11-03-2023, 05:31 PM
In the early years (1970's) with my RP when I used it every day year round, I rigged up a very simplified version of that shown by Peter Naulls. There was already a large hole with a blanking plate in the more horizontal part of the bulkhead. I pushed a large diameter flexible pipe into this and wired the other end to the top of the radiator open end forward. It was also wired to the radiator stay to keep it off the engine. This worked well in that it provided a moderately warm draught in the passenger footwell which could be regulated if required by stuffing a rag, old sock or similar up the pipe. Easily removed in summer and the blanking plate restored too.