Performance



Canada's Favourite Advanced Ultralight

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This section details the Classic Challenger II Legacy, Deluxe and Premium.

Click here for the new Challenger Light Sport XL-65, XS-65 and XS-50.

The following figures apply to the Canadian Challenger II 503 Deluxe Package.
Performance of older airplanes and engines WILL NOT achieve these levels.

Challenger II
Performance
Long
Wing
Clip
Wing

Typical Challenger II 503 Deluxe Package on wheels
with 170 lb occupants in average sea level conditions.

Vne

This never exceed speed is very high for ultralight aircraft. 100 mph 120 mph

Top Level Speed

With a top speed of 96 mph and a stall of 24 mph, the long wing Challenger delivers an impressive high end without sacrificing friendly, low speed approaches and handling. A 4 to 1 speed range is unusually wide, few general aviation aircraft can exceed 2.8 to 1. 96 mph 100 mph

Cruise
Speed

Low drag tandem seating, an engine tucked out of the slipstream, and attention to streamlining result in an unusually high cruise speed. Few if any designs can deliver this speed with such an economical engine. 85 mph
(5800 rpm)

35 mph
(4000 rpm)
90 mph
(5800 rpm)

40 mph
(4000 rpm)

Stall
Speed
Flaperons
Extended

The Challenger's large wing area and low weight result in a very low speed and exceptionally gentle stall. This is key to short field performance and is an important safety feature. It also contributes to the long wing Challenger's unequalled soaring capability. 24/28
mph
(solo/dual)
32/37
mph
(solo/dual)

Rate
of
Climb

The rate of climb is very strong by any standard. This together with a climb speed in the low 40s means the plane goes forward quite slowly while going up quite quickly, resulting in a helicopter-like angle of climb! Getting out of short fields (and lakes) is a snap. 1,100 /
750
fpm
(solo/dual)
1,000 /
650
fpm
(solo/dual)

Service
Ceiling

Most people think of ultralights as only flying low, near the ground. The Challenger goes high too, up into oxygen country. The heated cabin takes the nip out of the thin air found at these exalted altitudes. 14,000 /
12,500
ft
(solo/dual)
14,000 /
12,500
ft
(solo/dual)

Glide
Ratio

The glide ratio of Challengers is excellent by powered aircraft standards. From 5000 feet you can glide 11 miles with the engine off! Key to the unique soaring capability of the long wing are the low drag tandem seating and low wing loading, which result in a low sink rate, plus the low stall speed, which permits very small diameter turns in the thermal's core. 11 to 1 9 to 1

Minimum
Sink

Engine off, the long wing Challenger drifts down at an unusually gentle rate, taking a full quarter hour to reach the ground from 5000 feet. Apart from aiding soaring, this low sink rate has obvious safety benefits. The clip wing sinks faster than the long wing but is still very gentle by General Aviation standards. 350/450
fpm
(solo/dual)
500/600
fpm
(solo/dual)

Takeoff
& Landing

The large wing and light weight together with the high power-to-weight ratio give great STOL performance. 75-200
ft
125-250
ft

Maximum
Crosswind

The crosswind capability of the Challenger actually equals or exceeds that of many General Aviation aircraft. As an example, the Cessna 172 has a crosswind capability of 17 mph. Puddlejumper amphibious floats have a steerable nose wheel which allows Challengers so equipped to retain their crosswind capabilities. 20 mph 30 mph

Fuel
Consumption

Few two-seat aircraft are as miserly on fuel. Challengers can use auto gas (87 octane), avgas (100LL) or marina gas (87-89 octane), which may be intermixed. Most owners prefer regular car gas to minimize costs. 2.0-4.5
USgph
2.0-4.5
USgph

Fuel
Economy

These figures assume no wind. YMMV - Your Mileage May Vary - depending on how heavy you are on the gas. 21-25
mpg
21-25
mpg

Endurance
no reserve
(10 / 17 USgal)

Endurance depends of course on how fast you want to cruise - low and slow for sightseeing or blistering along to get somewhere soon. Our Canadian Challenger's standard fuel tank is 10 US gallons. An optional tank holding 17 US gallons provides greater endurance. 2.2-5.0
/
3.8-8.5
hrs
2.2-5.0
/
3.8-8.5
hrs

Range
no wind
no reserve
(10 / 17 USgal)

Range varies with the size of your fuel tank, how fast you cruise, how much reserve you allocate for contingencies, and of course the wind. Non-stop flights of over 300 miles have been made but it's actually more fun to make intermediate pit stops and be greeted by groundlings as if you're a movie star in a Ferrari! 200
/
350
sm
200
/
350
sm

For the Challenger II 582 Premium Package takeoffs are 1/3 to 1/2 shorter, climb is 50 to 100% faster, and, although you can go faster, fuel consumption at any given speed is about 20% lower. (Yes, lower!)


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