Ok, what I have until now is …
1) A contemporaneous Swiss Army’s internal report says , three aircraft
landed at Rapperswil on 13.11.18. One of them was
2) The same army report recorded two other Siemens-Schuckerts, both
landed at Schaffhausen on the same day, flown by
Pilot Lange does still not fit in this list, as I tend to trust the Swiss Army report, unless there had been more than three SSW that day.
Why should Swiss authorities make it up?
But at least it seems, that newer documents, that recorded two SSW D.III’s and one SSW D.IV
, must be wrong.
What I am doing now is to search in local archives, i.e. local newspapers.
I am in contact with local historians and Swiss aviation experts too. Hope I will be able to find some new stuff…
Perhaps about these two: