightly. In contrast, I logged hundreds of Cessna 150 hours from my days as a flight instructor, and — with a similar amount of power as most LSA but also quite a few more pounds — that aircraft definitely does not perform as energetically. So, a higher power-to-weight ratio is good, but do limits exist?
Don't feel too conspicuous. It's happening to me, too, along with nearly everyone else. [
ScaleWings reported, "Aircraft serial number #001 took off at 11:37 am into a light cloudy sky." The all-important first flight went without problems.
"Chief Test Pilot Jirko 'Jiri' Hybler praised the balanced and highly maneuverable handling of the aircraft, managing crosswinds of more than 10 knots with superior control," continued ScaleWings. "Within the first flight hours all systems were checked to prove their functionality."
The company reported test flights included cycling up and down of the all-electrically-driven landing gear. First flight went exactly to plan and 35 minutes later, the aircraft landed safely.
"This first flight of the serial aircraft configuration of the SW-51 Mustang is an important milestone for our team," ScaleWings said.
The SW-51 aircraft program was launched in 2013, followed by a successful first flight of a “proof of concept” prototype just one year later in 2014. Since then ScaleWings has been working on both production processes for the aircraft and preparing the company's production site in Krosno, Poland.
The ScaleWings SW-51 Mustang is a true-to-scale high performance replica modeled precisely upon the original North American P-51 Mustang aircraft dimension but fully built from carbon fiber.
No question, SW-51 deserves the closest possible examination. This is an amazing construction.
SW-51 is an intricate eye-catcher featuring more than 100,000 details such as simulated rivets, screws, fabric and more that were meticulously handcrafted into the manufacturing molds. Even when you physically touch them, rivets and screw heads feel real. They're not; it's a marvelous illusion.
Schoeller's unique treatment combines with a high quality chrome-like finish, allowing SW-51 to almost-identically mirror the original's aluminum appeal. Without a doubt, this is an unprecedented execution beyond anything I've ever seen.
The aircraft is designed for up to 750 kilograms (1,653 pounds) gross weight, while it is currently being flown in a category limited to 600 kilograms (1,320 pounds) in accordance with prevailing European standards. The numbers show SW-51 could fit nicely into FAA's proposed Light Personal Aircraft but it could also stay a Light-Sport Aircraft. A fixed gear, fixed pitch prop version has been in discussion for some time.
With first flight in its logbook, ScaleWings said, "We will produce and deliver 5 aircraft in 2021 and 12 aircraft in 2022."
SW-51's configuration features a 
"SW-51 Mustang costs less than 10% to acquire, less than 1% to maintain and it burns less than 15% of the fuel of an original North American P-51 Mustang aircraft. That's a big savings but this is not an inexpensive kit.
This millennia, the Brazilians have adapted to Light-Sport Aircraft and ASTM standards, which the country's CAA accepts (as do several other nations). Not only have they populated the skies over Brazil, but several companies have moved to establish their business in the USA.
Montaer's MC01 starts with 4130 molybdenum steel tube "to provide greater safety to the crew." MC01 is skinned with an aluminum fuselage and wings. These materials are popular with American pilots who are aware they can achieve repairs almost anywhere.
MC01 is powered with the 100 horsepower 
MC01 has dual control yokes with a steerable nose wheel and dual toe brakes. Although many Sport Pilots say they prefer — or at least have adjusted to — joystick control, many pilots find control yokes preferable. No joystick option is presently available.
However, Montaer has also followed Paradise's lead by offering hand controls to accommodates pilots who want to fly but have lost the use of their legs. In fact, the very first American purchase of Montaer MC01 is going to such a pilot up near Oshkosh. I'm sure I join many others in congratulating Bruno and Montaer in making arrangements for such people to achieve their dreams of flight.
Elevator trim controls are provided on both yokes. At the base of the instrument panel pilots will find all circuit breakers and other switches. Throughout this design, you see a layout that most pilots will find familiar and comfortable. All these common controls may help pilots quickly adapt to flying Light-Sport.
Montaer has installed all leather seats, headliner and side panels (photo). The interior fit and finish will please most pilots. Both seats are fully adjustable forward and back allowing, for comfort for tall and short people. These adjustments can be made while sitting in the seat. Yet MC01's seats do more.
Again similar to Paradise models — which are no longer available in the USA — MC01 has fully-reclining seats. While the company said, "This is important for tall people to adjust the seats for more head space," it brings additional benefits. For example, if you want to camp in your MC01, the reclining seats can provide a sleeping surface. The aft cabin has sufficient of room to permit this.
Although 
Yet no one can dispute that C42 — once rebadged as Cyclone for American buyers — has for many years been THE success story in Germany. This southern German company celebrated its 50th anniversary in 2020.
Our favorite British aerojournalist, 
Now in its "C" model configuration, C42 is one of the most successful European microlights (a category between Part 103 ultralights and LSA, but closer to the latter). Comco Ikarus has evolved the machine into a fine airplane.
In England, C42 is sold by 
Aft of the cockpit there’s a frangible cover which the BRS rocket fires through, and a very large quickly removable panel on the port side, through which the fuel quantity can be seen and a lot of the interior structure visually inspected. The rear baggage bay can hold up to 100 pounds, weight and balance allowing.
C42C's tail consists of a strut-braced tailplane and separate elevator, a slightly swept-back vertical stabilizer, which carries a broad-chord rudder and a small ventral fin tail bumper. Wings, tail, flaps and control surfaces are all covered in XLAM (a type of sturdy, dimensionally-stable fabric sailcloth) with Tanara Teflon thread (which is impervious to UV light) used for the stitching.
Less obvious changes include a significant revision of the wing structure with more use of carbon fiber. C42C's cockpit roof has been completely redesigned and the doors are now hung on redesigned hinges.
A sturdy hydro-pneumatic tricycle undercarriage offers nosewheel steering via the rudder pedals and carries 
After fastening my four-point harness, I raised the throttle into its correct position and familiarized myself with the cockpit. Throttles on both sides fold flat to aid ingress and egress.
C42C's instrument panel is large and could easily carry just about every possible permutation of instrumentation, from very basic analog to the latest 
A central column braces the instrument panel and carries push/pull plungers for the choke; cabin heat and carb heat; a transceiver and transponder; and a toggle switch for the intercom. C42C's fuel selector is located at the base of the central column by the pilot’s right leg; easy to see and reach. Large map pockets are built into the doors.
A center stick features a comfortable foam grip with buttons for electric elevator trim and a bicycle-type brake lever with integral park brake. The large handbrake-type flap lever is set into the roof, in front of a red T-handle for the BRS.
With my solo loaded weight about 200 pounds below gross, a paved runway, and a brisk headwind, I anticipated a stellar take off and climb characteristics and I was not disappointed! The prop was pitched for cruise but you’d never guess. I reached 1,000 feet above the runway before the airfield boundary.
After shooting the air-to-air photos, the camera ship departed and I took a look at C42C's general handling. All controls were nicely harmonized and authoritative. The roll rate in particular is much more sprightly than the C42A, while the stick forces felt lower than I remembered, no doubt due to the spades mounted on the ailerons. A short center stick does not provide much mechanical advantage but the spades help. Control around both pitch and yaw axes was equally effective, and keeping the slip-ball centered took only small amounts of rudder. The electric pitch trim is effective and nicely geared.
Moving onto an examination of the stick-free stability around all three axes reveals the directional stability is definitely soft to the left and neutral to the right, while spiral stability is slightly positive from the right and neutral to the left. The longitudinal stability is quite strong; a 10-knot displacement from a trimmed speed of 70 knots resulting in a long wavelength low amplitude phugoid that damped itself out after three lazy oscillations. Importantly, C42C is not divergent around any axes.
Slowing down to explore the slow speed side of the flight envelope revealed no unpleasant traits. As the speed reduced past 60 knots, I moved the flap lever to +2, which lowers the flaps to their maximum of 40° and causes a significant change in pitch trim, although this is easily trimmed out.
With full flaps and a reasonable amount of power C42C showed no desire to stall. At modest stall entry and with the nose just above the horizon, C42C mushed and wallowed while the sink rate increased. No stall warning is provided but you feel a mild aerodynamic buffet. Hold the stick on the backstop and it hunts slightly in pitch while sinking. Adequate aileron control is available post-stall.
When I used a more aggressive technique C42C stalled with a slight wing drop. At test weight, the wing drop came around 32 knots. Performing a departure stall I retracted flaps to the take-off setting of +1 (15°), opened the throttle and pitched up …and up …and up! It feels as if I’m lying on my back before the wing finally gives up and the nose falls through.
Comco Ikarus reports a glide angle of 11:1 (a Cessna 150 is about 9.5:1), while minimum sink rate is around 400 feet per minute.
As I’d anticipated, this C42 is considerably quicker than the earlier models, and because the air is as smooth as glass I was relaxed as the ASI needle slipped into the yellow arc. C42C was still accelerating at 5000 rpm. Top-of-the-green arc is 82 knots at 2,000 feet and 4800 rpm. At about four gallons per hour, you can comfortably plan for 300 nautical miles with a 30-minute reserve. That’s about 25 nautical air miles per gallon.
As I got back to base, I did a few take offs and landing, and for the first time I found the roof-mounted flap lever slightly intrusive; you’re constantly swapping hands. It’s not a big deal, but writers have to complain about something.
In a way, you already know this aircraft or at least its look-a-like predecessor, Paradise's P1NG. As happens in every industry, a key engineer left a family airplane building business — Paradise, run by granddad, Noe de Oliveira — and started his own aircraft factory. The departure occurred eight years ago.
Now, Bruno de Oliveira has won FAA acceptance of his Special LSA model. Brazil uses ASTM standards as well so he also got approval in the South American country.
Importer Ed Ricks of 
With his MC01, Bruno and Montaer are filling a void.
Both models veered away from the uber-common joystick seen on most Light-Sport Aircraft. Yet yoke control has a large global following as Cessna, Piper, Beech, Mooney, and more all use yokes. Since those brands trained most Yankee pilots, it makes sense to offer them a control already familiar to so many pilots.
MC01 also continues with a very popular feature: a voluminous baggage area accessed by a third door. 
The very first U.S. delivery of MC01 is headed to Wisconsin where a pilot has ordered one with a very special extra: hand controls, a choice available to offer assistance to some pilots. That airplane is due to leave Brazil in March and may be seen at EAA's big summer show.
MC01’s airframe is built using 4130 molybdenum steel tube (photo) providing a proven safety to the occupants. The exterior is all aeronautical aluminum fuselage and wings. A steerable nose wheel, dual toe brakes, and control yokes are just some of the features of this well built airplane.
Ed has known Bruno de Oliveira for eight years and will be in charge of sales in the USA. He is seeking dealers in certain states; if this interests you or if you want more details before Sun 'n Fun, call Ed at 623-695-9040 or 
Yet "affordable" is one of those very personal words. What each of us can afford — or chooses to afford — is different than almost everyone else.
Therefore, an especially wide range of choices is good. I have written a lot about very inexpensive aircraft (see many in
“As we come out from under Covid-induced flight training restrictions, operators of several flight schools have come to us asking for an affordably-priced, all-metal, Garmin-equipped training aircraft,” CEO, Matheus Grande, stated. “Our solution is the highly-advanced and very-affordable entry-level Colt SLSA, which is priced at $139,900, below the cost of the fully-equipped Colt-S and Colt-SL models.” Their Texas Aircraft Colt SLSA standard package includes:
“When you couple the 
So, is this a no-frills LSA? While it does have less equipment than the standard Colt, the main change is the single Garmin screen. I currently use a neighbor's RV-12 with a single screen in it and I find this no restriction. I can also refer to an iPad in the cockpit and paired with a sender from 
Nonetheless, new is nice and Colt is one beautiful machine made in the USA of all metal, just as many buyers want. What are your options?
If a partner purchase won't work for you — perhaps you don't have any local prospects or perhaps you simply prefer not to share your airplane with anyone else — then Texas Aircraft has secured financing. Learn more about their program in 
More About LSA Costs — What I'd like to invite is your read of AVweb writer Paul Bertorelli's article, titled, "
Joining the movement, 
Seamax officials have made good use of their location at 
"This is the fourth year in a row that Seamax will exhibit the M-22 in this great show with the presence of our Brazilian team," added Shalom. "We will be right in the middle of the show at our traditional booth #71."
The 
Then came the sophisticated CTLS, wholly redone for the American market. It enlarged the cabin and lengthened the fuselage becoming more deluxe throughout.
Now, we come to F2 in what I'm calling the third generation of the iconic shape that still leads the LSA market after almost 17 years. The one and only example presently in America is currently based at 
Nearly every airshow was cancelled for 2020 amidst the global economic carnage driven by lockdowns and travel restrictions to contain Covid.
Well, every show was scrubbed except the Midwest LSA Expo in Mt. Vernon, Illinois. Because that one and only event happened — with no negatives regarding the virus, so far as I know — I got to see and fly Flight Design's latest and greatest, the F2. Not only was the airshow a welcome change from the social barriers everyone had faced over the last few months, but Midwest 2020 provided a venue to see and fly the new model.
"CTSW was a Porsche. CTLS was a Corvette. F2 is a Cadillac," said Tom Gutmann, Jr., the younger half of the father and son 
Tom explained that F2 may look similar to CT but is a nose-to-tail, tip-to-tip refreshed design. It has been some time in development because as Tom noted, "Flight Design engineers had to rework the whole airplane. It is significantly larger than CTLS yet final production models should weigh no more." That's some accomplishment!
It is also built quite differently. All CTLS are essentially "hand made" with hand-layup molds that display the skill of factory workers yet makes each one unique. For F2, Tom said, Flight Design uses molds created on 5-axis CNC shaping tools so each one is fabricated to precise specifications. You may not be able to see the difference in construction but the new method is far better for serial production.
"F2 is manufactured to close tolerances in pre-impregnated carbon fiber for great structural strength and light weight," said Flight Design in Germany. With prepreg carbon fiber from American company Hexcel, F2's honeycomb-core fuselage signifies a big step forward.
Likewise, F2's new wing is a major redesign; the outboard sections feature aerodynamic cuffs (nearby photo).
F2’s tail is all-new as well. CTLS's full-flying stabilator is replaced with a wider stabilizer that has a discrete two-piece elevator with a center section that remains stationary forming what's often called a duck tail. This aids in meeting the ASTM handling requirement. One result is that the airplane does not pitch up during a departure stall.
The altered horizontal tail works cooperatively with the wing cuffs to make a highly stall-resistant airframe, a feature FAA admires so much they gave Icon Aircraft 
Cruise speed at a low altitude (approximately 3,000 feet density altitude) exceeded 115 knots while burning barely over 4 gallons an hour; Rotax's 912iS is known for its fuel miserliness. This allows a topped-off F2 to fly close to 1,000 statute miles. You can fly cross country to a destination and return to base without buying fuel. I once enjoyed this quality while 
A combination of wing cuffs, revised empennage with its fixed duck tail, and tip-vortices-reducing winglets make F2’s stalls and slow flight about as uneventful as I've experienced; much like Icon's A5, which was equally docile at slow speeds. Even with the joystick full aft F2 did nothing exciting. It did not drop a wing and resisted any stall break.
I always enjoy when a new airplane company arrives on the market and sets plans in motion to expand and improve their flying machine. Texas Aircraft and their Colt 100 Light-Sport Aircraft is one such company.
Lead by the energetic and ambitious Matheus Grande, 
Rather than repeat what 
Texas Aircraft announced, "The addition of the 
Scott explained that while the Colt’s standard Dynon avionics package is TAA compliant and amazing for flight training, "flight schools are asking for Garmin." Providing Garmin equipment can help reduce the time and cost associated with training students on multiple avionics systems as they progress.
“Today’s students want to train on the same avionics they will be using later as they advance into more complex Garmin-equipped aircraft,” Scott said. “The wide variety of Garmin avionics that we will make available for the Colt will give flight schools and private owners a great deal of flexibility in how their avionics are configured.”
“We are now offering Garmin-equipped Colt aircraft with the basic VFR package starting at $139,000," said Scott. The fully-equipped, “Heavy IFR” Garmin package is priced starting at $170,500 (see below).
“So, whether you want a sleek single-display Garmin G3X Touch panel or dual G3X Touch instruments for a truly impressive digital screen experience, we offer choices,” Scott said. “All Garmin-equipped IFR-capable Colts come standard with a G5 backup. We are extremely excited to be able to offer Garmin’s popular line of avionics in our new-generation Colt.”
Almost everyone knows at least some facts about batteries. Everything we carry around these days seems battery powered and all of us are ever in search of an electric outlet to get more charge. Until battery energy density takes a substantial leap forward, electric airplanes have some clear limitations. Yet primary flight instruction — at least done in the pattern within easy reach of landing back on the field — is one early potential for electric powered LSA.
However, not all batteries are identical. — The British Lithium-Sulfur (Li-S) battery technology company, Oxis Energy and Texas Aircraft Manufacturing are developing an electric power system for Colt and initially, Oxis projects that the flight time will be in excess of two hours and an approximate range of 200 nautical miles. While still short of true cross country flying, this sounds encouraging.
Huw Hampson-Jones, CEO of Oxis Energy, said, “Oxis Li-S technology offers significant benefits to aviation. The use of sulfur as a non-conductive material provides enhanced safety and is superior to current Lithium-Ion technology. Our 90kWh battery system is 40% lighter than current Li-Ion technology and will be powered by its 'High Power' cell at 400Wh/kg."
Oxis is involved in the design, development and now the move towards commercial production of Lithium Sulfur cells for battery systems. Oxis manufactures and produces all aspects and components in the making of the Li-S cell and does not use any toxic or rare earth material in the composition of its Lithium Sulfur cell technology. Oxis has been granted 193 patents with 115 pending.
Texas Aircraft's Matheus added, "Our eColt, manufactured at our factory in Texas, will use Li-S battery cells made at the Oxis factory. The powertrain will be supplied by WEG and the battery and its management system (BMS) will be provided by Akaer Group of São José dos Campos, Brazil." (Note that while Texas Aircraft is an all-American company, Matheus and his team hail from Brazil so they have many connections in that southern hemisphere country.)
"This project is in early stage," said Matheus. "We are not changing the Colt, but we are studying the possibility to add some battery packs under the plane (maybe looking like a Cessna Caravan cargo) but this is still under discussion since we are also evaluating adding the battery packs into the wings."
This week kicks off the truly gigantic trade show known by its sponsoring organization's abbreviation: 
I always find something of interest to the light aviation, recreational flying community. This year, I'm on the lookout for 
According to a 
“Since our inception over 28 years ago, Garmin has been committed to providing superior products that are known for their innovation, reliability and intuitive design,” said Phil Straub, Garmin executive vice president, managing director of aviation. “This milestone is a testament to our long-established commitment to making significant investments in research and development, as well as the hard work and dedication of thousands of passionate Garmin team members that I have the pleasure of working with every day.”
“As we celebrate this exciting accomplishment, I am very proud of how our teams have managed such significant growth, while maintaining the culture of our company as our founders set forth,” said Carl Wolf, vice president of aviation marketing and sales. “The breadth and depth of our certified aviation product line has expanded greatly over the years, allowing us to develop new markets for Garmin. This incredible milestone doesn’t even include the hundreds of thousands of portable and other non-certified products that our customers use every day. On behalf of Garmin, I wish to express my utmost gratitude to our loyal customers, our dealers and the aircraft manufacturers all around the globe, who have helped us to accomplish such a tremendous achievement in Garmin’s history.”
"It cannot be done," is the quick dismissal from many in aviation, referring to instrument flying in a LSA. In 2017, I venture to say everyone in aviation (worldwide) knows about Light-Sport Aircraft and the Sport Pilot certificate, but a superficial knowledge can be a bad thing. The details unveil more.
So, as some say, it cannot be done, right? Wrong.
At 
