Flight, 1911, The Problem of the Helicopter
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Efficiency tests conducted at Faraday House of Lorenzen's design of a variable-pitch helicopter propeller.
Summing up, therefore, we can only remark that the tests of the Lorenzan variable pitch lifting screw serve to show, as far as they show anything, that a propeller has one best blade angle compared with which every other is very inefficient indeed.
(This entry will be duplicated by upload from Brockett, 1921, when that's done.) Source: Flight No. 115 (Vol. 10 no. 15), 11 March 1911, pp. 208–209.
| Original title | The Problem of the Helicopter. Tests of the Lorenzan Screw |
|---|---|
| Simple title | The Problem of the Helicopter |
| Authors | |
| Date | 1911-03-11 |
| Countries | GB |
| Languages | en |
| Keywords | Christian Lorenzen, helicopter, propulsion, propeller, experiment, data |
| Journal | Flight |
| Related to aircraft? | 1 |
| Page count | 2 |
| Word count | |
| Wikidata id |
