You could do electric heating element. The tiny little floor heaters we use here at home in winter are pretty good. 1500W element would probably do a cabin at altitude.

With electric pressurization maybe taking 3hp, which is about 2.2kW, seems to me you could get by with a 4-5kw generator/alternator to cover both needs. We all know how big a 5kw brushless motor is (which is also a generator) - they're pretty small these days.

ISTR about 6 lb/min/engine for pressurized twin turboprops.

Our PT-6 twin turboprops at Cessna had an auxilliary electric heater to maintain heat at low power settings.

The 208 had a control knob that varied the amount of air by changing the setting of the bleed air flow control valve. We had problems with it.

We have that electric heat in the 425. It has two 50 amp breakers and is almost scary at the amount of power it draws.

A heat pump is much more efficient than resistance heat and can be combined with air conditioning. It might need a little help in the flight levels or when a Canada Clipper moves in.

Don't heat pumps have performance problems at cold OAT's?

Don't heat pumps have performance problems at cold OAT's?

Anyone have first hand knowledge of these guys?

https://www.centauri-aircraft.com/

They don’t seem to be doing much marketing or trying to raise funds? Not sure if that means they are more legit or not.

Doesn't look like the prototype is flying much
https://www.flightaware.com/live/flight/N211CA

Website seems short of a lot of information. Couldn't find much on the engine.

Centari seems like a lot of unnecessary drag with multiple control surfaces and intersection drag areas. Designed for styling by an artist and not an Aerodynamicist?

For light GA airplane Pusher is dead end. Canard is dead end. Even Rutan moved away from the configuration in later years.

He's been posting on FB, looking for volunteers or paid in stock to help finish the prototype and build the 19 orders he already has.
He claims this fiberglass fuselage will take a 6.7 psi pressurization differential.

Years ago at Cessna, a Flight Test Pilot and
Flight Test Engineer designed and built a canard pusher to win an efficiency contest. It was uncontrollable on first flight and the pilot was either thrown out or parachuted too late, and was killed.

There was a joke going around at Cessna that with enough control surfaces you could get interference thrust.

There was a joke going around at Cessna that with enough control surfaces you could get interference thrust.