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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
Fully Articulated:
- - - ADV- DISADV- |
~3+ Blades
~Each blade can flap, feather, lead, lag independently ~Done through various hinges and dampers ADV- Smooth ride, and lots of lift DISADV- High maint. cost, storage, ground resonance |
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Semi-Rigid:
- - - - ADV DISADV |
~2 Blades
~Flap as a unit through a teetering hinge ~Feather through a feathering hinge ~Lead and lag forces minimized b/c the blades are underslung ADV- low maintenance cost, storage space DISADV- Low G/mast bumping, less lift, bumpy ride in turbulence |
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RIGID:
- - ADV DISADV |
~3+ blades
~Blades can feather thru a hinge, but flapping / lead & lag absorbed thru blade flexing ADV- low maint. cost (compared to fully articulated), VERY manueverable DISADV- requires hydraulics / computer, bumpy, expensive blades - made of carbon fiber |
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Torque is due to.....
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Newton's 3rd:
"every action..." |
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NOTAR
- - ADV DISADV |
~Uses fan-force air through slots on tail
~Developed by McDonnell Douglas Helicopter (MD520 and 600N) ADV- reduced vibrations, no tail rotor damage DISADV- expensive and complex |
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FENESTRON
- - ADV DISADV |
~Fan in Tail design
~Eurocopter trademark ADV: Safer in crowds, quieter, A lower susceptibility to foreign object damage, more efficient DISADV: An increase in weight and air resistance brought by the enclosure; Expensive |
http://en.wikipedia.org/wiki/Fenestron#Advantages
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Which Rotor System feathers thru a feathering hinge?
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SEMI-RIGID ROTOR SYSTEMS (Robinson- R22, and R44) (Bell206-JetRanger)
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http://www.copters.com/mech/mr_semi.html
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Underslung blades in the R22 minimize what?
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Lead and lag forces
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http://helicopterforum.verticalreference.com/topic/10094-question-about-underslung-rotor-systems/
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Which Rotor System absorbs flapping and lead and lag forces through blade flexing?
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RIGID rotor system
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What kind of landing gear is on the R22?
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Spring and Yield Skid type
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What is the powerplant of an R22?
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BII-O-360-J2A
-Beta II -Opposed 4 Cylinders -360 Cubic Inches -J2A type |
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What does a 2nd Class Medical allow, if you're under 40?
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12 months commercial and an additional 48 months private, for a total of 60 months (5 years)
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Which medical certificates gives you a total of 60 months of private pilot privileges?
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1st, 2nd and 3rd class *IF* under 40
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How long could you have Commercial privileges, with which Medical Certificate?
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12 months with a 2nd or 3rd class (any age)
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Which Medical Certificate has ATP privileges?
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1st class over 40 - for 6 months
1st class under 40 - for 12 months |
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A third class medical will give you what privileges?
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Private pilot for 24 months if over 40
Private pilot for 5 years if under 40 |
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4 Aircraft Documents required in a/c to operate legally
- - - - |
~Airworthiness Certificate
~Registration ~Operating limits/placards/owner's manual ~Weight and Balance |
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Airworthiness Certificate
- - - |
~FAA approved for flight
~Tail # specific ~Remains with a/c and valid as long as req'd maintenance is performed |
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Registration
- - - |
~Shows who a/c is registered to
~Certificate in a/c and sticker tail ~must be in tail |
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Operating Limits/Placards/Owner's Manual
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-POH: must be in a/c and accessible during flight
-Placards - reminder of operating limit |
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Weight and Balance
- - |
-Info for particular a/c, tail # specific
-Found in a/c POH |
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