Tnxs for the pix Dan.
If I recall there where only two flap settings for the Dove, 20 degs & 40 deg's meaning 20 deg's was the only flap setting used for T/off (if at all) I don't recall 10 deg's although maybe the Riley conversion Doves (the ones I drove) where modded. Happy to be corrected as it was a year or two ago now that I shoe horned myself into one of the most UN-ergonomically designed cockpits!
I did a bit of YouTube searching & it was indeed DHD used in a episode of the 'Flying Doctors' TV series:-) God that is a corny show now when I look back at it
Wmk2