For reasons that are both easy to understand and completely counterintuitive, the four-seat, piston-powered airplane has, for decades, dominated the GA marketplace. And it continues to do so, even though the number of pilots who buy these planes as a transportation tool has slowed dramatically, mostly in lock step with the slowing of the overall GA piston market. The tens of thousands of personal planes sold every year in the ’60s and ’70s, the true heyday of flying in the United States, has turned into fewer than a thousand planes in a good year, and the two dozen or more available models have shrunk to just a handful.
That four-seaters should be the prototypical GA ride makes sense to pilots—but to few others. Considering that most flights go out with one or two occupants (including the pilot), it seems a two-seat alternative would make sense. I’ve thought so for years, but the market was never developed for such a runabout. This is surprising because two-seat planes, like the Van’s RV series, dominate the kitbuilt market and have for decades. Not so in the Part 23 world.
Last year, GA manufacturers worldwide turned out 1,139 piston-powered planes. In the US, manufacturers of piston planes delivered 829, including 771 singles. Of those singles, 380 of them were Cirrus SR22s or SR20s, and 160 of them were Cessna Skylanes, Skyhawks or TTx (a single delivery).
For its part, Piper Aircraft delivered 114 four-seaters in 2018. So those three manufacturers—Cessna, Cirrus and Piper—accounted for all but 87 of the piston singles sold. Sales of six-seat (or larger) piston planes need to be factored in, as well. Piper sold 20 M350s (formerly the Mirage) and Beech handed over 15 G36s.
Internationally, it doesn’t get any more crowded. The top seller among other companies was the Diamond DA40, with an impressive (but still modest by historic standards) 45 deliveries. The bottom line is that recent sales of four-seat models are scant, and those sales are dominated by a few companies.
Moreover, the profile of the customers putting cash on the cowling for four-seat planes has shifted tremendously, as well. In the ’60s and ’70s, though it’s hard to come up with firm numbers, most four-seat piston planes were marketed and sold to private owners. That still happens in some instances, especially in the case of Cirrus Aircraft, which targets affluent pilots looking for high-tech personal transportation. The two other major players, the Textron Aviation Cessna Skyhawk and the Piper Aircraft Archer, are overwhelmingly sold to flight schools.
Are you an aviation enthusiast or pilot? Sign up for our newsletter, full of tips, reviews and more!
There have been a couple of departures from our last roundup of four-seat planes. Textron Aviation pulled the plug on the critically acclaimed but slow-selling TTx (formerly the Columbia, among other names), and it ended production of its problematic diesel-powered 172 JT-A. Piper announced this spring that it was no longer producing its four-seat retractable landing gear Arrow model, though the company acknowledged that it could and likely would restart production if a substantial fleet order materialized.
Another major change in the marketplace is the drying up of the piston-single retractable gear market. Beech sold 15 Bonanzas, and Mooney sold seven each of its Ovation Ultra and Acclaim Ultra, and that was about it. There are a couple of emerging retractable-gear models. The Pipistrel Panthera has been inching toward certification for a few years now—is this the year it gets it done? —and Diamond’s exciting DA50 retractable-gear single is looking as though it might get the company’s attention after sitting on the back burner for the past several years. Both planes are included at the end of this roundup as being on the horizon, thought if you’ve been in aviation very long, you know that the horizon is usually much farther away than it looks.
The other big wild card in this whole four-seat equation is the Part 23 rewrite—I guess we’ll have to come up with another term that now it’s been rewritten. These liberalized certification standards have been adopted but not put into practice much. As such, the new FAA standards will allow manufacturers to wrangle approval for their light planes by using industry consensus standards, much the same way as it’s done in the LSA world but with more FAA oversight. Will these changes result in more Part 23 four-seaters (or any other type, for that matter)? We’re just not sure. But in the LSA segment, this certification approach has resulted in an impressive number of new designs.
Lastly, there remain two big stumbling blocks for the return of the four-seat market to anything resembling its former glory. First, and most obvious to the consumer, is that these new planes are expensive, not just in dollar numbers, but even when adjusted for inflation and other factors. Second, the manufacturers aren’t getting rich on these planes, either. Everything they use to build these planes, including the labor, is more expensive, too.
One ray of hope is, ironically, the aging of the piston fleet. With the introduction by Garmin and a few others of game-changing avionics retrofit options for owners of older planes, which is a lot of us, there’s suddenly new life for these planes. That doesn’t mean they’re getting any younger though, just that they’re more useful to us for a while longer. But the truth is, the supply of decent used planes is shrinking, and they cost a lot to maintain. There’s nothing we can do about either of those things.
There’s also the subject of electric power. The dream of having small planes that run on battery power is great, but it’s not happening anytime soon. Four-seat planes are about twice as heavy as two-seaters, and battery power doesn’t make much sense on two-seaters, yet. Until there are major breakthroughs in battery storage capacity and/or weight, electric flight will remain more science experiment than practical solution.
Some of the four-seaters that remain in production, however, are impressive examples of how new technology can successfully breathe life into great, old designs. Cessna’s high-wingers spring to mind. Others, like the Cirrus piston singles, are new airplanes, relatively speaking at least, and show that innovation can actually create new markets.
Click the button below to see our lineup of production Part 23 four-seat singles. Enjoy.
Cirrus SR22 G6/SR22T
Okay, the Cirrus SR22 isn’t really a four-seater—it’s a four-/five-seater, but we’ll allow it since the plane’s general configuration is identical to other recent Cirrus models, but with extra room inside to add a third, smaller backseat passenger. It’s a good thing we’re counting them, too, as the SR22 is the most-produced light plane in the world. It’s not the fastest piston single in the skies—that distinction belongs to the Mooney Acclaim Ultra, but the SR22 is the most technologically advanced model available, with its built-in whole-airplane recovery parachute system, optional known ice protection, excellent exterior lighting and much more. It’s also the bestselling single in the world once again, despite a steep price of around $900,000 with all the bells and whistles. The latest model, the SR22 G6, has the Garmin G1000 NXi avionics suite, which was rare when Cirrus launched its G6, but is now in just about every new model. NXi is great, but Cirrus takes it several steps further with its Perspective keyboard controller which, with practice, cuts down on pilot workload and eases operation. The SR22 is available in a normally aspirated or turbocharged version, though most buyers go with the turbo. That would be our call, too, as the blower allows the plane to achieve its best true airspeeds when you head up to the mid-teens, where we spend most of our time when we’re flying the plane.
Niche: Premium fixed-gear transportation plane.
Bragging Points: The chute, great styling, outstanding visibility and excellent cross-country performance, high style and excellent visibility.
Tradeoffs: Premium price point, control feel that leaves something to be desired, less-than-best-in-class speed.
Base Price: $539,900; $639,900
Price Typically Equipped: $950,000
Competitors: Mooney Acclaim Ultra, Mooney Ovation Ultra
Fun Fact: Cirrus offers trade-up programs for pilots looking to up their game in an SR22 and later transition to the SF50 Vision Jet.
Specs SR22; SR22T
Main Construction: Composite
Engine/HP: Continental IO-550-N/310 hp; Continental TSIO-550-K/315 hp
Propeller: Hartzell, 3-blade, composite, constant speed, 78 diameter; Hartzell, 3-blade, composite, constant speed, 78″ diameter
Avionics: Cirrus Perspective+ By Garmin (Garmin G1000 NXi)
Top Cruise Speed: 183 kts; 213 kts
Stall, Landing Configuration: 60 kts; 60 kts
Max Range: 1,118 nm; 1,021 nm
Max Takeoff Weight: 3,600 lbs.; 3,600 lbs.
Payload (full fuel): 798 lbs.; 716 lbs.
Useful Load: 1,330 lbs.; 1,248 lbs.
Takeoff/Landing Distance: 1,082 ft./1,178 ft. (groundroll); 1,517 ft./1,178 ft. (groundroll)
Mooney Acclaim Ultra
Mooney is back in business, and its latest models offer huge improvements in comfort and utility, while taking nothing off the eye-popping speed numbers. The Mooney Acclaim Ultra is different than previous Mooneys because it has two doors—one on each side. Construction is very similar to previous sheet-metal Mooneys, with the exception of the forward fuselage section being composite, which allowed the company to add a door and make both doors substantially larger than previous portals. As a bonus, the windows are also lower for better overall visibility. How fast is the Acclaim Ultra? As they say in Beantown, it’s wicked fast, to the tune of 240-plus knots fast. To get that speed, Mooney pairs its slick aerodynamics to a 310 hp turbocharged Continental TSIO-550. The Acclaim Ultra is now standard with the Garmin G1000 NXi, so owners can get all the latest avionics goodness. In all, the Acclaim Ultra is a four-seat single that’s faster than any other plane in its segment, has FIKI ice protection as an option and is more comfortable than ever.
Niche: Premium retractable-gear personal transportation plane.
Bragging Points: Best speed in the world, greatly improved interior, comfortable seats, tremendous range.
Tradeoffs: It’s smaller inside than an SR22 or TTx, and the gear adds complexity, weight and, down the road, maintenance.
Base Price: $769,000
Competitors: Cessna TTx, Cirrus SR22
Fun Fact: The Acclaim Ultra can trace its roots back to the original Al Mooney-designed M20 of 1955, with a wood wing. It’s come a long way since then, but it’s still built in Kerrville, Texas.
Specs
Main Construction: Composite
Engine/HP: Continental TSIO-550-G/280 hp
Propeller: Hartzell, 3-blade, metal, constant speed, 76″ diameter
Avionics: G1000 NXi
Top Cruise Speed: 242 kts
Stall, Landing Configuration: 56 kts
Max Range: 1,100nm (45-min. reserve, standard tanks)
Max Takeoff Weight: 3,368 lbs.
Payload (full fuel): 384 lbs.
Useful Load: 1,000 lbs.
Takeoff/Landing Distance: 2,100 ft./2,650 ft. (50 ft. obstacle)
Mooney Ovation Ultra
When Mooney got back into business several years ago now, Job One was to reinvigorate the lineup. In 2017, Mooney got FAA approval for its Acclaim Ultra, the turbocharged version of its slick airframe. The normally aspirated model, the Ovation Ultra, came next. The company got the thumbs up for that model last year. Like the Acclaim Ultra, the Ovation Ultra gets a fiberglass shell on the forward fuselage in place of the former sheet-metal outer shell. As on the Acclaim, this gave Mooney the ability to reimagine the forward shell, adding a pilot’s side door, enlarging and lowering the windows, all without adding additional weight. Like the Acclaim Ultra, the Ovation Ultra features the Garmin G1000 NXi avionics suite. Known icing protection is available, as is air conditioning. The big differentiator between Ovation and Acclaim is the powerplant. The Acclaim, designed to fly high, relies on better true airspeeds up there without losing horsepower for its best-in-class speed. The Ovation, on the other hand, accomplishes this with more power—310 hp compared to 280 hp for the Acclaim Ultra. It works great, too. The Ovation Ultra is the fastest normally aspirated production piston single, achieving just a couple of ticks short of 200 knots true. The model also boasts tremendous range, greater than 1,400 nm, and terrific climbing ability.
Niche: High-performance retractable-gear transportation plane
Bragging Points: Fastest non-turbo plane in its class. Top-notch avionics.
Tradeoffs: Not as roomy as its fixed-gear competition. Does its best work at lower altitudes.
Base Price: $689,000
Competitors: Cirrus SR22, Mooney Acclaim Ultra
Fun Fact: Mooney delivered seven Ovation Ultras in 2018, the same number as for the Acclaim Ultra.
Specs
Main Construction: Metal with forward-fuselage composite skin
Engine/HP: Continental IO-550-G/310 hp
Propeller: Hartzell, 3-blade, metal, constant speed, 76″ diameter
Avionics: Garmin G1000 NXi
Top Cruise Speed: 197 kts
Stall, Landing Configuration: 59 kts
Max Range: 900 nm (45-minute reserve, standard tanks)
Max Takeoff Weight: 3,368 lbs.
Payload (full fuel): 514 lbs.
Useful Load: 1,130 lbs.
Takeoff/Landing Distance: 1,600 ft./2,500 ft. (50 ft. obstacle)
