Text Size
Prop Diameter Pitch Cup Bore Comments
H-2 1.74 2.6 2.75 .187 For hydros with high reving 21 engines.
H-4 1.68 2.6 2.9 .187 Great 21 hydro prop.
H-5 1.78 2.7 2.9 .187 Good 21 hydro prop.
H-6 1.79 2.8 2.9 .187 For hydros with strong 21's. Replaces Octura 1450.
H-7 1.87 2.85 2.95 .187 Good 21 hydro prop.
H-10 1.825 3.0 3.5 .187 For 21 hydro with full modified high performance engine. HR/SAW
H-13 2.15 3.0 3.0 .187 Great prop for high reving 45 riggers. Replaces Octura 1457
H-16 2.28 3.0 3.3 .187 All around 45 hydro heat racing prop.
H-18 2.17 3.2 3.5 .187 Best Choice for most 45 riggers with strong engines.
H-22 2.36 3.2 3.4 .187 For high torque 45 engines
H-24 2.33 3.2 3.5 .250 Has 1/4 Bore and 7/16 hub. Good for low nitro 67 hydros. Excellent prop for 45 engines. 7/16 drive dog
H-26 2.5 3.4 3.9 .250 Great prop for 67 hydros.
H-29 2.33 3.9 4.2 .250 Fast prop for 67 hydros with high reving engines.
H-30 2.24 4.3 4.7 .187 Very fast prop for 67 hydros. Holds IMPBA SAW and oval records.
H-31 2.68 4.0 5.0 .250 Excellent 90 hydro heat race prop. Low lift type prop
H-32 2.44 4.3 4.7 .250 Very fast prop for 67, 80, and 67 twin engines.
H-38 2.47 4.1 4.5 .250 Excellent prop for 67 and 67 twin hydros.
H-45 2.56 4.4 7.0 .250 Great 90 and 90 twin hydro prop. Low lift and heat treated prop.
H-48 2.52 4.55 5.7 .250 Good 80 or 90 prop.
H-50 2.56 5.0 5.7 .250 Very fast 90 hydro prop, Heat treated.
S-15 1.95 3.3 4.0 .187 Good SAW Prop for 21 hydros. 26,000rpm=70mph 28000rpm=76mph 30000rpm=82mph
S-20 2.15 3.75 4.5 .187 40 hydro prop.
S-30 2.37 4.5 5.0 .250 Has 4 blades. Quick Acceleration for 90 hydros. Great for large gas hydros.
S-40 2.4 5.2 6.3 .250 Has 3 blades. Very fast prop for single and twin 90 hydro. Officially ran 95mph at Crosby, Texas. Holds IMPBA SAW record. Great for large scale gas hydros.

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