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    Propellor Comparison Chart

    Uploaded by

    Guido Poppe
    The document summarizes the test results of 12 propeller models. It provides details on each model such as price, diameter, pitch, weight, material, maximum engine revolutions per minute, speed and range at different engine speeds, fuel consumption, slippage, traction and other performance metrics. It then rates each propeller on factors like consumption, manoeuvrability, noise and vibration, ease of assembly, quality to price ratio, and overall comments. The Volvo Penta model received the highest ratings overall while the France Hélices and Bruntons models also performed well according to the assessment.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Propellor Comparison Chart

    Uploaded by

    Guido Poppe
    61 views3 pages
    The document summarizes the test results of 12 propeller models. It provides details on each model such as price, diameter, pitch, weight, material, maximum engine revolutions per minute, speed and range at different engine speeds, fuel consumption, slippage, traction and other performance metrics. It then rates each propeller on factors like consumption, manoeuvrability, noise and vibration, ease of assembly, quality to price ratio, and overall comments. The Volvo Penta model received the highest ratings overall while the France Hélices and Bruntons models also performed well according to the assessment.

    Original Description:

    Propellor comparison chart for sailyachts

    Original Title

    Propellor comparison chart

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    The document summarizes the test results of 12 propeller models. It provides details on each model such as price, diameter, pitch, weight, material, maximum engine revolutions per minute, speed and range at different engine speeds, fuel consumption, slippage, traction and other performance metrics. It then rates each propeller on factors like consumption, manoeuvrability, noise and vibration, ease of assembly, quality to price ratio, and overall comments. The Volvo Penta model received the highest ratings overall while the France Hélices and Bruntons models also performed well according to the assessment.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    61 views3 pages

    Propellor Comparison Chart

    Uploaded by

    Guido Poppe
    The document summarizes the test results of 12 propeller models. It provides details on each model such as price, diameter, pitch, weight, material, maximum engine revolutions per minute, speed and range at different engine speeds, fuel consumption, slippage, traction and other performance metrics. It then rates each propeller on factors like consumption, manoeuvrability, noise and vibration, ease of assembly, quality to price ratio, and overall comments. The Volvo Penta model received the highest ratings overall while the France Hélices and Bruntons models also performed well according to the assessment.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 3

    OUR TWELVE SCREWS IN FIGURES : TESTERS’ ASSESSMENTS AND THE FINAL ORDER OF MERIT!

    Make/model Nakashima 3 Radice France Hélices Flexofold Volvo Penta Bruntons Gori Kiwiprop SPW J Prop Maxprop Ewol
    bladed fixed Racing Autoprop

    2-bladed 2-bladed folding 3-bladed folding 3-bladed folding 3-bladed folding 3-bladed folding 3-bladed 3-bladed 3-bladed 3-bladed 3-bladed
    folding feathering feathering feathering feathering feathering
    Price inc. tax € 400,00 € 601,00 € 1.115,00 € 1.712,00 € 1.988,00 € 2.153,00 € 2.697,00 € 1.398,00 € 2.063,00 € 2.394,00 € 2.628,00 € 2.990,00
    Diameter 16 in. 17 in. 16 in 16 in. 16 in. 16.3 in 16.5 in 16 in 16 in 16 in 17 in 16 in
    Pitch 10 in. 12 in. 12 in. 11 in. 11 in. Variable 11 in 11.55 in 10.5 in 10 in 9 in 12.1 in
    Weight 4,254 g 5,000 g 4,390 g 8,845 g 7,140 g 7.115 g 7,395 g 3,625 g 6,220 g 7,525 g 5,460 g 8,270 g
    Material Nibral Nibral Nibral Nibral Nibral Nibral/superston Nibral Stainless/comp Nibral Nibral Nibral stainless steel
    osite
    Max. engine revs. 3,302 rpm 3,018 rpm (2) 3,020 rpm 3140 rpm 3,596 rpm 3,212 rpm 3,427/ 3,260 rpm 3,525 rpm 3,580 rpm 3,480 rpm 3,340 rpm
    -2 -2 2,757 rpm (3)

    Speed at 2,200 rpm 6 kts 6.3 kts 6.45 kts 6.4 kts 5.7 kts 6.65 kts 5.8/6.65 kts 5.75 kts 5.15 kts 5.35 kts 5.5 kts 5.75 kts
    Speed at 1500rpm 4.35 kts 4.5 kts 4.9 kts 4.4 kts 4 kts 5.1 kts 4.15/4.6 kts 4.2 kts 3.3 kts 3.75 kts 3.85 kts 4.1 kts
    Range at 2,200 rpm 3.63 miles/l 3.15 miles/l 2.95 miles/l 3.36 miles/l 3.98 miles/l 3.21 miles/l 3.53/4.17 3.32 miles/l 3.73 miles/l 3,84 miles/l 3.57 miles/l 3.46 miles/l
    miles/l
    Range at 1,500 rpm 6.40 miles/l 6.08 miles/l 5.9 miles/l 6.11 miles/l 6.35 miles/l 5.8 miles/l 5.53/5.9 6.08 miles/l 6.36 miles/l 5.95 miles/l 6.2 miles/l 6.21 miles/l
    miles/l
    Consumption 1.65 l/hr 1.72 l/hr 1.57 l/hr 1.57 l/hr 1.73 l/hr 1.40 l/hr 1.57/1.84 l/hr 2.03 l/hr 2.09 l/hr 2 l/hr 2.2 l/hr 1.88 l/hr
    At 6 knots
    Slippage at 6knts 22% 33% 26% 22% 34% -1 32%/ - (1) 35% 36% 33% 24% 40%
    Traction at 2,200 rpm 170 N 130 N 145 N 185 N 165N 80 N 165/220 N 150 N 110 N 105 N 150 N 130 N
    Traction at 293 N 245 N 195 N 290 N 280N 180 N 270 N 210 N 253 N 220 N 255 N 240 N
    3,000 rpm (2,800 rpm) (2,650 rpm)

    Reverse traction at 3,000 rpm 185 N 215 N 125 N 170N 205N 175 N 210 N 144 N 215 N 210 N 210 N 213 N
    Stopping distance at 5 knots 9m 9m 12.2 m 8m 9m 7.40 m 4m 7m 45.50 m 7.30 m 6.90 m 7m
    Acceleration 0 to 6 knots 13.4 secs 15 secs 16.3 secs 14 secs 12.8 secs 12.5 secs 14.3 secs 23 secs 15.4 secs 14 secs 16.2 secs 14 secs
    Consumption **** *** *** *** *** ***** **** *** ** **** ** ****
    Manoeuvrabilty **** ** * ** *** ** ** **** ***** **** *** ****
    Noise/Vibration **** * ** **** ***** ** ** *** **** *** ** ***
    Ease of assembly ***** *** *** *** *** **** **** **** *** **** * ****
    Pitch adjustment ** ** ** ***** *** * ****
    - - - - -
    Quality/price **** *** ** *** **** ***** *** ***** **** *** ** ***
    Comments Not expensive The cheapest Sometimes Not too Good aural Very good Strong pitch Be careful Very attractive Very simple Shows its Very nice
    and performs low-drag difficult to strong, but comfort and performance at effect but adjusting the price for a very fitting and age screw, but the
    well but high screw open when reasonable easy fitting cruising speed overdrive is a pitch blade by well-made adjustment compared price is a bit
    drag manoeuvring performance real plus blade screw with the steep
    competition

    * : fair ** : average *** : good **** : very good ***** : excellent


    (1) As the pitch varies constantly, the slippage cannot be calculated (2): below 3.200 rpm max. revs. the pitch is really too strong for the engine. (3) the second figure corresponds to the overdrive position

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