Straight & Level
If you were around in the mid 80's, you may remember the Aer Lingus 'Shed' that ended up as a chicken shed in a field near to EMA.
Well I was flying a Shed on that same day. I encountered more ice than I've ever seen at that stage of my career. Required prop RPM 1750 in icing, if I remember correctly. Rate of climb was never spectacular, but it became 100-200 fpm. Into reserve power, followed by RTOP in order to get out of the Iceing which thankfully I did. A former colleague declared a Mayday flying a Shed also that same morning. His Shed stopped climbing over the Pennines out of LBA and diverted into MAN. The Shed is a magnet for ice. The Mass balance on each aileron was caked in the stuff. The control column was floating if lightly held. The anti-ice and de-iceing system were very suspect. The Jetstream and the Shed were being certified at about the same time. The Jetstream had to be modified. The Shed manufacturers pleaded poverty by the potential affect to jobs at the factory in an area of high unemployment. I remember hearing a statement at the time, "....the Shed should never have been certified to fly in known Iceing conditions"
Diver