Hiller Aircraft

Comparison of Light Turbine Helicopters

HILLER UH-12ET3

HILLER UH-12ET4

SCHWEIZER 330

ENSTROM 480

BELL 206 B

Seats

3

4

3/4

5

5

Engine

Allison 250-C20

Allison 250-C20

Allison 250-C20

Allison 250-C20

Allison 250-C20

Empty Weight

1,650

1,750

1,140

1,675

1,598

Useful Load

1,450

1,350

1,120

1,175

1,602

Cruise Speed

73

73

100

122

116

Range

305

305

 

475

311

Cabin Width

59 in.

59 in.

67.8 in.

70.44 in.

46.8 in.

Compatibility with Piston Models

High

High

Slight

Slight

None

PISTON POWERED HELICOPTER SPECIFICATIONS

HILLER UH-12E3

HILLER UH12-E4

ROBINSON R22/B11

ROBINSON R44

SCHWEIZER 300CB

SCHEWEIZER 300C

ENSTROM F28F

ENSTROM 280FX

Seats

3

4

2

4

2

3

3

3

Engine Power (Hp)

305

305

131

225/205

180

190

225

225

Turbo Charged?

No

No

No

No

No

No

Yes

Yes

Empty Weight (Lbs.)

1759

1860

845

1,420

1,088

1,100

1,570

1,585

Useful Load (Lbs.)

1341

1240

516

980

662

950

1,030

1,015

Cruise Speed (MPH)

73

73

96

110

85

86

102

107

Range (Int. Fuel-Miles)

267

267

209

224

276

232

263

300

Diameter (Ft.)

35.4

35.4

25.2

33.0

26.8

26.8

32.0

32.0

Disc Loading (Lb./Sq. Ft)

3.147

3.147

2.744

2.81

3.100

3.631

3.234

3.234

Blade Loading (Lb./Sq. Ft)

80.83

80.83

94.5

87.7

78.6

92.1

66.7

66.7

Inertia (Slug Ft. Squared)

360

360

105

250

140

140

416

416

Cabin Width

59 in.

59 in.

45

50

57

51

61

59

Correlated Throttle

Yes

Yes

Yes

Yes

No

No

Yes

Yes

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