ArticlesArticles Most Popular ArticlesMost Popular Articles Most Helpful ArticlesMost Helpful Articles Submit A QuestionSubmit A Question Login for PRIORITY RESPONSELogin for PRIORITY RESPONSE
RSS Feeds
DrillDown Icon Table of Contents
DrillDown Icon LIABILITY & COPYRIGHT
DrillDown Icon Site Information
DrillDown Icon * Support
DrillDown Icon Technical Info - Adhesives
DrillDown Icon Technical Info - Master Airscrew
DrillDown Icon Technical Info - POLYPRO
DrillDown Icon Technical Info - RC Flying - General
DrillDown Icon Technical Info - RC Flying Electric - General
DrillDown Icon Technical Info - ULTRA POWER Technology - Products
DrillDown Icon Technical Info - VMAR - General
DrillDown Icon VMAR - Documents
DrillDown Icon VMAR - Adhesives
DrillDown Icon VMAR - Canopy (Window) Cleaning
DrillDown Icon VMAR - Canopy (Window) Replacement
DrillDown Icon VMAR - CG Location - General
DrillDown Icon VMAR - Cleaning Model Aircraft
DrillDown Icon VMAR - Construction
DrillDown Icon VMAR - Control Surfaces
DrillDown Icon VMAR - Covering
DrillDown Icon VMAR - Cowl Installation
DrillDown Icon VMAR - Electric Power Conversions
DrillDown Icon VMAR - Engine Mounting
DrillDown Icon VMAR - Engine Power Module
DrillDown Icon Power Module - Alignment
DrillDown Icon Power Module - Distance from Firewall
DrillDown Icon Power Module - Wood
DrillDown Icon Power Module - Wood - Laminations
DrillDown Icon Power Module - Wood - Sealing
DrillDown Icon Power Module - Retaining Nuts
DrillDown Icon VMAR - Flaps & Flaperons
DrillDown Icon VMAR - Fuel Leaks - Fuselage Soaked - What now?
DrillDown Icon VMAR - Fuel Proofing
DrillDown Icon VMAR - Fuel Tanks
DrillDown Icon VMAR - Glow Power Conversions
DrillDown Icon VMAR - Hardware & Fittings
DrillDown Icon VMAR - Jet (Turbine) Power Conversions
DrillDown Icon VMAR - Landing Gear
DrillDown Icon VMAR - Packaging
DrillDown Icon VMAR - Parts
DrillDown Icon VMAR - Servo Trays
DrillDown Icon VMAR - Specifications of Models
DrillDown Icon VMAR - Wings
DrillDown Icon VMAR - Wing Fairing Replacement
DrillDown Icon VMAR - Wood Types Used
DrillDown Icon Technical Info - VMAR - Products
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 Technical Info - VMAX Engines (Glow) - Products
  Email This ArticlePrint PreviewPrint Current Article/Category and All Sub-Articles/Categories
 
Power Module - Alignment - What angle to use?

Question: My VMAR ARF uses the VMAR Power Module system. What angle should I align the Power Module at?

Answer: The VMAR Power Module system uses a fixed firewall "ring" permanently attached to the fuselage and a removable forward firewall "plate" to which the engine mounts are installed. Four stud bolts protrude from the fixed firewall ring and are used to set the offset spacing and hence the angle between the fixed firewall ring and the removable firewall plate.
 
This system provides a great deal of control over the offset spacing ("gap") between the firewalls to accommodate a wide range of different engine depths and spinner types. By varying the placement of the retaining bolts and washers on the four stud bolts, modelers can also control both the horizontal and vertical engine thrust angles.
 
We recommend a default setting for the horizontal and vertical engine thrust angles of 0, 0 respectively by having a consistent (equal valued) offset between the fixed firewall ring and forward firewall plate. The most common departure for this default configuration is 1-3 degrees of right thrust to assist with take offs. The vertical thrust angle can be adjusted as well if for example a particular engine power and weight combination results in "ballooning" of the model when additional power is applied above a cruise setting sufficient to maintain level flight. Such ballooning is often an indication of the need to adjust vertical thrust angles.  
 
The default 0.0 settings are the best place to start remembering that the VMAR Power Module system makes it easy to make incremental adjustments to the horizontal and vertical thrust angles as fliers become more familiar with their model and engine power settings. No setting is irreversible. The thrust angles can be changed at any time.
Related Articles

Article ID: 6846