What to the following events have in common? …Sebring LSA Expo, Heart of Texas LSA Expo, Midwest LSA Expo, Sport Pilot Tour… Answer: All are focused marketing shows generating keenly interested crowds to examine Light-Sport Aircraft. When that happens, business arrangements sometime result, and not all deals are between airplane buyers and sellers. *** At the Sebring LSA Expo FK Lightplanes USA struck an agreement with Hansen Air Group. The latter, an Atlanta-based national seller of the Sky Arrow and new FP-04 Peregrine, signed on to represent the Fk9, seen in Florida atop Baumann BF-1500 floats. One aviation family helps another as FK’s father-and-son Tony and Adriel Anderson linked up with twin brothers Jon and Ron Hansen. *** Recently I attended an open house for another mini-conglomerate in light-sport aviation based at the Melbourne, Florida airport.
Cosmos (France)
Website: http://www.cosmos-france.com
Email: Ole@LearnToHangGlide.com
Phone: (011) 333-8035-6800
Darois, -- 21121 - FranceCosmos Phase III
Seating | 2, side-by-side |
Empty weight | 356 pounds 1 |
Gross weight | 990 pounds |
Wingspan | 32 feet |
Wing area | 160 square feet |
Wing loading | 6.2 pounds per square foot |
Length | 7.3 feet |
Height | 12.0 feet |
Kit type | Fully assembled 2 |
Notes: | 1Before options; Cosmos factory lists 188 kg (413 pounds) 2Chronos Wing 16.0 needed to stay within speed limits listed in FAR Part 103, which allows fully built 2-seat trainers under exemption. |
Standard engine | Rotax 912 |
Power | 81 hp 3 |
Power loading | 12.3 pounds per hp 3 |
Cruise speed | 65 mph |
Never exceed speed | 98 mph |
Rate of climb at gross | 1,500 fpm |
Takeoff distance at gross | 200 feet |
Landing distance at gross | 200 feet |
Notes: | 3 Tested with 100-hp Rotax 912S, so 9.9 pounds per hp. |
Standard Features | Fully assembled ultralight, 81-hp Rotax 912 engine, comfortably padded "bucket" seats, removable fully-folding wing, remote choke, shock-absorbing gear on all three wheels, side skirting with inside bags, assisted wing lift for setup, 3-blade prop, instrument panel pod (without instruments). |
Options | Hydraulic brakes, 100-hp Rotax 912S engine, electronic flight deck (SkyDat GX2; see function list 4 Altimeter, vertical speed indicator, airspeed indicator, engine rpm, total engine hours, flight duration timer, battery voltage meter, exhaust gas temperature, cylinder head temperature, water temperature, air temperature, glide ratio, fuel flow meter for instantaneous and accumulated fuel used, fuel tank level gauge, and back-lighted panel. Fuel tank probe and fuel flow sending unit are optional. When purchasing the Rotax 912 engine option, oil temperature and oil pressure are included. |
Construction | Aluminum airframe, fiberglass fairings, presewn Dacron wing. Made in France; distributed in the U.S. by U.S.-owned company. |
Design
Cosmetic appearance, structural integrity, achievement of design goals, effectiveness of aerodynamics, ergonomics.
Pros - Beautifully finished trike from one of the oldest and largest trike builders in Europe. Cosmos uses La Mouette wing; since this company builds hang gliders, good handling is part of the package. With the Rotax 912 or 912S engine and optional equipment as tested, this is a very deluxe trike.
Cons - Equipped as tested, Phase III with 4-stroke engine is costly (though generally less than 3-axis aircraft). Trikes still aren't the right aircraft for the masses.
Systems
Subsystems available to pilot such as: Flaps; Fuel sources; Electric start; In-air restart; Brakes; Engine controls; Navigations; Radio; (items covered may be optional).
Pros - Trikes used to be simple machines; now an electric starter goes hand-in-glove with 4-stroke engines. Gas-piston lift system helps erect the Phase III. Very useful (South African) SkyDat electronic instrument installed in a beautifully designed pod. Three-wheel brakes were highly effective.
Cons - Cosmos still does not offer in-flight trim (as other brands do). Without an electronic gauge, remaining fuel cannot be viewed in flight. Little space available for a radio or GPS. No flaps to aid approaches. No other negatives.
Cockpit/Cabin
Instrumentation; Ergonomics of controls; Creature comforts; (items covered may be optional).
Pros - Nosewheel fender keeps debris off the occupants on sand or dirt runways. Very comfortable seats, well padded for longer flights. Trike entry is about as easy as it gets. Hand and foot throttle plus choke controls are close to reach. Smooth running 4-stroke imparts little vibration to occupants.
Cons - No trike fairing on an aircraft as deluxe and costly as this seems odd (an optional one can be added). The Phase III is speedy enough that you'll get quite a windblast in either seat. Hard to see any instruments from the rear seat. No shoulder belts provided. No rear seat steering was installed (available as option).
Ground Handling
Taxi visibility; Steering; Turn radius; Shock absorption; Stance/Stability; Braking.
Pros - LING PROS - Three-wheel brakes were exceptionally potent, as good as any light aircraft I've flown. Higher profile tires made the Phase III ride well even on rough terrain. Suspension at all wheels further softens bumps. Trikes maneuver easily on a crowded ramp. Precise ground steering (push right/go left). Great visibility.
Cons - Push right/go left steering remains foreign for many American pilots (though it remains analogous to skiing or bicycle riding). Considerable muscle is needed to hold the wing in stronger winds; checkout pilot Jeff Reynolds says he prefers the Top 12.9 wing (much smaller than tested wing).
Takeoff/Landing
Qualities; Efficiency; Ease; Comparative values.
Pros - Trike takeoffs are easy and the Phase III continues this theme. Also sets down easily; very intuitive round-out. Suspension on all three wheels eases most poor landings. Good visibility during most takeoff and landing operations. Potent climb rate with 100-hp Rotax 912S and larger Top 14.9 wing.
Cons - Trikes leave the ground abruptly, mystifying those without trike experience. Crosswinds offer significant challenges to 3-axis pilots. The Phase III offers no flaps and cannot slip to a landing (you should practice S-turns to lose altitude more rapidly).
Control
Quality and quantity for: Coordination; Authority; Pressures; Response; and Coupling.
Pros - Cosmos has long offered wings with some of the best handling among trikes I've flown; the La Mouette Top 12.9 continues this tradition. Good steep turns were easy to achieve. No adverse yaw. Trikes coordinate easily. The Phase III with the Rotax 912S handled better than expected for a heavy trike; angled engine mount helps.
Cons - Precision turns are still tough in trikes; they require practice and "finesse." With the heavy 912S engine and larger Top 14.9 wing, the Phase III was relatively heavy on the controls unlike most Cosmos trikes (Jeff Reynolds confirms it is much better with the Top 12.9 wing).
Performance
Climb; Glide; Sink; Cruise/stall/max speeds; Endurance; Range; Maneuverability.
Pros - Cosmos and the Top wings are good performers. With the Top 12.9 wing, reported speeds can hit 100 mph with cruise at 80 mph (though these speeds exceed speed limits listed in FAR Part 103). Glide performance and sink rate both seem strong as expected since the wings come from a hang glider producer.
Cons - The Top 14.9 wing, when combined with the 100-hp Rotax 912S engine, offers thrilling climb rates, however, faster speeds require the smaller 12.9 wing (not tested for this report). The lack of a trimmer device prevents high-speed cruising without arm fatigue.
Stability
Stall recovery and characteristics; Dampening; Spiral stability; Adverse yaw qualities.
Pros - Highly stable flying platform. Stalls are very predictable and unthreatening. Throttle response and push/pull-and-release tests went well, showing normal characteristics. Almost no adverse yaw to counter. Roll stability was quite good in this heavier trike with its large wing.
Cons - Trikes respond differently when power is added - carriage moves forward before the wing - which bothers some 3-axis pilots (though it is not a stability problem). Lap belts simply aren't enough if a flight is upset and reflect poorly on an otherwise very well built aircraft.
Overall
Addresses the questions: "Will a buyer get what he/she expects to buy, and did the designer/builder achieve the chosen goal?"
Pros - Cosmos trikes are built with top quality components and this Phase III is the best I've seen yet. Fully built aircraft with beautiful hardware. Experienced and established company with sales all over the world. Four-stroke powerplant will appeal to many ultralight buyers.
Cons - To get the Phase III's level of quality and components, you must pay dearly, some $25,000 for the base aircraft (which includes the 80-hp Rotax 912 4-stroke engine). Built in France and sold by Personal Flight in the USA, Cosmos prices are competitive but currency fluctuations can affect the final price.
One of the first trikes I flew was a Cosmos, way back in 1984. It was a trendsetter then and was one stoutly built trike capable of real functions. The reason I flew and owned a Cosmos in those early ultralight days was due to its capability as a tug for hang gliders. I’ve been involved with hang gliding for many more years than powered ultralights so when the two dovetailed in the Cosmos Tug, I was pleased to the point of purchase. Maybe you’ll also be so moved. Today’s Cosmos Phase III trike is vastly better than that ’84 model. But it retains the brand familiarity (albeit with different ownership) and functionality while increasing the state of the art to a highly refined point. In the 18 years since that first Cosmos experience, I’ve flown all Cosmos entries except the Echo. This new Phase III appeared in many ways to be the French company’s finest work.
Cosmos Samba
Seating | Single-seat |
Empty weight | 210 pounds |
Gross weight | 410 pounds |
Wingspan | 32 feet |
Wing area | 154 square feet |
Wing loading | 2.7 pounds/sq ft |
Wing | Trike |
Length | 6 feet |
Height | 6 feet |
Fuel Capacity | 2.6 gallons |
Kit type | Fully-assembled |
Build time | NA |
Standard engine | Zenoah G25B-1 |
Power | 22 hp at 6,600 rpm |
Power loading | 18.6 pounds/hp |
Cruise speed | 45 mph |
Never exceed speed | 55 mph |
Rate of climb at gross | 600 fpm |
Takeoff distance at gross | 200 feet |
Landing distance at gross | 200 feet |
Standard Features | Topless M hang glider wing, weight-shift control, steerable nosewheel (push left, go right), foot-operated nosewheel brake, hand throttle, seat belt. British hang glider wing certification. |
Options | Electric start. |
Construction | Aluminum tubing airframe, composite trike wing crossbar, Dacron® polyester sailcloth. Made in France. |
Design
Cosmetic appearance, structural integrity, achievement of design goals, effectiveness of aerodynamics, ergonomics.
Pros - Trike carriage is true minimalist configuration (with enough weight allowance to add a few select accessories if you insist). No kingpost and upper rigging lends a modern and racy look. Wing has been through British certification as a hang glider. Single-seat trikes are rarer, but offer pleasant differences from cost to performance; Samba is a great combination of powered trike and hang glider.
Cons - Design hadn't been developed for years and had to play catch-up as the trike experienced newfound favor. Several significant improvements needed at time of test flight have reportedly been addressed at the factory.
Systems
Subsystems available to pilot such as: Flaps; Fuel sources; Electric start; In-air restart; Brakes; Engine controls; Navigations; Radio; (items covered may be optional).
Pros - Simple is what the Samba is about, so this category deserves a "Systems? What systems?" response. However, Cosmos has since added a hand throttle, nosewheel brake and even an electric starter. As such, the Samba - which should still make Part 103 weight easily - is well-loaded for systems. Brake is foot-operated, as usual on trikes. Samba should use hang glider instruments which mount to the control bar.
Cons - Overall, the Samba is not the work of hardware art that the bigger Cosmos trikes are. It's supposed to be simple and it is. Adding the features recently made available also bids up the cost, perhaps unnecessarily. Adding conventional instruments will require inventing the mount, and a radio must be hand-held or control bar-mounted.
Cockpit/Cabin
Instrumentation; Ergonomics of controls; Creature comforts; (items covered may be optional).
Pros - Entry gets no easier than this. Seat has potential to be very comfortable (once seat bolts were reversed). If you use control bar instruments, they are quite readable and easily reached. Lower speed range of Samba/Topless means a windscreen is hardly necessary.
Cons - Easy as entry is, the seat is low enough that older pilots could struggle a bit to rise from it. A lap belt is insufficient and shoulder or 4-point belts are advised. No cargo area (though some side bags might be added).
Ground Handling
Taxi visibility; Steering; Turn radius; Shock absorption; Stance/Stability; Braking.
Pros - The Samba is so light (only about 200 pounds empty) that ground maneuvering is a breeze. All trikes have some flexibility in ground maneuvering as you can lift a wing without changing direction. Nosewheel is quite responsive even though small. A nosewheel brake has been added, Cosmos reports.
Cons - No question about it: "wrong-way steering" (push left, go right) is nonintuitive (but standard on most trikes). Until you develop the instinct for it, the reversed quality can be unnerving. Winds can more easily upset the very light Samba and its high-performance wing. Ground clearance is less than larger Cosmos trikes. Suspension is limited to air in the tires and flex in the system.
Takeoff/Landing
Qualities; Efficiency; Ease; Comparative values.
Pros - "Point your toe and off you go" using the foot throttle. Takeoff is generally easy in trikes, and this lightweight single-seater is no different. Only the engine's small size limits the sensation at liftoff. Climb was an adequate 600 fpm. Landings are equally straightforward with terrific visibility. Slow speeds reduce need for slips or flaps (neither of which apply to Samba operation).
Cons - A small single-banger engine won't help you leap from rough runways (though bush flying isn't why it was designed). Like all trikes, Samba is limited in crosswind capability, although practice will give more latitude. No control surfaces to help steepen your approach if needed.
Control
Quality and quantity for: Coordination; Authority; Pressures; Response; and Coupling.
Pros - Light, fast, responsive and intuitive - not much need be added to this statement. Weight-shift or not, this Samba and Topless combination was a delight if you want light controls. Samba/Topless is also the first trike I felt I could dive authoritatively. Category rates an "Excellent" in my logbook.
Cons - Great handling or not, Samba still uses weight-shift, and some pilots have a mental block about using it. Like all high-performance hang gliders, the Topless has anhedral (downward-angled wings), which makes it modestly roll unstable; your weight easily overcomes this, but some "high siding" of the control bar is needed while in steeper banks.
Performance
Climb; Glide; Sink; Cruise/stall/max speeds; Endurance; Range; Maneuverability.
Pros - For what this machine is - a powered hang glider of the late '90s - it has superb performance. The Topless wing is state-of-the-art in hang gliding. With stall in the very low 20s and speed to 55 mph, Topless offers a respectable speed range. A climb of 600 fpm on only 22 horses is mighty efficient. Very strong glide ratio.
Cons - Even with great performance, this still isn't a cross-country cruiser (under power, that is). You're out in the wind, so more speed is less comfortable. Endurance isn't long with only 2 gallons of fuel (factory increasing this to 2.6, a little better). No other negatives.
Stability
Stall recovery and characteristics; Dampening; Spiral stability; Adverse yaw qualities.
Pros - Stalls are straightforward and not threatening, although they are less docile because the wing is considered a high-performance design. Power response is normal (more power produces nose-up). Longitudinal stability appeared conventional. Steep turns were simple and easily controlled (essential for a soaring machine). Adverse yaw isn't much of an issue on trikes.
Cons - Lap belts are definitely not enough in case of violent upset. As always, I wish Samba had been fitted with a ballistic parachute. For this reason, I did not attempt spins. No other negatives.
Overall
Addresses the questions: "Will a buyer get what he/she expects to buy, and did the designer/builder achieve the chosen goal?"
Pros - For only $10,995 ready-to-fly, Samba is a good value if you want this type of aircraft. Performance and handling appear very well-suited toward those with weight-shift soaring in mind. Well-known company, one of the world's largest trike builders. Breakdown to car top and trunk is possible (certainly with a little pickup truck).
Cons - Not really a beginner's trike. Not a cross-country cruiser.
You may know pilots like this. Heck, you might be one of these folks. Large numbers of them help manufacturers get trick new hardware on the market. Their willingness to try fresh concepts and their enthusiasm for all things new make purists an essential part of flying. One type of flying purist is the sort who prefers to stick with a FAR Part 103 ultralight. The genre helps define ultralights in general – we fly them because we like them, not because we’re hoping to grow up and become an airline pilot someday. Purists prefer the simple honesty of Part 103 flight. Slow-flying ultralights allow flight closer to fields and trees and landmarks. Amazingly short takeoff rolls and uneventful stalls make these basic machines easy to enjoy and give them versatility as to the size airstrip required. Low cost and operating expense help convince even more pilots. So, if all these things are good, why not make them the best they can be – the slowest flight, the shortest takeoff, the lowest cost?