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Airframe-Answer-Key.Pdf ii No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of the publisher. Cover: Structural reconstruction of an IAI Westwind fuselage. Photo taken in cooperation with Straight Flight, Inc., Centennial, Colorado. Jeppesen 55 Inverness Drive East Englewood, CO 80112-5498 Web Site: www.jeppesen.com Email: [email protected] Copyright © Jeppesen All Rights Reserved. Published 2009 ANSWERS 28. Pratt 28. down 29. Warren 29. drag 30. conventional 30. increase 31. tricycle 31. slotted 32. parasite 32. Fowler 33. pressure 33. slot, aileron 34. fins 34. a. hydraulically AIRCRAFT 35. cowl flaps b. electrically 36. open 35. camber STRUCTURAL 37. a. beneath the wing 36. root ASSEMBLY AND b. at the rear fuselage 37. at the wing root 38. vortices RIGGING SECTION 1B 39. high, low 40. Winglets SECTION 1A 1. a. longitudinal, roll 41. wing fence b. lateral, pitch 42. canard 1. truss c. vertical, yaw 43. irreversible 2. stressed-skin, monocoque 2. longitudinal (roll) 44. a. ailerons 3. semi-monocoque 3. lateral (pitch) b. flight spoilers 4. semi-monocoque 4. vertical (yaw) 45. two 5. fail-safe 5. rudder 46. yaw damper 6. attack 6. a. static 47. a. Kreuger flaps 7. low b. dynamic b. variable camber 8. ribs 7. a. longitudinal (pitch) leading edge flaps 9. behind b. lateral (roll) 48. Type Certificate Data 10. truss c. vertical (yaw) Sheets 11. drag 8. stabilizer 49. washed-out 12. cantilever 9. elevators 50. droop 13. chemical, electrochemical 10. downward 51. a. 1 X 7 or 1 X 19 14. stiffness 11. up b. 7 X 7 15. ahead of 12. rearward c. 7 X 19 16. corrugating 13. down 52. a. 75% 17. a. ailerons 14. up b. 100% b. rudder 15. balance 53. 60% c. elevator 16. aileron drag 54. a. wear 18. inboard 17. up b. corrosion 19. spoiler 18. Frise 55. may not 20. performance, drag, 19. interconnect springs 56. a. 92 wingtip vortices 20. right b. 52 21. Vortex generators 21. trim tab c. 70 22. empennage 22. opposite d. 25 23. dorsal 23. anti-servo 57. three 24. stabilator 24. same 58. four 25. anti-servo 25. opposite 59. is not 26. ruddervators 26. high 60. positive 27. fuselage 27. jackscrew 61. decalage A-2 Answers 62. landing 38. a. chordwise 21. a. –F 63. lower b. spanwise b. –O 64. cycle 39. a. marking stick or flag c. –T4 65. a. metal fatigue b. strobe light d. –T3 b. corrosion c. infrared light e. –T6 66. tests and inspection, 40. on the ground f. –H12 aging aircraft program 41. in-flight g. –H18 42. fan 22. lighter SECTION 1C 43. collective 23. a. cracks easily 44. a. direct-shaft b. corrodes easily 1. autorotational b. free turbine c. burns readily (autorotative) 45. clutch 24. strength, weight 2. vertical tail rotor 46. freewheeling 25. high 3. a. fore & aft counter- a. firewalls rotating rotors b. exhaust systems b. co-axial counter- 26. a. high strength rotating rotors. b. light weight 4. feather c. stiffness 5. a. gravity 27. a. cladding with pure b. centrifugal force aluminum c. lift b. covering with an d. drag SHEET METAL impenetrable oxide 6. symmetrical film 7. a. rigidity in space STRUCTURES c. covering with primer b. precession and paint 8. Precession SECTION 2A 28. a. An area of electrode 9. Coriolis effect potential difference 10. underslung 1. aluminum b. A conductive path 11. less than one diameter 2. a. monocoque between these areas. 12. Out of Ground Effect b. semi-monocoque c. An electrolyte covering 13. In Ground Effect 3. a. strength the surface 14. advancing b. stiffness 29. will not 15. forward c. shape 30. a. electrolytically 16. flap, feather 4. a. tension b. chemically 17. retreating b. compression 18. high c. torsion SECTION 2B 19. translational d. bending 20. autorotational e. shear 1. should not 21. downward 5. compressive 2. should not, the part will 22. upward 6. tensile crack when it is bent 23. collective 7. compression, tension 3. Carbon infuses into the 24. correlator, governor 8. a. tensile (tension) metal, which will cause the 25. collective b. shear part to weaken and crack. 26. cyclic 9. shear 4. are 27. synchronized elevator 10. concentrate, cross- 5. transfer 28. irreversible sectional area 6. pin 29. pedals 11. stop-drill 7. nibbler 30. fenestron 12. are 8. a. green 31. unstable 13. a. copper b. red 32. a. stabilizer bar b. copper c. yellow b. offset flapping hinges c. magnesium 9. countersunk c. stability d. zinc 10. squaring shear augmentation 14. 1xxx 11. a. tip 33. beat 15. 2024 b. body 34. low 16. pure aluminum, rolled c. shank 35. vertical 17. scratches, abrasions 12. 30 36. lateral 18. solution 13. box 37. a. statically 19. precipitation 14. a. silver b. dynamically 20. softened b. copper Answers A-3 c. black 21. a. 0.420” 7. a. pot life d. brass b. 0.219” b. open assembly time 15. hole finder c. 0.328” c. closed assembly time 16. chip chaser d. 0.214” d. pressing time 17. 1/16th, 1/32nd e. 0.196” 8. Mahogany 18. a. countersunk 22. stretched 9. lowest b. universal 23. may 10. rot-inhibiting c. round 24. flanged 11. varnish d. flat 25. joggling 12. rotted 19. countersunk, dimpled 13. may not 20. a. 1100 SECTION 2D 14. 1/10th b. 2117 15. 5:1 c. 2017 1. burnishing d. 2024 2. Structural Repair SECTION 3B e. 5056 3. data, FAA approved 21. a. 1100 4. Inspection Authorization 1. a. strength and stiffness b. 5056 5. 337 can be customized c. 2117 6. Provides a more gradual b. high strength-to-weight d. 2017 change for stresses to ratio e. 2024 enter and leave the repair. c. can be formed into f. 7050 7. 1/8th (same size) complex curves 22. B 8. An aircraft grade bolt and 2. a. fiber 23. heat treated, icebox self-locking nut. b. matrix 24. blind 9. inboard c. interface or boundary 25. rivnut 10. Slip roll former. between elements 26. Dzus, Airloc, Camlock 11. wet 3. a. S-glass 12. removing the damaged b. E-glass SECTION 2C area and installing a new 4. Aramid piece of skin. 5. high stress, vibration 1. 1 1/2 13. add 6. compressive, galvanic 2. two 14. location, approved 7. ceramic 3. three, ten to twelve 15. sealant 8. parallel 4. 75% 9. warp 5. a. #40 10. selvage b. #30 11. bias c. #21 12. uni-directional d. #11 13. mats 6. 100 14. more 7. coin 15. a. thermoplastic 8. hot b. thermosetting 9. one-shot WOOD, COMPOSITE, 16. little, must be 10. inside 17. will, will not 11. a. three AND TRANSPARENT 18. resin, catalyst, catalyst b. two PLASTIC 19. resin c. one 20. frozen 12. across STRUCTURES 21. shelf, may not 13. a. 0 22. Glass microballoons b. 2-4t (.064”-.128”) SECTION 3A 23. chopped fibers, flox c. 4-6t (.256”-.384”) 24. a. honeycomb 14. mold 1. Sitka Spruce b. foam 15. setback 2. a. cut of the wood c. wood 16. BR + MT b. slope of the grain 25. can 17. K-value or K-factor c. number of growth 26. epoxy 18. (K) times (R+T) rings 27. Urethane 19. a. 0.290” 3. quarter, shrinkage 28. are b. 0.120” 4. 1 to 15 29. Pot, shelf c. 0.700” 5. a. Resorcinol glue 30. Material Safety Data Sheets d. 0.625” b. Epoxy resin glue 31. a. respirator 20. bend allowance 6. should not b. goggles A-4 Answers c. gloves b. Heat curing. 5. 5,600 to 6,300 32. fire, well ventilated 60. is not 6. infrared, ultraviolet, burn 33. a. Methyl-Ethyl-Ketone 61. heating blankets 7. a. arc welding helmet b. Acetone 62. Step b. gloves 34. a. Compression 63. Parting, release c. proper clothing molding 64. Bleeder materials 8. stick b. Vacuum bagging 65. should not 9. gas metal c. Filament winding 66. potting 10. MIG d. Wet lay-up 67. potted 11. tungsten inert gas, TIG e. Fiberglass lay-up 68. delamination 12. tungsten 35. a. Seal the surface. 69. temporary, permanent 13. 11,000 b. Create a moisture an 70. balsa wood, composite 14. straight ultra-violet light honeycomb 15. a. spot barrier. b. seam 36. a. Aluminum wires SECTION 3C 16. a. current woven into the top b. pressure layer. 1. a. Cellulose acetate base c. dwell time b. Aluminum screens b. Acrylic 17. a. butt under the top layer. 2. a. Lucite b. tee c. Aluminum foil b. Plexiglas c. lap bonded to the outer 3. will not d. corner layer. 4. C e. edge d. Aluminum flame 5. crazed 18. a. uniform width sprayed onto the 6. unsatisfactory b. good penetration component. 7. a. stretch forming c. adequate reinforcement 37. a. Visual inspection b. using male and d. uniform ripples b. Tap testing female dies 19. 100 c. Ultrasonic testing c. vacuum forming 20. capillary 38. tap test d. vacuum forming with 21. b 39. ultrasonic tester female dies 22. tin, lead 40. may 8. slowly, overheating 23. silver 41. Thermography 9. 150 42. Aramid 10. Ethylene dichloride SECTION 4B 43. backed up 11. does 44. should not 12. heat treating 1. does not 45. Carbide 13. brass safety wire, screws, 2. hydrogen 46. respirators washers 3. cleaner 47. Aramid 14. mild soap 4. carburizing 48. should not 15. 1/8th, expansion 5.
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