Blade spindle-moment values are presented for the operation of a five-bladed controllable-pitch propeller over a range of blade pitches and advance conditions. Spindle moment (blade turning effort) was measured on a single blade of NSRDC Model Propeller 4402 in an experimental program conducted in the 24-in. variable-pressure water tunnel. Experimental results are presented as mean spindle-moment values taken at steady-state operating conditions. No transient or time-dependent data were taken. The operating conditions investigated (1) positive pitch-steady ahead, (2) negative pitch-steady backing, and (3) negative pitch-ahead advance. The spindle moment due to hydrodynamic loading and that due to centrifugal forces were separated and nondimensionalized. The effects of Reynolds number and propeller blade cavitation are discussed briefly. (Kursetz)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Blade spindle moment on a five-bladed controllable-pitch propeller


    Additional title:

    Momentverlauf an eine Propellerblattspindel an einem Fuenfluegel-Schiffspropeller mit kontrollierbarer Verstellung


    Contributors:
    Denny, S.B. (author) / Nelka, J.J. (author)

    Published in:

    Publication date :

    1972


    Size :

    30 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English





    Blade bolt for controllable-pitch propeller

    CHEN CHENG / GUAN CHAO / CHENG SHUXIAO et al. | European Patent Office | 2020

    Free access

    Variable pitch propeller - blade pitch moment computational analysis

    Podsedkowski, Maciej / Lipian, Michal / Obidowski, Damian | IEEE | 2023


    Controllable pitch propeller

    Nordstrom, H.F. | Engineering Index Backfile | 1940


    controllable pitch propeller

    European Patent Office | 2021

    Free access