Thanks Alex. I have a copy of the new Hinkler book. The cause of the Puss Moth Crash is discussed on page 440. No definitive cause is given and different theories are mentioned.
If you are a Bert Hinkler fan or have an interest in the early days of Aviation, a copy of the book "Bert Hinkler" by Grantlee Kieza published by Harper Collins is worth buying.
