nomorecatering
23rd Jul 2005, 10:37
Question for any Electrical types Out there.
I was thinking about an electric cabin heater for a light twin, similar size to a Baron, Aerostar, Chieftain to take the place of the tradition Janitrol fuel powered cabin heater.
If you use a new type ceramic heater of say 500w power, I was wondering what current draw it would have and would the aircraft alternators be able to support the load. ..........24v system with 2 x 75 ampre alternators. Note, would design a heater from scratch, not using a house hold heater.
My theory notes say that Ampreage = watts over volts which gives me a current draw of around 20 amps. (500 over 24 = 20 approx).
Do the two alternators give a combined load of 140 amps, therefore 20 amp draw would be minimal.
just wondering what current draw an electric aircon system would use, as well as landing lights, prop de-ice, etc??
any help would be ,uch appreciated.
I was thinking about an electric cabin heater for a light twin, similar size to a Baron, Aerostar, Chieftain to take the place of the tradition Janitrol fuel powered cabin heater.
If you use a new type ceramic heater of say 500w power, I was wondering what current draw it would have and would the aircraft alternators be able to support the load. ..........24v system with 2 x 75 ampre alternators. Note, would design a heater from scratch, not using a house hold heater.
My theory notes say that Ampreage = watts over volts which gives me a current draw of around 20 amps. (500 over 24 = 20 approx).
Do the two alternators give a combined load of 140 amps, therefore 20 amp draw would be minimal.
just wondering what current draw an electric aircon system would use, as well as landing lights, prop de-ice, etc??
any help would be ,uch appreciated.