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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 ...
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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 ...
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12 votes
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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 ...
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3 votes

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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