35
votes
Accepted
What is this part which is mounted on the wing of Embraer ERJ-145?
They are called vortilons. They can induce a vortex to the upper surface of the wing at high angles of attack, which allows flying at higher angles of attack before stalling.
Additionally, four ...
- 44k
13
votes
What is this part which is mounted on the wing of Embraer ERJ-145?
They are Vortilons, a type of vortex generator. The placement of the vortilon low on the leading edge limits its vortex generation to high angles of attack (where the air meeting it is going over the ...
- 104k
12
votes
Accepted
What are the advantages of using DC electric power over AC, as e.g. done in the EMB 135/145?
Now, DC is easier to produce than AC and easily to inverted to AC
To produce AC of a specific frequency, you will need one of below
An engine that rotates at a fixed rate.
A variable transmission box ...
- 2,377
3
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What are the advantages of using DC electric power over AC, as e.g. done in the EMB 135/145?
Vastly easier to synchronize 2+ generators
With DC generators (or AC alternators immediately rectified to DC)... each generator simply has its own voltage regulator set to output the agreed DC voltage....
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