Kiwi Prop Specifications

(June 2010)

Now we can support engines as small as 13 HP with our new smaller blades: 14" 14.5" and 15"

Type

Feathering 3 Blade, Left or Right hand rotation

Diameter (Nominal)

14"- 14.5"- 15"- 15.5" - 16" - 16.5" - 17" - 18.5"
" (Diameter at tips ~ 1/2" greater than nominal)

Pitch

18 to 24 degrees (Fixed blade propeller
Reverse always ~24 degrees

Boss / Casting

316 Stainless Steel ex Rod or Investment cast

Blades

Dupont Zytel Black ~40% glass

Nose Cone and Nut

DupontPETP White (Saildrive)

GF PP - Glass Filled 30% Polypropylene - Shafts

Spring and Cap Screws

Stainless Steel - 304 / 316

Blade Retaining Pins

Titanium

Shaft Diameters

SAE - 7/8" - 1" , 1- 1/8" , 1-1/4"

ISO - 25mm , 30mm

Saildrive SAE 16/32 Spline on 28 mm

Shaft Taper

SAE 1:16

ISO 1:10

Seals

PETP Boss or Neoprene V Seals (Blades)

Nut Thread

SAE - 5/8" 3/4" or 7/8" UNC for 1-1/4"

ISO M16 or M20 x 1.5

Saildrive M16 or M20 x 2

Keyway

SAE - 1/4" or 5/16" Parallel

ISO - 6x6 or 8x7mm Parallel

Maximum Power

< 55 hp @ > 1340 Shaft rpm

Minimum Power

> 15 hp @ < 1400 shaft rpm in ahead and < 1250 shaft rpm in reverse

Weight

~ 7.7 lb

~3.5 kg

K4 specifications - (Four bladed Kiwiprop)
Type: Feathering:	4 Blades - Left or Right Handed Rotation (NB: Rotation can be switched - Requires new blade set & Blade Carrier casting)
Diameter - Nominal "	16.50” 17” 17.50” 18” 19.50” 20.50” Diameter at the tips will be ~ ½” greater than nominal
Pitch Range - Degrees º	18 to 24 degrees – User Adjustable in Ahead .... Reverse always 24 degrees Rear blade face aligned with aft rear joint line = 24 ° ~ 1.5 Turns Out = 3° Decrease in Pitch
Boss / Castings:	316 Stainless Steel ex Rod Stock or Investment Cast
Blades:	DuPont Zytel™ HTN Black ~ 50 % Glass
Nose Cones:	Glass Reinforced Polypropylene - Black
Spring and Cap Screws:	Stainless Steel 304 / 316
Pitch Screws:	Stainless Steel 304 / 316
Blade Retaining Pins:	Titanium – ¼”
Shaft Diameters:	SAE 1:16 taper 1.250”, 1.375”, 1.500” ISO 1:10 taper 30 or 35 mm Saildrives SAE 16/32 17th Spline on 28 mm Blank bored for local machining to non standard tapers
Nut Threads:	SAE - 1¼” = ⅞”: 1-3/8” = 1”: 1-1/2” = 1-1/8” are all UNC ISO 30 - M20 x 1.5 Beneteau’s pre ~ 1992 are x 2.0 ISO 35 - M24 x 2.0 Saildrives - ALL M16 x 2 mm except Yanmar SD40 & SD50’s with M20 x 2.0 mm
Keyway:	SAE 1¼” = 5/16” 1-3/8” = 5/16” 1-1/2” = 3/8” - Parallel ISO 30 mm 8 x 7 ISO 35 mm 10 x 8 - Parallel
Power Ratings: Ranges:	< ~ 100 hp @ > ~1300 shaft rpm or > ~ 50 hp @ < ~1300 shaft rpm
Weight:	~ 7.5 kg ( Depends upon blades & internal dimensions )