@ ChalfontFlyer ...
Worth just noting this morning that whilst the vast majority of airlines are currently unable to operate wthin the British Isles, it is possible to fly between the islands in the Channel Islands where both Aurigny & Blue Islands are continuing to operate their schedules.
Aurigny operate piston engined BN Trislanders at around 1500' on the short [20-30nm] hops between the islands.
Blue Island operates a variety of types, but I suspect they are using their Trislanders on inter-island hops as well.
Not exactly in the same league