Originally Posted by
Dan Winterland
1. No conditioning and no pressurization. There is no temp contol. It will get pretty cold. Max alt is 10,000' for opening the ram air because the cabin will depressurise once the ram air scoop is open.
In the Ram Air you have a check valve. You cannot depressurize with the Ram Air. You depressurize with the outflow valve and when the differetial pressure is below 1 PSI the Air from outside can counter the action of the check valve.