Electrical power supplies on large aircraft, for electrical deicing are
- AC.
- DC.
- Both AC or DC.
Explanation from PART66Online
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.
O
obrien99 asked · 5 Mar 2012
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)
O
obrien99
7 Mar 2012
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
smartcockpit.com/data/pdfs/plane/bomb...
read the prop section on page 6
smartcockpit.com/data/pdfs/plane/bomb...
P
PART66Online
16 Mar 2012
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.
B
bhusan66
3 Oct 2013
Larger aircraft use 115 V AC variable frequency power supply. Smaller aircraft use a 28 V DC power supply.
goo.gl/Gsygvp
goo.gl/Gsygvp
M
mwongela
6 Nov 2014
does this mean that the answer is both?
I
Ielgazali
7 Nov 2014
yes the answer is both
I
Ielgazali
7 Nov 2014
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
M
max.steelame
19 Oct 2018
For this question Some answers are marked as DC please clarify.
Please Sign In to post a comment.