a version of the Dartington underfloor entrance
Might be similar but not quite. The Dartington entrance slot is best part of 50mm from the front wall. I think the Dartington is a fab idea but not as yours for a National. Why? OK in the summer, but can easily get blocked with dead bees over the winter. With the Dartington the colony is hived centrally in the body during closed season, so that scenario is avoided. Good design.
RAB
Might be similar but not quite. The Dartington entrance slot is best part of 50mm from the front wall. I think the Dartington is a fab idea but not as yours for a National. Why? OK in the summer, but can easily get blocked with dead bees over the winter. With the Dartington the colony is hived centrally in the body during closed season, so that scenario is avoided. Good design.
RAB