Ultra-Prop II - Shop by Engine

Name: Ultra-Prop II - Shop by Engine
Brand: Ultra-Prop
SKU: 202-66-0910-Rotax 447
Price: 575.0 USD
Availability: InStock

Regular price$575.00

The Ultra‑Prop II is the latest evolution of the trusted Ultra‑Prop line, originally launched in 1984 with over 18,000 units in service. Designed for ultralights, hovercraft, airboats, and similar applications, it delivers high durability, aerodynamic efficiency, and precise engineering.

Key Features

Superior Materials & Manufacturing
Each blade is made from carbon-fiber-reinforced thermoplastic and precisely injection-molded to stay within a tight 6‑gram weight tolerance. This consistency means you can replace blades without balancing or matching them.
Aerodynamically Advanced Design
The longer blades use an optimized airfoil, improved twist, and efficient planform design. The result is smoother airflow and improved overall performance.
Higher Power Capability
Available in sizes up to 66", the Ultra‑Prop II handles power levels over 100-HP—far beyond the limitations of earlier Ultra‑Prop models.
Tested to LSA Standards
The hub, pitch blocks, and blade retention system have been tested to meet Light Sport Aircraft standards for overspeed and load. Built for strength and reliability.
High Value, Competitive Price
Offers composite-level performance for less than many wood props on the market. An optional spinner kit is also available to improve both appearance and performance.

Why Choose Ultra‑Prop II?

Lightweight and durable composite blades
Easy blade replacement—no rebalancing required
Designed for high‑power engines and larger aircraft
Rigorously tested to industry standards
Better performance at a lower cost

Engine

Rotax 447

Rotax 503

Rotax 582

Rotax 912UL

Rotax 912ULS

Hirth F23

Hirth 2702

Hirth 2703

MZ 201

Kaw 440

HKS

Blades

Final Details

Redrive Ratio: 2.58:1, Blade Length: 66 in., Pitch: 9 or 10 deg.

Redrive Ratio: 2.58/2.62:1, Blade Length: 66 in., Pitch: 10 or 11 deg.

Redrive Ratio: 2.58/2.62:1, Blade Length: 66 in., Pitch: 8 or 9 deg.

Redrive Ratio: 2.27:1, Blade Length: 66 in., Pitch: 10 or 11 deg.

Redrive Ratio: 2.43:1, Blade Length: 66 in., Pitch: 12 or 13 deg.

Redrive Ratio: 2.43:1, Blade Length: 67 in., Pitch: 11 or 12 deg.

Redrive Ratio: 2.5:1, Blade Length: 66 in., Pitch: 10 or 11 deg.

Redrive Ratio: 2.3:1, Blade Length: 66 in., Pitch: 12 or 13 deg.

Redrive Ratio: 2.59:1, Blade Length: 66 in., Pitch: 10 or 11 deg.

Redrive Ratio: 2.58:1, Blade Length: 64 in., Pitch: 11 or 12 deg.

Redrive Ratio: 2.62:1, Blade Length: 62 in., Pitch: 11 or 12 deg.

Redrive Ratio: 2.08:1, Blade Length: 61 in., Pitch: 12 or 13 deg.

Redrive Ratio: 2.58:1, Blade Length: 60 in., Pitch: 10 or 11 deg.

Redrive Ratio: 2.6:1, Blade Length: 60 in., Pitch: 9 or 10 deg.

Redrive Ratio: 2.58:1, Blade Length: 66 in., Pitch: 10 or 11 deg.

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Hear it from them

★★★★★
Couldn't be happier with the service I received from this company.
Leslie M.
Toronto, ON

★★★★★
Really went out of their way to make me feel special as a customer, highly recommend!
Rachel F.
Los Angeles, CA

★★★★★
Fantastic fabrics, great fit and no issues going through the laundry either!
Sam R.
Brooklyn, NY

★★★★★
Arrived fast and beautifully boxed. They even let me model on their site :)
Sharon S.
New Orleans, LA

★★★★★
Couldn't be happier with the service I received from this company.
Matt C.
Montreal, QC

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Ultra-Prop II - Shop by Engine

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