• Limited Warranty (see your dealer for details)
   
• Spring loaded, steerable Nose Wheel
   
• 4 position flaps
   
• State-of-the-art landing gear suspension
   
• Virtually vibration-free engine mount
   
• Lowest cockpit noise level of all ultralights tested
   
• 72 mph cruise
   
• Tapered wing
   
• Short take-off & landing
   
• Airspeed indicator
   
• 15 minute set-up and breakdown
   
• Adjustable pilot seat
   
• Removable 5 gallon fuel tank
   
• Extraordinary visibility
   
• Delivered in easy-to-assemble kit (dealer assembly service available at participating dealers)
   
• Easy maintenance and repair
   
• Wide range of options
   

NOTE: All specifications are based on manufacturer's calculations.
All performance figures are based on standard day, standard atmosphere, at sea level and 175 lb. pilot weight,
unless otherwise noted.

Flight training required.

Specifications subject to change without notice.
The empty weight is shown with allowance made for pilot/vehicle recovery system deducted.
The empty weight for all models is approximate due to a 4% MIL SPEC tolerance on materials.

   AIRFRAME              447
      Length........................................................237 in.
      Height..........................................................78 in.
      Wingspan......................................................30 ft
      Wing area................................................146 sq ft
      Wing loading..........................................3.9 lb/sq ft
      Power loading........................................14.25 lb/hp
      Seats................................................................1
      Minimum flight crew..............................................1

   WEIGHTS:
      Max takeoff weight....................................570 lbs
      Empty weight...........................................276 lbs
      Useful load...............................................294 lbs
      Payload w/full fuel.....................................264 lbs

   PERFORMANCE:
      Takeoff distance, ground roll............................75 ft
      Takeoff distance, 50 ft obstacle......................215 ft
      Rate of climb............................................1000 fpm
      Max level speed, sea level.............................61 mph
      Landing distance, 50 ft obstacle......................350 ft
      Landing distance, ground roll...........................100 ft
      Glide Ratio.......................................................7:1
      Minimum sink rate.......................................450 fpm

   CRUISE PERFORMANCE CHART:
      At 55% power (rpm/mph).............................5300/51
      At 65% power (rpm/mph).............................5600/55
      At 75% power (rpm/mph).............................5900/58
      At 100% power (rpm/mph)............................6500/61

   FUEL FLOW:
      At 55% power (gpm/mi)..................................3.0/85
      At 65% power (gpm/mi)..................................3.5/78
      At 75% power (gpm/mi)..................................4.0/72
      At 100% power (gpm/mi)................................4.5/67

   AIRSPEEDS:
      V_x (Best angle of climb).................................32 mph
      V_y (Best rate of climb)...................................41 mph
      V_a (Design maneuvering)................................61 mph
      V_ne (Never exceed).......................................74 mph
      V_s1 (Stall, power off).....................................29 mph
      V_s0 (Stall, flaps down, power off).....................27 mph
      Landing approach speed .................................40 mph

   AIRFRAME                             503
      Length..........................................................238 in
      Height............................................................78 in
      Wingspan........................................................30 ft
      Wing area..................................................146 sq ft
      Wing loading............................................3.9 lb/sq ft
      Power loading............................................11.4 lb/hp
      Seats..................................................................1
      Minimum flight crew................................................1

   WEIGHTS:
      Max takeoff weight........................................570 lbs
      Empty weight...............................................306 lbs
      Useful load...................................................264 lbs
      Payload w/full fuel.........................................234 lbs

   PERFORMANCE:
      Takeoff distance, ground roll..............................65 ft
      Takeoff distance, 50 ft obstacle........................169 ft
      Rate of climb.............................................1450 fpm
      Max level speed, sea level..............................78 mph
      Landing distance, 50 ft obstacle.......................350 ft
      Landing distance, ground roll............................100 ft
      Glide Ratio.....................................................7.5:1
      Minimum sink rate........................................450 fpm

   CRUISE PERFORMANCE CHART:
      At 55% power (rpm/mph)..............................5300/64
      At 65% power (rpm/mph)..............................5600/68
      At 75% power (rpm/mph)..............................5900/72
      At 100% power (rpm/mph)............................6500/78

   FUEL FLOW:
      At 55% power (gph/mi).................................3.67/87
      At 65% power (gph/mi).................................4.33/79
      At 75% power (gph/mi).................................5.00/72
      At 100% power (gph/mi)...............................6.67/58

   AIRSPEEDS:
      V_x (Best angle of climb).................................32 mph
      V_y (Best rate of climb)...................................41 mph
      V_a (Design maneuvering)................................61 mph
      V_ne (Never exceed).......................................74 mph
      V_s1 (Stall, power off).....................................29 mph
      V_s0 (Stall, flaps down, power off).....................27 mph
      Landing approach speed.................................40 mph

All specifications are based on manufacturers calculations.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
This information is for reference only, please consult Quicksilver Mfg.® or one of it’s dealers for exact
and up to date specifications.