Prop-It-Right Analysis Form Overview

1. Vessel Information Section:
This section collects detailed vessel data including manufacturer, model, year, intended use (pleasure, charters, excursion), hull type (planing), bottom design (open, tunnel, pocket), and hull material (fiberglass, wood, aluminum). It also gathers owner or company contact details and vessel dimensions such as overall length, loaded weight, waterline length, beam, draft, and expected top speed.

2. Engine Data Section:
Requires comprehensive engine details for current or new engines including manufacturer, model, year, maximum engine rating (brake horsepower at specified RPM), gear reduction ratio, fuel type (gas, diesel, other), and number of engines (single, twin, triple, other). It also requests actual performance data at full throttle such as engine RPM and vessel speed (in MPH or knots). For repower scenarios, new engine data must be provided, referencing current propeller and old engine data.

3. Current Propeller Data Section:
Captures propeller manufacturer, model/style, material (bronze, nibral, stainless steel), size (diameter x pitch), number of blades, rotation direction (viewed from behind the boat), maximum propeller diameter or shaft-to-hull distance, and shaft specifications (SAE or metric, size, left or right hand rotation).

4. Re-power Data (Old Engine Information):
Documents previous engine details similar to the current engine data section, including manufacturer, model, year, maximum rating, gear ratio, fuel type, number of engines, and old performance metrics at full throttle.

Critical Notes and Recommendations:
- Accurate propeller recommendations depend entirely on the completeness and accuracy of the provided data.
- All engine data fields must be completed to ensure valid analysis.
- The form supports evaluation for new construction, repower, or general evaluation purposes.

Summary:
This technical form is designed to systematically collect all relevant vessel, engine, and propeller data necessary for precise propeller performance analysis and recommendations. It emphasizes detailed input for both current and old equipment to facilitate repower assessments and optimize vessel performance. The structured approach ensures clarity and completeness, which are critical for accurate propeller selection and evaluation.