Results indicate that changes in angle of attack, hub rotational speed, and forward speed generally had only small effect on equivalent flat plate area representing parasite drag; drag coefficients of basic hubs increased with hub area and varied from 0.5 to 0.76 for hubs tested.
Parasite-drag measurements of five helicopter rotor hubs
NASA -- Memo
National Aeronautics and Space Administration -- Memorandums ; Memo 1-31-59L
1959
25 pages
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Parasite-Drag Measurements of Five Helicopter Rotor Hubs
NTIS | 1959
|Parasite-Drag Measurements of Five Helicopter Rotor Hubs
NTRS | 1959
|Composite-Material Helicopter Rotor Hubs
NTIS | 1973
|Reduction of helicopter parasite drag
TIBKAT | 1954
|Reduction of helicopter parasite drag
Engineering Index Backfile | 1954
|