Compass - Drift protractor - Museum of Transport and Technology, New Zealand

Object detail

Accession number

2007.67

Description

"Carroll" drift protractor. Clear (yellowing) plastic sheet with black printing showing distance calculations in a tapering triangular formation. Plastic is slightly curved from the centre.

Marks

"CARROLL" DRIFT PROTRACTOR PATENT APPLIED FOR Printed
LEFT / + / DOUBLE / THE ERROR / AND ADD / TO COMPASS Printed
RIGHT / - / DOUBLE / THE ERROR / AND SUBTRACT / FROM COMPASS Printed

Media/Materials

Processed Material/Synthetic/Plastic

Credit Line

Compass - Drift protractor, 2007.67. The Museum of Transport and Technology (MOTAT).

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Classification

Compass Tools & Equipment for Science & Technology Surveying & Navigational T&E Navigational Equipment

Collection type

Air and Space Transport

Subject auto tags

Font Line Triangle Parallel Pattern Slope Symmetry Plan Drawing Illustration

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Compass - Drift protractor