A new topdressing aircraft

Megan Hutching
MOTAT
Published in
4 min readDec 17, 2019

‘You took off from paddocks, and it was really pretty dicey.’

Janic Geelen. 1983. The topdressers. Ref: 05–2507, Walsh Memorial Library, The Museum of Transport and Technology (MOTAT). Limited edition 169 of 700. All rights reserved.

Guy Robertson served in the Royal New Zealand Air Force in the Pacific during the Second World War. He returned to New Zealand and looked around for work where he could use his flying skills. First, he worked as a flying instructor for the Waikato Aero Club, but when aerial topdressing started in New Zealand in the late 1940s, he saw the opportunities and established Robertson Air Service Ltd: ‘I went topdressing with a [de Havilland] Tiger Moth … . Seven days a week stuff.’

Robertson Air Service Ltd

Guy’s first client was Frank Gardner of Cambridge. ‘I took off from one of his paddocks. I’d never dropped a load before so I was learning. I remember, we were sitting having a cup of tea halfway through the job on the edge of the strip, and he said, ‘I wonder if you’re putting it on the farm. Is it going on the farm, or is it going somewhere else?’ And I said, ‘Every sheep dropping you can find, Frank, that hasn’t got super on it, I’ll give you £5.’ Which I didn’t mean, of course. As it happened, he got up and had a look and he couldn’t find one without super on it — because the dust floated right over. It covered everything.’

Guy had bought his Tiger Moth from a relative, ‘and I didn’t crash it or prang it. Got away with it because in that early stage, there were no decent air strips around. You took off from paddocks and it was really pretty dicey.’

The aircraft had to be modified for topdressing. ‘You had to put a hopper in it. Where the front cockpit passenger or instructor’s seat was, the hopper was put in there and you flew it from behind the hopper. One of the disadvantages of the Tiger was that you got the super [phosphate] blown back in your face when you were flying, which wasn’t very good.’ The Tiger Moth also had no brakes, was under-powered and the forward visibility was poor. ‘It was a great aircraft, lovely aircraft, and did a great job during the war but it couldn’t survive as a top dresser.’

Fletcher FU-24

In October 1953 Wendell Fletcher of Fletcher Aviation Corporation in the United States visited New Zealand to talk with aerial topdressing operators and others in aviation to discuss building a specialist topdressing aircraft suited to New Zealand conditions. Guy recalled that ‘we told him what we needed, and it was agreed — Cable Price said, yes, they would organise the sale of a hundred of these if Fletcher went ahead and built them. So, on the strength of that, Fletcher went ahead.’

Australian Government Trade Commissioner, Mr Kevin Cosgrave meets Mr G Scheltema, General Manager of Air Parts. Looking on is John Verleun, pilot who is flying the aircraft to Australia. Unknown photographer. [1950s]. Fletcher FU 24 on the ground. Ref: 11–5935, Walsh Memorial Library, The Museum of Transport and Technology (MOTAT). Copyright undetermined.

The operators were looking for an aircraft ‘that would take a bigger load. Something that had brakes. Modern, with plenty of power and forward visibility. With the Fletcher, we had all that. Low bonnet out the front — you could see everything. It was great.’

The aircraft was designed by John W. Thorp and labelled the FU-24. In July 1954 Guy, along with Ossie James (of James Aviation) visited the United States to check on progress, and Guy flew the prototype. Both were impressed. Fletcher had listened to what topdressing pilots had told them. ‘I was very thrilled.’

Fletcher Aircraft. 1966. Aircraft [Fletcher FU-24/FU-1060]. Ref: 2006.349. The Museum of Transport and Technology (MOTAT). All rights reserved.

While there were other possible topdressing aircraft, such as Cessnas, none had been specifically designed for top dressing and the FU-24 was widely used in New Zealand. Guy felt that it ‘won out because it’s such a wonderful aircraft for the job.’

Guy Robertson died in July 2013, aged 97.

Megan Hutching, Oral Historian

Cite this story: Hutching, Megan. A new topdressing aircraft. First published: 17 December 2019. URL: https://medium.com/motat/a-new-topdressing-aircraft-fcac77430ed0

References:

Lou Forhecz. 2004. 50 years of the Fletcher Fu24 in New Zealand, Matamata: Lou Forhecz

Guy M. Robertson, 11 November 2011. MOTAT oral history interview with Guy Robertson, 12–1126. Walsh Memorial Library, The Museum of Transport and Technology (MOTAT)

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