Weedhopper of Utah INC.
1148 Century Drive
P.O. Box 2253
Ogden, UT 84404
(801) 621 3941
(they are no longer located there)

This company produced the first engine specifically designed for ultralight aircraft.  Unlike most engines used on ultralights in 1982 that were designed for other purposes and adapted, the Chotia 460 gives large torque at low rpm.  It was designed for long life, reliability and ease of tuning.

Type:  Single Cylinder, air-cooled, direct drive, two stroke.

Cylinder:
          Bore:          88.00 mm (3.47 in.)
          Stroke:        75.00 mm (2.95 in.)
          Swept volume: 456 cc (27.85 cu in.)
          Schnurle-port design.
          4 bolt exhaust flange.

Connecting Rod:  Machined bar stock.
                 Needle bearings at both ends.

Crankshaft:  Three ball bearings.
             Reversible rotation.
             Direct drive.

Induction:   Impulse fuel pump.
             Bowl-type carburetor.
             Fuel-Oil ratio 50:1

Ignition:    Four D - sized flashlight batteries giving
             24 Hours operation before full-power misfire
             (Then giving 4 hours cruise available)
             Standard 14 mm spark plug (NGK B6ES)

Dimensions:  Length       305 mm (12.0 in.)
             Width        178 mm ( 7.0 in.)
             Height       406 mm (16.0 in.)
             Weight (DRY) 14.3 kg(31.5 lb.)

Performance Ratings (S/L):
             T-O          18.6 kW (25 HP) at 4700 rpm
             Continuos    14.9 kW (20 HP) at 3500 rpm