Electrical power supplies on large aircraft, for electrical deicing are
- Both AC or DC.
- DC.
- AC.
Explanation
On large aircraft the primary electrical system is AC, so propeller de-icing heating elements are normally supplied with AC power. The supply is not DC, nor a free choice of both; the heater design matches the aircraft's main AC generation system.
obrien99 asking:
Is this correct? I thought some turbo props used AC wild for electrical de icing. i'm sure the key to this question is "large aircraft" i assume this would be aircraft over 7500kg.
Community Comments (7)
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obrien99 Posts: 17 07.03.2012 / 13:53
Done a little bit of reading on this found some info on the Dash 8 the blades are de iced by 115V
read the prop section on page 6
http://www.smartcockpit.com/data/pdfs/plane/bombardier/DASH-8-200-300/systems/Dash8-200-300-Ice_and_Rain_Protection.pdf
read the prop section on page 6
http://www.smartcockpit.com/data/pdfs/plane/bombardier/DASH-8-200-300/systems/Dash8-200-300-Ice_and_Rain_Protection.pdf
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dimky Posts: 514 16.03.2012 / 16:56
Hey Obrien!
Sorry for late reply. I agree with you, I marked AC as right answer instead of DC.
Sorry for late reply. I agree with you, I marked AC as right answer instead of DC.
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bhusan66 Posts: 3 03.10.2013 / 15:13
Larger aircraft use 115 V AC variable frequency power supply. Smaller aircraft use a 28 V DC power supply.
http://goo.gl/Gsygvp
http://goo.gl/Gsygvp
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mwongela Posts: 18 06.11.2014 / 20:40
does this mean that the answer is both?
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Ielgazali Posts: 3 07.11.2014 / 02:45
yes the answer is both
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Ielgazali Posts: 3 07.11.2014 / 02:58
Actually i take that back. the key word here in the above Q is LARGE AIRCRAFT. larger aircraft use 115 AC while smaller aircraft uses 28 VDC. so for this question the answer would be .AC
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max.steelame Posts: 10 19.10.2018 / 08:24
For this question Some answers are marked as DC please clarify.
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