cara mencari pitch propller secara manual
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8/17/2019 Cara Mencari Pitch Propller Secara Manual
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Manual Procedure for Propeller Pitch Measurement
by Ramses Herrera
Based on a request from one of our clients in Ecuador, we elaborated a simple procedure to measure a propeller's pitch.
Necessary equipment to perform it:
• Protractor (angle measurement)
• Level
• Plumb Line (not necessary on small props)
• Square Set or Squadron (mm, in or ft)
•
Compass
Procedure :
Equipment
On a leveled surface, make a layout of: a center point, a circle it! a diameter equal to t!e larger propeller !ub diameter, and a circle it! an
appro"imate diameter t!at pass t!roug! t!e idest part of t!e blade to be measured#
Put t!e propeller it! t!e pitc! side up, and center it it! t!e larger diameter previously layout#
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8/17/2019 Cara Mencari Pitch Propller Secara Manual
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Leveled surfaceNecessary Layouts
$rom t!e diameter t!at pass t!roug! t!e idest part of t!e blade, measure t!e perpendicular !eig!ts from t!e surface to t!e points located on
bot! sides of t!e blade on t!e pitc! side, t!at ill serve to find t!e !eig!t differences beteen t!ese to points#
%n t!is procedure, layout on t!e surface and over t!e layout diameter , t!e to points t!at ill !elp us to define t!e pro&ected angle over t!esurface, !ic! ill be measured it! t!e protractor as s!on in t!e picture#
Measuning heights from the layout diameter,
and marking the proyected points
Measured Angle
$inally, it! t!e obtained data, t!e pitc! ill be determined it! t!e folloing formula:
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8/17/2019 Cara Mencari Pitch Propller Secara Manual
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