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DrillDown Icon Technical Info - Adhesives
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DrillDown Icon Technical Info - VMAX Electric Power Systems - General
DrillDown Icon Technical Info - VMAX Electric Power Systems - Products
DrillDown Icon Technical Info - VMAX Engines (Glow) - General
DrillDown Icon VMAX Engines - Documents
DrillDown Icon Engine Bearings - Replace or Not?
DrillDown Icon Engine Piston & Sleeve - Replace or Not?
DrillDown Icon After Run Oil - Why use it?
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DrillDown Icon Engine Carburetor - Low Speed Mixture - How to Set?
DrillDown Icon Engine Carburetor - Will not shut off.
DrillDown Icon Engine Cleaning - How to Do It?
DrillDown Icon Engine Dimensions (Sizes)
DrillDown Icon Engine Head Bolts - How Tight?
DrillDown Icon Engine - Inverted Operations
DrillDown Icon Engine OK on Ground - Poor in Flight
DrillDown Icon Engine Power - What is Appropriate?
DrillDown Icon Engine Prop Size?
DrillDown Icon Engine (ABC type) - Clyinder (Sleeve) Removal
DrillDown Icon Engine (ABC type) - Crankshaft Removal
DrillDown Icon Engine (ABC type) - Piston Removal
DrillDown Icon Engine (ABC type) is Tight at Top Dead Center - Is something wrong?
DrillDown Icon Engine Storage - Preparation
DrillDown Icon Engine Types and Power Considerations
DrillDown Icon Rust - How to Remove It?
DrillDown Icon Rust - Why is it Bad? How to Prevent It?
DrillDown Icon Technical Info - VMAX Engines (Glow) - Products
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Engine Prop Size - What is Appropriate?

Question: What size propeller should I use on my VMAX Engine?

Answer: Please see the documentation that came with your VMAX Engine. There is a propeller chart that will help you with choosing an appropriate propeller. This chart  is usually located towards the back of the manual, often it is on or near Page 8.

Please note that although prop size is related to the engine size, there are many other factors to consider. Altitude, temperature and aircraft type all are important factors that affect the prop selection. Air at higher altitudes and/or warmer temperatures is thinner and produces less thrust than lower altitude and/or colder air. Fuel type, nitro content and glow plug type can also play a role. A good idea is to talk to some of the flyers at your club. They will be familiar with the altitude and climate in your area and have a good idea of what props work best on what size engines.

We have included below, a manual from VMAX that has a propeller chart for use as a reference. This is a good guideline and works as a starting point for VMAX and most 2 stroke engines.  

VMAX 61PRO - Documentation
Please see the attached PDF documents related to this engine. File names indicate the nature of the document.
Article ID: 5397