by Greg Whiter, VK
4IG (Ex VK3CA)

These pages depict Clark Masts original range of mast products.
To see Clark's current mast series go to Portable Mast Australia Pty Ltd's (PMA's) web site.


Page 1 of 18 - Clark Masts, over 67 Years Old in 2023

1969 Clark Masts Catalogue Front Cover1969 Clark Masts Catalogue Front Cover

In the early 1970's Clark Masts published their first catalogue in 16 years. Alec Clark, the company's founder had been designing and building portable air-operated telescopic masts since 1957. During this time Alec Clark's unique lightweight portable masts had found their way into applications throughout the world with government Departments Of Defence, Police Departments, Fire Departments and Emergency Services. Commercial and industrial applications included for Radio Field Strength Surveying, TV Field Strength Surveying and portable radio communications.

Alec Clark's company, Clark Masts Limited, performed practically ever manufacturing operation itself in-house. Fabrication, casting, precision machining, canvas sewing, plastic and rubber mouldings, anodising and plating, painting, printing, publishing and even the manufacture of packing cases were all in-house operations. 

Australian users first saw these unique portable masts in the early 1960's courtesy of a antenna manufacturing company called Belling-Lee and the foresight of a gentleman working for them at the time, Frank Welsh. Frank went on, with others, to form his own company, Scalar Industries, in the late 1960's and brought the Clark Masts agency with him. Following Frank Welsh's retirement from Scalar in the mid 1980's GFS Electronics took on the Australian distributorship and continued to market Clark Masts in the Australia Asia-Pacific region until the company was closed in 2011. In 2012 a new company, started by Greg Whiter, who was previously Managing Director of GFS Electronics took over the Australian distributorship of Clark Masts. That new company is Portable Masts Australia Pty Ltd and still handles Clark's extensive range of masts today.

Illustrated in these web pages, for historical purposes, are some pages from Clark Masts Limited early 1970's catalogue.

Clark Mast 1970's Catalogue Inside Fron CoverClark Masts 1970's Catalogue Page 3 - Introduction

Located at Binstead on the Isle Of Wight in the United Kingdom, Alec Clark's Clark Masts Limited built quite an organization, with most manufacturing operations carried on in house as can be seen from the catalogue introduction shown above.

Clark Masts 1970's Catalogue Page 4 - Introduction

The smallest in Clark Masts Limited early 1970's mast range was the QT Series, consisting of four models which were sold with or without side mounted handpumps for mast erection. All four models in the QT Series used a base tube of 63.5 mm (2.5") outside diameter and had unguyed wind ratings, with 1000 square cm of sail on top, from 40 km/h to 128 km/h, depending on the model. Today's QT Series mast range consists of 200 different models, a far cry from the four models which existed 54 years ago!

Clark Masts 1970's Catalogue - Page 5 QT - Series MastsClark Masts 1970's Catalogue - Page 6 -  QT Series Masts

Clark Masts 1970's QT Series masts offered extended mast heights from 5 metres to 12 metres. All masts in the series had a 24 mm socket at their head with a quick clamp for attachment of their headload. Each size QT Series mast was available either with or without a side mounted handpump, unlike today's QT masts which are all supplied with handpumps.

Clark Masts 1970's Catalogue - Page 7 -  QT Series MastsClark Masts 1970's Catalogue - Page 8 -  QT Series Masts

Shown below is a list of the various accessories available for Clark's early QT Series. The accessory range included a Tripod for "stand-alone" mounting of the mast, a handpump or 12/24 volt operated Air Source/Mast Controller for mast extension/retraction, various mounting brackets for the mast as well as for the headload. A range of Guying equipment was also available.
QT Mast Series AccessoriesClark Masts QT Series mast Accessories

CLARK SCAMP MOPED - A slight diversion from portable mast manufacturing occurred for Alec Clark in 1967 with the design and manufacture of a small moped called the Clark "Scamp". The Scamp was developed and marketed in the United Kingdom by Alec's company AN Clark (Engineers) Limited from March to November 1968. For more details on the Clark Scamp moped see HERE.

Next Page - Clark Masts History - Page 2 - ST Series Masts

Other Web Articles by the same author   EARLY YAESU MUSEN EQUIPMENT IN AUSTRALIA 


Links to other pages in this article
Page 1 Clark Masts History - Early 1970's QT Mast Series
Page 2 Clark Masts History - Early 1970's ST Mast Series
Page 3 Clark Masts History - Early 1970's PT Mast Series
Page 4 Clark Masts History - Early 1970's WT Mast Series
Page 5 Clark Masts History - Early 1970's DAF Mast Series
Page 6 Clark Masts History - Early 1970's SCAM Mast Series
Page 7 Clark Masts History - Early 1970's PB1 Mast
Page 8 Clark Masts History - Early 1970's Surveyor Mast Series
Page 9 Clark Masts History - Early 1970's 63/70 Trailer Mounted Mast
Page 10 Clark Masts History - Early 1970's 63/100 Trailer Mounted Mast
Page 11 Clark Masts History - Early 1970's Mast Fitting and Mountings
Page 12 Clark Masts History - Early 1970's Vehicle Mounting Accessories
Page 13 Clark Masts History - Early 1970's Air Supply Equipment
Page 14 Clark Masts History - Early 1970's Guying Equipment
Page 15 Clark Masts History - Early 1970's Antenna Fittings
Page 16 Clark Masts History - Early 1970's Miscellaneous Equipment
Page 17 Clark Masts History - Early 1970's Antenna Mounting
Page 18 Clark Masts History - Early 1970's Useful Wind Information
Appendix Clark Masts History - The 1968 Clark Scamp Moped

Any comments on this article should be directed to the author, Greg Whiter at: 

Details On Clark Masts Current Range Of Portable Telescopic Pneumatic Mast Products 

This page is sponsored by Portable Masts Australia Pty Ltd
Suppliers of Fast Erecting air operated telescopic portable masts and towers as well as Debeglass Non-Conductive Guy Wire
For product details and a catalogue covering over 200 different mast types of Clark Masts go to
PMA's web site.
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Phone: +61 402130692
Mob: 0402130692
PMA Contact Details

Copyright © Greg D. Whiter 2023 - All rights Reserved

This page was last updated 05-01-2023

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