Scandahooligan countries (& Russia) = very good for de-icing, they have been doing it for a while!
Yep, that’s the best way - it gives the minimum “hold-over” time for the efficiency of the fluids - depending on the frost / icing, it can be a “one step” method (clear off frost & go), or, 2 step (clear off the ice / snow, then a “preventative” fluid that prevents icing for a while.
Always good to de-ice properly, lots of incidents where failure to do so has led to fatalities, especially aircraft with a super-critical wing (very unforgiving for the slightest amount of frost / ice). I’d only been at Almaty a day or so before the crash there.
Station Commander Cosford has plenty of people at his disposal with all the apprentices there and he wouldn’t want to disappoint his boss now would he! Those OJARs don’t write themselves you know.
Don’t forget 1. AEF pilots are volunteers - how warm is that cockpit? 2. Cadets - how warm is that cockpit? 3. What happens to pilots and cadets if they bail out? Can we assure their safety until rescued? 4. Ice on surfaces is a big problem and expensive to fix, and deicing surfaces mostly only used by Tutors (e.g. the eastern taxiways at Cranwell, the runways at Benson) may not be a priority.
Benson isn’t 24/7, not even close. Almost always closed on Sundays - though the ATZ always NOTAMmed as active as police, air ambulance and flying club all fly out of hours and otherwise idiots tend to plough on through the circuit thinking ‘it’s closed’…
Unless the AEF accommodation was unsuitable due to the temperature (no heating etc) so regardless whether the plans could fly, it wouldn’t be safe to have a cadet wait 5hrs in freezing temperatures before going up.
Cosford is a lot further south so the temperatures would have been slightly different.
Bailing at at 8000 ft, using standard drop of 2C per 1000 ft (it should be 1.98C but can’t do the maths! ) with a ground temperature of 0C = -16C. If we are worried by bailing out temperature / wind chill / time for rescue on the ground, then AEFs would never fly in winter.