Grob Tutor vs DHC-1
I have to take issue with those who look at the DHC-1 through rose tinted glasses, it is indeed a great aircraft to fly and has many indeering qualities but maintanabilty is not one of them.
The maintenance bill for the DHC-1 is eye watering it is an aircraft full of special parts used in places that standard parts could be used and sometimes these parts are very Labour intensive to fit ( such as having to drill split pin holes in bolts ), and that is before we get to the 1920's engine that can't keep the oil inside.
The GrobTutor has had issues , the propellor selected for the aircraft was not the one recommended by Grob so the forced change to the Grob recommended prop was a bit of an own goal, the current tail cracking issues are well understood and not to difficult to repair by skilled staff, contrast this to the pages of TNS's for the DHC-1 that range from time limited parts to X-ray inspections ( try arranging one of those in a hurry !).
The message is clear, the DHC-1 is an aircraft that by now should be a rich mans toy and confined to sunny summer afternoon flying , it is no longer a viable military training aircraft in both financial and practical terms however the Grob is and the updated Sister aircraft the G120tp will be training RAF pilots for years into the future.