Sprint, Quicksilver Sprint Ultralight Aircraft, Air Tech Inc., Ultralight Buyers Guide 2022.

Sprint, Quicksilver Sprint Ultralight Aircraft, Air Tech Inc., Ultralight Buyers Guide 2022.
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The MX Sprint has an extremely fast roll response and handles crosswinds easily with its conventional three-axis controls. Yet it retains the docile and predictable slow flight characteristics that made the original MX famous. With its combination of great flying performance, Quicksilver’s world-renowned quality and a six-month written limited warranty, the MX Sprint sells itself!
But the performance and handling are only part of the picture. It’s proven design and complete factory and dealer support help to make your flying as enjoyable as possible. And Quicksilvers are the easiest kits on the market to assemble. Only basic tools and a few weekends, and you’re ready to fly!
POWERPLANT
PowerPlant 1 Rotax Model 447
Twin Cylinder, Two-Cycle
436.5 cc, 40 hp @ 6500 rpm
Recommended TBO 300 hr
Propeller 66 in x 34 in
Length 18 ft 1 in
Height 8 ft 10 in
Wingspan 28 ft 0 in
Wing area 156 sq ft
Wing loading 3.36 lb/sq ft
Power loading 13.12 lb.hp
Seats 1
Empty Weight 250 lbs
Useful load 275 lbs
Payload w/full fuel. 245 lbs
Max takeoff weight 525 lbs
Fuel capacity 5 U.S. gal
PERFORMANCE
Takeoff distance, ground roll 65 ft
Takeoff distance, 50 ft obstacle 200 ft
Rate of climb 900 ft/min
Max operating altitude 14,000 ft
Landing distance 50 ft obstacle (with brake) 200 ft
Landing distance ground roll (with brake) 60 ft
CRUISE PERFORMANCE CHART
(Speed/Range at sea level with 4.8 gal. usable fuel)
At 55% power(5300 rpm) 44 mph/84 mi
At 65% power(5600 rpm) 47 mph/84 mi
At 75% power(5900 rpm) 50 mph/80 mi
At 100% power(6500 rpm) 54 mph/52 mi
FUEL FLOW
At 55% power 2.5 gph
At 65% power 2.7 gph
At 75% power 3.0 gph
At 100% power 4.5 gph
LIMITING AND RECOMMENDED SPEEDS
Vx (Best angle of climb) 33 mph
Vy (Best rate of climb) 36 mph
Va (Design maneuvering) 48 mph
Vne (Never exceed). 65 mph
Vs (Stall, power off) 24 mph
Landing approach speed (1.3 Vs) 31 mph
Features
Rotax 447 Engine
Conventional 3-Axis Controls
66" Propeller for More Performance With Less Noise
Flexible Driveshaft Coupler for Reduced Vibration
Tapered Stabilizer
Tubular-Braced Tail
Triangulated Kingpost Assembly
Partial Double Surface Wings
Extra Ribs for Firm Airfoil
Excellent Crosswind Capability
Short Takeoff
Very Fast Control Response
Quicksilver's Famous Quality
Easy-to-Assemble Kit (Average 30 to 50) Hours)
6-Month Written Warranty
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[@genebollinger1838]

I have about 500 hour in a Quicksilver weight shift. Been to 12,500 feet.

[@kjlahti782]

Nice, nice job you did rebuilding it!

[@Enlightenment_2025]

Their packaging is top notch. Surprisingly, nobody copied it. Did they?

[@travisstearns8250]

I like it

[@donshields4470]

I weigh 250...will it haul me?

[@ultralightnews]

Yes.

[@W4ABN]

Same here. Been interested in ultralights since I was much younger, and lighter.