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GMS 2000 Model Engines

 

 

 

      GMS .25 / .32 ABC

 

 

 

GMS .25 ABC  w/Muffler

 

Displacement:             0.25cu in / 4.07cc

Bore:                           0.709 in / 18 mm

Stroke:                        0.630 in / 16mm

RPM range:                2,400 – 19,000

Output:                       0.85 HP @ 18,000 RPM

Weight:                      10.93 oz / 310 g

 

Recommended prop sizes:

     Sport                           9 X 4

     Racing                        8 X 5-6

     Scale                           9 X 5

Features:

     True ABC technology, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R644-00

 

 

GMS .32 ABC  w/Muffler

 

Displacement:             0.32cu in / 5.20cc

Bore:                           0.780 in / 19.8 mm

Stroke:                        0.669 in / 17mm

RPM range:                2,000 – 20,000

Output:                       1.20 HP @ 18,000 RPM

Weight:                      10.76 oz / 305 g

 

Recommended prop sizes:

     Sport                           9 X 6

     Racing                        9 X 5

     Scale                          10 X 5

Features:

     True ABC technology, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R665-90

 

     GMS .40 / .47 ABC

 

GMS .40 ABC  w/Muffler

 

Displacement:             0.40cu in / 6.47cc

Bore:                           0.801 in / 20.5 mm

Stroke:                        0.772 in / 19.6mm

RPM range:                2,000 – 16,000

Output:                      1.25 HP @ 15,000 RPM

Weight:                      16.93 oz / 480 g

 

 

Recommended prop sizes:

     Sport                          10 X 5-6

     Racing                        9 X 6

     Scale                           11 X 5

Features:

     True ABC technology, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R799-00

 

 

GMS .47 ABC  w/Muffler

 

Displacement:             0.47cu in / 7.72cc

Bore:                           0.882 in / 22.4 mm

Stroke:                        0.772 in / 19.6 mm

RPM range:                2,000 – 16,000

Output:                       1.47 HP @ 15,000 RPM

Weight:                      16.75 oz / 475 g

 

 

Recommended prop sizes:

     Sport                           10 X 7     11 X 6

     Racing                         9 X 6

     Scale                            11 X 6

Features:

     True ABC technology, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R883-00 

 

 

 

      GMS .61 / .76 Ring

 

GMS .61 Ring w/Muffler

 

Displacement:             0.61cu in / 9.97cc

Bore:                           0.937 in / 23.8 mm

Stroke:                        0.882 in / 22.4 mm

RPM range:                2,000 – 13,000

Output:                       2.00 HP @ 15,000 RPM

Weight:                      19.40 oz / 550 g

 

 

Recommended prop sizes:

     Sport                           11 X 8           

     Racing                        11 X 7

     Scale                           12 X 6

Features:

     Ringed piston, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R969-50

 

 

GMS .76 Ring  w/Muffler

 

Displacement:             0.76cu in / 12.4cc

Bore:                           1.047 in / 26.6 mm

Stroke:                        0.882 in / 22.4 mm

RPM range:                2,000 – 11,000

Output:                       2.5 HP @ 15,000 RPM

Weight:                      20.11 oz / 570 g

 

 

Recommended prop sizes:

     Sport                           12 X 6

     Racing                         11 X 8

     Scale                            13 X 6

Features:

     Ringed piston, Twin needle carburetor,

     Dual ball bearings, comes with muffler

Price: R1178-00

 

 

           GMS 1.20 Ring

 

 

GMS 1.20 Ring  

 

Displacement:             1.20 in / 19.9 cc

Bore:                          1.181 in / 30 mm

Stroke:                        1.110 in / 28.2 mm

RPM range:                1,800 – 14,000

Output:                       3.3 HP @ 13,000 RPM

Weight:                      26.46 oz / 750 g

 

 

Recommended prop sizes:

     Sport                           16 X 10

     Racing                        16 X 8

     Scale                           18 X 5-6

Features:

     Ringed piston, Twin needle carburetor,

     Dual ball bearings, comes with-out muffler

Price: R1790-00 

 

 

GMS Dimensions reference chart

 

 

 

GMS 25

GMS 32

GMS 40

GMS 47

GMS 61

GMS 76

GMS 120

A

38

38

44

44

52

52

60

B

15

15

17.5

17.5

25

25

30

C

77.7

77.7

87.3

87.3

103

103

110.5

D

45

45

51.5

51.5

61

61

70

E

74.2

76.8

87.3

87.3

101

101

120

F

55

55

61.8

61.8

73.5

73.5

77.5

G

30

30

35.7

35.7

43

43

50

H

47.5

47.5

53

53

61

61

62.5

J

59.2

61.8

71.2

71.2

79.5

79.5

95

S

UNF1/4

UNF1/4

UNF5/16

UNF5/16

UNF5/16

UNF5/16

UNF3/8