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An investigation into the effects of running propellers on the static longitudinal stability of multi-engine tractor-propeller-driven monoplanes

Citation

Amster, Warren (1948) An investigation into the effects of running propellers on the static longitudinal stability of multi-engine tractor-propeller-driven monoplanes. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-12082008-141518

Abstract

This thesis has three main purposes:

1. To establish an engineering computation procedure for predicting C[subscript M]( c. g.) as a function of C[subscript L] and power conditions for a multi-engine monoplane of conventional configuration with tractor propellers mounted on and forward of the wing from a given curve of C[subscript M] as a function of C[subscript L] for the power-off condition.

2. To recommend aircraft configurations which will minimize destabilizing effect of power.

3. To provide a physical explanation of the effect of power on stability.

Calculated C[subscript M] vs. C[subscript L] curves are compared with "matched-power" wind tunnel model test results. The agreement is good for all-right-hand rotation of propellers but unsatisfactory for other rotation modes.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Bell, Richard William (advisor)
  • Stewart, Homer Joseph (advisor)
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1948
Record Number:CaltechETD:etd-12082008-141518
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-12082008-141518
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4885
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:24 Dec 2008
Last Modified:26 Dec 2012 03:12

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