Remember fondly the first imported into Oz, VH-ASH by Associated Airlines with the original Gypsy installed, brand spanking new and complete with a drift sight. Fortunate to fly a number of trips as pax, but on the nostalgia stakes not a patch on the Lockheed 12A it replaced.
Yes, I remember ASH and also the sound of the pneumatic braking system, not to mention the difficulty the pilots had in starting the Queens with a downwind blowing into the exhaust pipes.
Interestingly enough, ASH was one of the first Heron MarkII's, the previous version having FIXED undercarriage.
The Lockheed certainly had the edge on the Heron in the noise stakes also. I don't know what happened to ASH, but the last I saw of ABH was at Dragues Museum in Wangaratta looking terrific.