POWER FIN Propellers

Wharton Airport
Hangar #31
882 Robert Vonderau Dr
Wharton, TX 77488

Ph: 979-532-5525
(Please note that our 800# is NOT available at our new Texas location)

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HIRTH ENGINE GUIDE 

PROPELLER RECOMMENDATION CHART

 Read The Key 
 
To understand the Tables below please note that "2/56 or 3/52" means you can choose a 2-blade Hub with a 56" length or a 3-blade Hub with a 52" length

 HIRTH 33:   28 HORSEPOWER  <>  6000 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6000)

'B' Blade
(#Blades/Dia)

C

'E' Blade
(#Blades/Dia)

F

1.8 Belt

3333

 

 

3/40

 

2.2 Belt

2727

 

 

3/44

 

2.5 Belt

2400

2/54

 

3/48

 

 

 HIRTH 2702:   40 HORSEPOWER  <>  5500 MAX RPM  

Reduction
RATIO

MAX PROP
RPM
(with Eng RPM: 5500)

'B' Blade
(#Blades/Dia)

C E

'F' Blade
 (#Blades/Dia)

2.16

2546

 

     

2.29

2401

2/62

      

2.59

2123

2/64
3/58

     

3.16

1740

3/62

   

2/68
3/62

3.65

1506

3/65

    2/70
3/66

 

 HIRTH F23:   50 HORSEPOWER  <>  6150 MAX RPM  

Reduction
RATIO

MAX PROP RPM
(with Eng RPM: 6150)

'B' Blade
(#Blades/Dia)

'C' Blade
(#Blades/Dia)

E

F

1.8 Belt

2555

2/60

3/57

 

 

2.2 Belt

2500

2/60

3/58

 

 

2.5 Belt

2200

2/63

 

 

 

 HIRTH 2703:   55 HORSEPOWER  <>  6200 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6200)

'B' Blade
(#Blades/Dia)

'C' Blade
(#Blades/Dia)

E

'F' Blade
(#Blades/Dia)

2.16

2870

2/58 

 

 

 

2.29

2707

2/60

 

 

 

2.59

2393

2/63
3/60

3/61

 

 

3.16

1962

3/65

 

 

2/70
3/68

3.65

1698

 

 

3/72

 

 HIRTH 2704 / 3202:   55 HORSEPOWER  <>  5500 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 5500)

'B' Blade
(#Blades/Dia)

'C' Blade
(#Blades/Dia)

E

'F' Blade
(#Blades/Dia)

2.16

2314

2/65
3/61

3/65 

 

2/67
3/62

2.29

2183

3/65

 

 

2/70
3/65

2.59

1930

3/65

 

2/74
3/68

3.16

1582

 

 

3/74

3.65

1369

 

 

 

HIRTH 3502:   60 HORSEPOWER  <>  6000 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6000)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.16

2777

 

 

2.29

2620

3/63
4/60

 

 

2/68

2.59

2316

3/65
4/62

 

 

3/66

3.16

1898

5/65

 

 

3/70
4/67

3.65

1643

 

 

3/74
4/70
5/67

 

HIRTH 2706 & 3203:   65 HORSEPOWER  <>  6200 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6200)

'B' Blade
(#Blades/Dia)

'C' Blade
(#Blades/Dia)

E

'F' Blade
(#Blades/Dia)

2.16

2870

2/63
3/58

  

 

2.29

2707

2/65
3/61

  

 

2/66

2.59

2393

3/64

3/64

 

2/70
3/65

3.16

1962

   

 

2/75
3/72
4/69

3.65

1698

   

 

3/74

 

HIRTH 3503:   70 HORSEPOWER  <>  6500 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6500)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.16

3009

 

 

2.29

2838

3/65
4/63

 

 

2/71

2.59

2509

4/65

 

 

3/69

3.16

2056

 

 

 

3/72
4/69

3.65

1780

 

 

 

4/72
5/69

 

HIRTH F30:   80 HORSEPOWER  <>  5500 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 5500)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.03

2709

3/64

 

 

2/68
3/63

2.25

2444

3/65

 

 

2/72
3/68

2.60

2115

 

 

3/72

2.96

1858

 

 

 

3/75
4/69

3.33

1651

 

 

 

5/71

 

HIRTH F30:   85 HORSEPOWER  <>  5500 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 5500)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.03

2709

3/65
4/62

 

 

2/69
3/64

2.25

2444

4/65

 

 

2/73
3/68

2.60

2115

5/65

 

 

3/73

2.96

1858

 

 

 

4/72

3.33

1651

 

 

 

5/72

 

HIRTH 3701:   100 HORSEPOWER  <>  6000 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6000)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.16

2777

4/65

 

 

3/68

2.29

2620

5/65

 

 

3/72
4/68

2.59

2316

 

 

3/75
4/70
5/66

3.16

1898

 

 

 

4/74
5/70

3.65

1643

 

 

 

5/74

 

HIRTH F30:   110 HORSEPOWER  <>  6200 MAX RPM  

Reduction
RATIO 

MAX PROP RPM
(with Eng RPM: 6200)

'B' Blade
(#Blades/Dia)

C

E

'F' Blade
(#Blades/Dia)

2.03

3054

4/64

 

 

3/66

2.25

2855

5/64

 

 

3/68

2.60

2384

 

 

3/74

2.96

2094

 

 

 

4/74

3.33

1861

 

 

 

5/74

 

 
 

POWERFIN Propellers  

Wharton Airport, Hangar #31
       882 Robert Vonderau Dr
Wharton, TX 77488

Phone 979-532-5525

E-MAIL US

HOME <> ORDER FORM

An Opening Letter to You <> 2010 Press Release

Applications <>  Features <> Selection Guide   

Pricing <>  Assembly Instructions  <> Weights 

F-A-Q's   <>  Maintenance  <>  Balancing

Request a Prop Recommendation Form

Dealer/Distributor/O.E.M. Information

Employment  <>  Contact US