Evening Folks,
Permit me please to kick the dust around on this one a little......
Victa produced 166 airframes between '62 and '65 and the very large majority of these were sold to the local market. This suggests to me that the local market was very much behind the local product and that the airtourer was making very significant sales here ( remember that sales volumes in aviation are nothing like those in the motor trade of the OPE game!). In fact I'd suggest that if all things remained equal and they kept going the way they were they would have saturated the local market in a very short space of time! To continue sales at a profitable rate they were going to need to export, and do so seriously and there'd be no tariff protection in the export game. If fact they'd have to fight to import against the tariffs of other countries. The Australian aviation industry is not big enough to support any manufacturing based on local sales alone.
Also, the stuff I've been reading lately suggests that Victa had spent WAY too much money on R&D in the early sixties and that the cost of all this R&D was gjoing to take a massive number of aircraft sales to absorb. The poor old airtourer just couldn't do this on its own and even if the aircruiser was put into production and local sales went well it would require the continued long term support of the profit making parts of the Victa organisation for many years to come and the opening up of export sales for the Aviation division to finally show a profit. R&D would also need to be reigned in. R&D and product development is all well and good but in the aviation game it costs a fortune and the sales volume is low.
And that gyrocopter would never make a dime......
Even if the governments of the time had tariff protected the Airtourer, the Nomad, Transavia Airtruk and other, all it would have done is offered short term breathing space while the manufacturers consolidated themselves and prepared to fight it out with the big boys in the export market.
Personal musings offered in the hope they provoke thought and debate!

Cheers,