Similar items over time

Tractor - Williames Wildcat, 1973 Object Reg. No: ST 030387

This example of the Wildcat tractor was donated to the Museum in 1978 by its designer, Geoffrey Williames. It is powered by a Sachs-Wankel rotary engine.
Discipline: Technology
Dimensions: 1500 mm (Height), 2000 mm (Width), 3400 mm (Length)

More information

Tagged with: steam traction engines, tractors, wildcat, slasher, agricultural equipment, farming methods, innovation design
Themes this item is part of: Williames Wildcat Tractor, Engineering Collection, Sustainable Futures Collection
Primary Classification: AGRICULTURE & RURAL LIFE
Secondary Classification: Internal Combustion Power
Tertiary Classification: tractors
Maker: G.A. Williames Design & Construction, Warragul, Gippsland, Victoria, Australia, 1973


Lauren Jones Posted on 29 Nov 2009 3:58 PM
Hi, My dad has recently purchased a Williames Wildcat and is looking to restor it to it's original condition. Do you happen to have any manuals or information that he would be able to access?
johnarentz Posted on 08 Dec 2009 2:23 PM
Hi Lauren,
Your dad could try contacting Williames Hi-Tech for information. They may help. Most of the components are off the shelf engineering items. The sprockets, chains, bearings etc can be easily found through engineering suppliers. Your Dad may have trouble with the hydraulic pump/motors as depending on the machine the parts may no longer be available so he would need to consult a hydraulics specialist about that. Almost all of the rest can be replaced easily. Hope this helps.
johnarentz Posted on 08 Dec 2009 2:26 PM
Williames web site is
Ian Spark Posted on 22 Dec 2009 4:09 AM
I have a Wildcat identical to your exhibit (in good condition) except it is painted green. I also have a spare Wankel Engine. Would a museum be interested in purchasing it?
Discovery Centre Posted on 22 Dec 2009 1:24 PM
Museum Victoria Comment
Hi Ian - Whilst the Museum has a limited acquisitions budget, and most of our items come in by donation, we are happy to accept sale offers. Please see the form and guidelines available at the following page:
Robert Posted on 27 Dec 2009 9:27 PM
Hi, the RT45 Austrak was also made in Brisbane between 1980 and 1983.I know this because I worked there fabricating and welding the chassis and implements.
Discovery Centre Posted on 28 Dec 2009 10:20 AM
Museum Victoria Comment
Hi Robert, thanks for your comment.
Lauren Jones Posted on 01 Jan 2010 12:52 PM
Ian, I was speaking to my dad and he was wondering what price you would be wanting for your Wildcat? If you are interested in selling it could you please let me know and I will pass on my dad's details to you.
John Posted on 22 Mar 2010 9:37 PM
Ian, I am very interested if you still have sachs rotary Wildcat. Extremely interested as well. Just love all things rotary and have quit a few.
Maria McIntyre Posted on 21 May 2010 7:15 AM
Ian, I am a widowed farmer totally burnt out on Black Saturday, I lost all my machinery,and am looking for a Wildcat which is the only piece of equipment I have ever felt comfortable using on my farm.
Sam Johnson Posted on 12 Jul 2010 12:14 AM
My father Peter Johnson worked as a salesman for Williames selling the "Wildcat". After the company was handed over to administrators he worked for them selling off the stock on hand.
Dad then went on to design and manufacture the AUSTRAK RT45. Using his knowledge of the industry, target market and mechanical workings of the Wildcat, the AUSTRAK RT-45 was a very reliable and stable operating platform. A little over 100 AUSTRAK Tractors were built and sold around Australia.
Dad developed a "Cherry Picker" style boom that was fitted to the machine capable of holding one person for the purpose of harvesting fruit. Considerable interest in Saudi Arabia for the harvesting of dates, saw a very large order placed. Unfortunately Dad was not able to make the return trip to Saudi for the official "signing of the documents" so he sent a man who he had employed as a salesman in his place. The salesman got the order for the machines but the order was to be supplied by himself and not us!
I was only young at the time but I remember how it flattened the Old Man. Lengthy and expensive court cases saw that the machine was never built again.

I would dearly like to purchase and restore an AUSTRAK in my Brisbane workshop. I would also like to get in contact with other AUSTRAK owners to keep tabs on where they are and possibly help them with the repairs and maintenance. Anyone who purchased a machine off Dad would have remembered him, he was liked by all and dearly loved by his family. He passed away at the age of 66 three years ago, on the same day as his birthday! Not long after I started AUSTFORK, a forklift and machinery business.
Norris Posted on 25 Jul 2010 9:23 AM
Thanks for filling in the conection between Williams and Austrak, I Operated, built and serviced Austrack RT45 in Victoria and Saskatchewan Canada
Rob Barnard Posted on 28 Jul 2010 6:57 AM
I recently purchased an Austrak RT-45 from e-bay. It's been well used. It came with some tech brochures and colour photos. I'm using it on a property in the Otways in Victoria.
If you'd like more information or want to get in touch, please e-mail me at
John Posted on 03 Aug 2010 10:37 AM
Sam, I remember you when you were very young. Your dad was a great guy and an extraordinary salesman. However, he had nothing to do with designing or building the Austrak RT 45. He only sold it. There were many RT45's built in Qld. and Vic. Your dad did not lose an order to Saudi Arabia. The order just wasn't there to be had but he caused the Austrak company to spend a lot of money gearing up for an order. There are many aspects much different to only the side you have heard.
Frank Posted on 04 Aug 2010 6:43 PM
Can someone tell me if this is the same chap that designed and manfactured the MANTA Beach Buggy?
The Manta first appeared at Frankston, Vic, in 1968 from Manta Fiberglass products and went on to emanate from several different Victorian producers in other locations. It was next based at Upper Beaconsfield before coming under new management of Paul Jensen of Scanco (Aust) at Berwick by 1971. Manta then claimed to be the first to fit a curved windscreen to a dune buggy. In 1972 the Manta was being produced and marketed by Williames Design & Construction of Warragul. Scanco (Aust) was again in control of the Manta project in 1973, having taken over the former G A Williames Fiberglass operation at Warragul, which also produced fiberglass Canoes. Although having several homes and principals the Manta appears to have had a longer production run than several other makes.
Johnb Posted on 20 Sep 2010 7:44 PM
I own a Austrak RT 45 and am looking for help to repair it! Any help welcomed!!
john arentz Posted on 11 Nov 2010 5:13 PM
For those of you who wonder what machines like the Wildcat and Audtrak could do I have just uploaded about 11 minutes of Austrak promotional video clips to youtube - just type in AUSTRAK search and be amazed!!
Philip Farnell Posted on 11 Nov 2010 6:27 PM
I was lucky to buy a William Wildcat from Shepparton VICTORIA in an orchard. The unit was being converted to a Cherry Picker and is powered by a 4 cylinder Kubota diesel. This is an unfinished project, came with some photocopied manuals and started its life as a small tipper....most unique. I want to finish the unit and make it into a hill climbing boom sprayer capable of spraying weeds in steep country around Bacchus Marsh. Any help would be gratefully received. I also know of a very rusty unit in Yendon near Ballarat for $1000. Phil
john arentz Posted on 22 Dec 2010 11:41 AM
I noticed that this exhibit has brought out a lot of Austrak/Wildcat fanciers. I have thought for a while that some sort of on line facility should be set up to share info and source machines and parts.
I have set up a blog site

for that purpose. It's only new and still needs a lot of work but people can use it to connect by way of the "comment" facility.

Hope that helps.
Have a great Christmas!
John Posted on 20 Apr 2011 1:05 PM
I own an RT45 and have had the hydraulic drive on the driver side fail, the inner olive has broken and punched a hole in the casing I`m chasing a entire drive or whatever I can get my hands on
Sam Johnson Posted on 09 Jul 2012 11:39 PM
Dear John,
Firstly without knowing who you are and where you have sourced your information I would like to conclude that you were involved with the company or have no idea at all!
We still have the original designs of the Austrak RT 45. Sales records, advertising material etc. There were a few details that I put forth in my previous post that I had remembered differently to what had actually happened, I was very young and Mum has corrected me on the details!!!
As for the design and the concept of the machine, that can't be taken away from the old man, many have tried, your probably one of them and that's why you wont publish your full name.
Just remember John, as powerful as the internet is, it can't change the past or the truth.
I'm really looking forward to talking to you soon.
ken Posted on 20 Sep 2014 5:37 PM
hi i have a version of the wildcat (one of the 20 made by the Toft company in Bundaberg)a great tractor design it is a shame that 1000s wernt sold as they are very versatile and safe on steep ground

Add your comment

  • Museum Victoria does not provide valuations, for more information please visit the valuation infosheet
  • Please note that Museum Victoria staff will not normally respond to comments posted on our website.


This item is part of the following themes:

Similar items

Yes No