Record

Ref No	DM1306/11/1/2/folio 105-106
Title	Letter from Isambard Kingdom Brunel to H.H. McMinnies
Description	Written from 18 Duke Street, Westminster, London. The letter thanks McMinnies for his letter about his opinions of negative slip in screw propellers but suggests that McMinnies' opinions are wrong and that negative slip is a misleading term and also that there is not really a perceptible alteration when a screw is used in addition to sail, or at least not one that is different to the effect produced by adding additional sail.
Date	26 May 1855
Format	Manuscript volume
Extent	2 pages
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Access Conditions	This material is held at the Brunel Institute - please contact the Brunel Institute to arrange access.

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