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1. Mathematics
2. Physics
3. Electrical fundamentals
4. Electronic fundamentals
5. Digital techniques / Electronic instrument systems
6. Materials & hardware
7. Maintenance practices
8. Basic aerodynamics
9. Human factors
10. Aviation legislation
11. Aeroplane aerodynamics, structures and systems
12. Helicopter aerodynamics, structures and systems
13. Aircraft aerodynamics, structures and systems
14. Propulsion
15. Gas turbine engine
17. Propeller
Last comments in Q&A
mfranj1 left comment on gav_18s's question:
Thanks!

krishnavikash left comment on Richiegeee's question:
its area is calculated by 1/2 * sum of parallel sides * perpendicular distance between them

Sina left comment on Richiegeee's question:
(2x)^2 * (z)^2 * (3x - z^2 ) =
4x^2 * z^2 * (3x-z^2) = {(4x^2 * z^2)*(3x) - (4x^2 * z^2)*(-z^2)} =
12x^3 * z^2 - 4x^2 * z4
Thus; (12x^3*z^2 - 4x^2*z4) / 2 ==> 6x^3 * z^2 - 2x^2 * z^4

Sina left comment on Richiegeee's question:
A simple two gear system consists of two gears. Typically one gear is smaller while the other is larger. The smaller gear is normally called the pinion, while the larger gear is called the spur gear. Gear teeth are cut parallel to the shaft.

joselizardo left comment on Benny's question:
4800/1200= 4
Z2=1000
4=(1000/Z1)^1/2
4^2 =1000/Z1
Z1=1000/16 = 62.5
WHY 16KOhm?
Last finished tests
aozora finished 2. Physics with 56% result.
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Hamishscott93 finished 15. Gas turbine engine with 76% result.
aozora finished 8. Basic aerodynamics with 46% result.
aozora finished 3. Electrical fundamentals with 46% result.
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