| .. | .. |
|---|
| 38 | 38 | |
|---|
| 39 | 39 | #### Key Terms |
|---|
| 40 | 40 | |
|---|
| 41 | | -- **VS** = Stall Speed |
|---|
| 42 | | -- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 41 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 43 | 42 | - **rho** — ρ (rho) — air density |
|---|
| 44 | 43 | - **S** — Wing Area — total planform area of the wings |
|---|
| 45 | | -- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 44 | +- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 45 | +- **VS** = Stall Speed |
|---|
| 46 | 46 | - **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 47 | 47 | ### Q3: After one wing stalls and the nose drops, what is the correct technique to prevent a spin? ^t80q3 |
|---|
| 48 | 48 | |
|---|
| .. | .. |
|---|
| 160 | 160 | |
|---|
| 161 | 161 | #### Key Terms |
|---|
| 162 | 162 | |
|---|
| 163 | | -- **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 164 | 163 | n — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 165 | | - |
|---|
| 166 | 164 | ### Q9: What is the relationship between aspect ratio and induced drag? ^t80q9 |
|---|
| 167 | 165 | |
|---|
| 168 | 166 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q9) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q9) |
|---|
| .. | .. |
|---|
| 186 | 184 | - **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 187 | 185 | - **AR** — Aspect Ratio — ratio of wingspan² to wing area |
|---|
| 188 | 186 | - **e** — Oswald Efficiency Factor — wing efficiency factor (1.0 for ideal elliptical lift distribution) |
|---|
| 189 | | - |
|---|
| 190 | 187 | ### Q10: When the elevator trim tab is deflected downward, what is the resulting pitch tendency? ^t80q10 |
|---|
| 191 | 188 | |
|---|
| 192 | 189 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q10) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q10) |
|---|
| .. | .. |
|---|
| 223 | 220 | |
|---|
| 224 | 221 | #### Key Terms |
|---|
| 225 | 222 | |
|---|
| 226 | | -- **m** — mass of the aircraft |
|---|
| 227 | 223 | m — mass of the aircraft |
|---|
| 228 | | - |
|---|
| 229 | 224 | ### Q12: In straight and level flight, what happens to the required angle of attack as speed increases? ^t80q12 |
|---|
| 230 | 225 | |
|---|
| 231 | 226 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q12) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q12) |
|---|
| .. | .. |
|---|
| 245 | 240 | |
|---|
| 246 | 241 | #### Key Terms |
|---|
| 247 | 242 | |
|---|
| 248 | | -- **CL** = Lift Coefficient |
|---|
| 249 | | -- **ρ** (rho) — air density |
|---|
| 250 | 243 | - **L** — Lift — aerodynamic force acting perpendicular to the airflow |
|---|
| 251 | 244 | - **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 245 | +- **CL** = Lift Coefficient |
|---|
| 246 | +- **ρ** (rho) — air density |
|---|
| 252 | 247 | - **S** — Wing Area — total planform area of the wings |
|---|
| 253 | 248 | ### Q13: What is the function of wing fences or boundary layer fences? ^t80q13 |
|---|
| 254 | 249 | |
|---|
| .. | .. |
|---|
| 321 | 316 | #### Key Terms |
|---|
| 322 | 317 | |
|---|
| 323 | 318 | - **IAS** = Indicated Airspeed |
|---|
| 319 | +- **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 320 | +- **ρ** (rho) — air density |
|---|
| 324 | 321 | - **TAS** = True Airspeed |
|---|
| 325 | 322 | - **ρ₀** — air density at sea level (ISA: 1.225 kg/m³) |
|---|
| 326 | | -- **ρ** (rho) — air density |
|---|
| 327 | | -- **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 328 | 323 | ### Q17: What does the term "load factor" describe? ^t80q17 |
|---|
| 329 | 324 | |
|---|
| 330 | 325 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q17) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q17) |
|---|
| .. | .. |
|---|
| 344 | 339 | |
|---|
| 345 | 340 | #### Key Terms |
|---|
| 346 | 341 | |
|---|
| 347 | | -- **L** — Lift — aerodynamic force acting perpendicular to the airflow |
|---|
| 348 | | -- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 349 | 342 | - **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 343 | +- **L** — Lift — aerodynamic force acting perpendicular to the airflow |
|---|
| 350 | 344 | - **g** — gravitational acceleration (9.81 m/s²) |
|---|
| 351 | | - |
|---|
| 345 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 352 | 346 | ### Q18: How does increasing aircraft weight affect the best glide ratio? ^t80q18 |
|---|
| 353 | 347 | |
|---|
| 354 | 348 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q18) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q18) |
|---|
| .. | .. |
|---|
| 419 | 413 | |
|---|
| 420 | 414 | #### Key Terms |
|---|
| 421 | 415 | |
|---|
| 422 | | -- **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 423 | | -CL = Lift Coefficient |
|---|
| 416 | +CL — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 424 | 417 | ### Q22: What is the primary function of an elevator trim tab? ^t80q22 |
|---|
| 425 | 418 | |
|---|
| 426 | 419 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q22) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q22) |
|---|
| .. | .. |
|---|
| 457 | 450 | |
|---|
| 458 | 451 | #### Key Terms |
|---|
| 459 | 452 | |
|---|
| 460 | | -- **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 461 | 453 | n — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 462 | 454 | |
|---|
| 463 | 455 | ### Q24: What is the centre of pressure of an aerofoil? ^t80q24 |
|---|
| .. | .. |
|---|
| 500 | 492 | |
|---|
| 501 | 493 | #### Key Terms |
|---|
| 502 | 494 | |
|---|
| 503 | | -- **VNE** — Never Exceed Speed |
|---|
| 504 | | -VNE = Never Exceed Speed |
|---|
| 495 | +VNE — Never Exceed Speed |
|---|
| 505 | 496 | ### Q26: What is the Bernoulli principle as applied to an aerofoil? ^t80q26 |
|---|
| 506 | 497 | |
|---|
| 507 | 498 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q26) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q26) |
|---|
| .. | .. |
|---|
| 592 | 583 | |
|---|
| 593 | 584 | #### Key Terms |
|---|
| 594 | 585 | |
|---|
| 595 | | -- **AoA** = Angle of Attack |
|---|
| 596 | 586 | - **CL** = Lift Coefficient |
|---|
| 587 | +- **AoA** = Angle of Attack |
|---|
| 597 | 588 | - **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 598 | 589 | ### Q31: How does the flap position affect the stall speed? ^t80q31 |
|---|
| 599 | 590 | |
|---|
| .. | .. |
|---|
| 614 | 605 | |
|---|
| 615 | 606 | #### Key Terms |
|---|
| 616 | 607 | |
|---|
| 617 | | -- **VS** = Stall Speed |
|---|
| 618 | | -- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 608 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 619 | 609 | - **ρ** (rho) — air density |
|---|
| 620 | 610 | - **S** — Wing Area — total planform area of the wings |
|---|
| 621 | | -- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 611 | +- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 612 | +- **VS** = Stall Speed |
|---|
| 622 | 613 | - **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 623 | 614 | ### Q32: What is the purpose of a laminar-flow aerofoil? ^t80q32 |
|---|
| 624 | 615 | |
|---|
| .. | .. |
|---|
| 656 | 647 | |
|---|
| 657 | 648 | #### Key Terms |
|---|
| 658 | 649 | |
|---|
| 659 | | -- **IAS** = Indicated Airspeed |
|---|
| 660 | 650 | - **TAS** = True Airspeed |
|---|
| 651 | +- **IAS** = Indicated Airspeed |
|---|
| 661 | 652 | ### Q34: What is the difference between static stability and dynamic stability? ^t80q34 |
|---|
| 662 | 653 | |
|---|
| 663 | 654 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q34) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q34) |
|---|
| .. | .. |
|---|
| 764 | 755 | |
|---|
| 765 | 756 | #### Explanation |
|---|
| 766 | 757 | |
|---|
| 767 | | -Induced drag decreases monotonically with increasing airspeed in level flight: D_induced = 2W^2 / (rho * V^2 * S^2 * pi * AR * e). As V increases, induced drag continuously falls — there is no minimum/maximum within the normal flight envelope. Parasite drag (not induced drag) has the U-shaped curve described in B/C. Total drag has a minimum at the speed where induced drag equals parasite drag; induced drag itself simply decreases with speed. |
|---|
| 758 | +Induced drag decreases monotonically with increasing airspeed in level flight: D_induced = 2W^2 / (rho * V^2 * S^2 * pi * AR * e). As V increases, induced drag continuously falls — there is no minimum/maximum within the normal flight envelope. Parasite drag (not induced drag) has the U-shaped curve described in options B and C. Total drag has a minimum at the speed where induced drag equals parasite drag; induced drag itself simply decreases with speed. |
|---|
| 768 | 759 | |
|---|
| 769 | 760 | #### Key Terms |
|---|
| 770 | 761 | |
|---|
| 771 | 762 | - **D_induced** — Induced Drag — drag created as a by-product of generating lift |
|---|
| 763 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 772 | 764 | - **rho** — ρ (rho) — air density |
|---|
| 765 | +- **V** — Velocity / Airspeed |
|---|
| 766 | +- **S** — Wing Area — total planform area of the wings |
|---|
| 773 | 767 | - **AR** — Aspect Ratio — ratio of wingspan² to wing area |
|---|
| 774 | 768 | - **e** — Oswald Efficiency Factor — wing efficiency factor (1.0 for ideal elliptical lift distribution) |
|---|
| 775 | | -- **S** — Wing Area — total planform area of the wings |
|---|
| 776 | | -- **V** — Velocity / Airspeed |
|---|
| 777 | | -- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 778 | | - |
|---|
| 779 | 769 | ### Q40: Which types of drag make up total drag? ^t80q40 |
|---|
| 780 | 770 | |
|---|
| 781 | 771 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q40) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q40) |
|---|
| .. | .. |
|---|
| 816 | 806 | #### Key Terms |
|---|
| 817 | 807 | |
|---|
| 818 | 808 | - **AoA** = Angle of Attack |
|---|
| 819 | | -- **CD** = Drag Coefficient |
|---|
| 820 | 809 | - **CL** = Lift Coefficient |
|---|
| 810 | +- **CD** = Drag Coefficient |
|---|
| 821 | 811 | ### Q42: To recover from a stall, it is essential to ^t80q42 |
|---|
| 822 | 812 | |
|---|
| 823 | 813 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q42) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q42) |
|---|
| .. | .. |
|---|
| 857 | 847 | |
|---|
| 858 | 848 | #### Key Terms |
|---|
| 859 | 849 | |
|---|
| 860 | | -- **AoA** = Angle of Attack |
|---|
| 861 | | -- **CD** = Drag Coefficient |
|---|
| 862 | 850 | - **CL** = Lift Coefficient |
|---|
| 851 | +- **AoA** = Angle of Attack |
|---|
| 863 | 852 | - **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 853 | +- **CD** = Drag Coefficient |
|---|
| 864 | 854 | ### Q44: The critical angle of attack ^t80q44 |
|---|
| 865 | 855 | |
|---|
| 866 | 856 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q44) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q44) |
|---|
| .. | .. |
|---|
| 880 | 870 | |
|---|
| 881 | 871 | #### Key Terms |
|---|
| 882 | 872 | |
|---|
| 883 | | -- **AoA** = Angle of Attack |
|---|
| 884 | | -- **VS** = Stall Speed |
|---|
| 885 | | -- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 873 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 886 | 874 | - **rho** — ρ (rho) — air density |
|---|
| 887 | 875 | - **S** — Wing Area — total planform area of the wings |
|---|
| 888 | | -- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 876 | +- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 877 | +- **AoA** = Angle of Attack |
|---|
| 878 | +- **VS** = Stall Speed |
|---|
| 889 | 879 | - **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 890 | 880 | ### Q45: What leads to a lower stall speed Vs (IAS)? ^t80q45 |
|---|
| 891 | 881 | |
|---|
| .. | .. |
|---|
| 906 | 896 | |
|---|
| 907 | 897 | #### Key Terms |
|---|
| 908 | 898 | |
|---|
| 909 | | -- **IAS** = Indicated Airspeed |
|---|
| 910 | | -- **TAS** = True Airspeed |
|---|
| 911 | | -- **VS** = Stall Speed |
|---|
| 912 | | -- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 913 | | -- **rho** — ρ (rho) — air density |
|---|
| 914 | 899 | - **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 915 | | -- **S** — Wing Area — total planform area of the wings |
|---|
| 916 | | -- **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 900 | +- **TAS** = True Airspeed |
|---|
| 901 | +- **IAS** = Indicated Airspeed |
|---|
| 917 | 902 | - **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 903 | +- **rho** — ρ (rho) — air density |
|---|
| 904 | +- **S** — Wing Area — total planform area of the wings |
|---|
| 905 | +- **CL_max** — Maximum Lift Coefficient — highest CL the wing can produce before stalling |
|---|
| 906 | +- **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 907 | +- **VS** = Stall Speed |
|---|
| 918 | 908 | - **CL** — Lift Coefficient — dimensionless measure of aerodynamic lift |
|---|
| 919 | 909 | ### Q46: Which statement about a spin is correct? ^t80q46 |
|---|
| 920 | 910 | |
|---|
| .. | .. |
|---|
| 1023 | 1013 | |
|---|
| 1024 | 1014 | #### Key Terms |
|---|
| 1025 | 1015 | |
|---|
| 1026 | | -ISA = International Standard Atmosphere |
|---|
| 1016 | +- **ISA** = International Standard Atmosphere |
|---|
| 1017 | +- **W** — Weight — force due to gravity acting on the aircraft (W = m × g) |
|---|
| 1027 | 1018 | ### Q52: During a sideslip, the permitted flap position is ^t80q52 |
|---|
| 1028 | 1019 | |
|---|
| 1029 | 1020 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q52) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q52) |
|---|
| .. | .. |
|---|
| 1094 | 1085 | |
|---|
| 1095 | 1086 | #### Key Terms |
|---|
| 1096 | 1087 | |
|---|
| 1097 | | -- **ICAO** = International Civil Aviation Organization |
|---|
| 1098 | 1088 | - **ISA** = International Standard Atmosphere |
|---|
| 1089 | +- **ICAO** = International Civil Aviation Organization |
|---|
| 1099 | 1090 | ### Q56: At approximately what altitude does atmospheric pressure fall to half its sea-level value? ^t80q56 |
|---|
| 1100 | 1091 | |
|---|
| 1101 | 1092 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q56) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q56) |
|---|
| .. | .. |
|---|
| 1178 | 1169 | |
|---|
| 1179 | 1170 | #### Key Terms |
|---|
| 1180 | 1171 | |
|---|
| 1181 | | -- **TAS** = True Airspeed |
|---|
| 1182 | | -- **ρ** (rho) — air density |
|---|
| 1183 | 1172 | - **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 1173 | +- **ρ** (rho) — air density |
|---|
| 1174 | +- **TAS** = True Airspeed |
|---|
| 1184 | 1175 | ### Q60: What is the name of the point about which, when the angle of attack changes, the pitching moment around the lateral axis does not vary? ^t80q60 |
|---|
| 1185 | 1176 | |
|---|
| 1186 | 1177 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q60) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q60) |
|---|
| .. | .. |
|---|
| 1200 | 1191 | |
|---|
| 1201 | 1192 | #### Key Terms |
|---|
| 1202 | 1193 | |
|---|
| 1203 | | -- **CG** — Centre of Gravity |
|---|
| 1204 | | -CG = Centre of Gravity |
|---|
| 1194 | +CG — Centre of Gravity |
|---|
| 1205 | 1195 | ### Q61: The angle between the aerofoil chord line and the aircraft's longitudinal axis is called ^t80q61 |
|---|
| 1206 | 1196 | |
|---|
| 1207 | 1197 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q61) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q61) |
|---|
| .. | .. |
|---|
| 1289 | 1279 | |
|---|
| 1290 | 1280 | #### Key Terms |
|---|
| 1291 | 1281 | |
|---|
| 1292 | | -- **CD** = Drag Coefficient |
|---|
| 1293 | | -- **ρ** (rho) — air density |
|---|
| 1294 | 1282 | - **S** — Wing Area — total planform area of the wings |
|---|
| 1295 | 1283 | - **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 1284 | +- **ρ** (rho) — air density |
|---|
| 1296 | 1285 | - **D** — Drag |
|---|
| 1286 | +- **CD** = Drag Coefficient |
|---|
| 1297 | 1287 | ### Q66: On the speed polar, which tangent touches the curve at the point of minimum sink rate? ^t80q66 |
|---|
| 1298 | 1288 | |
|---|
| 1299 | 1289 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q66) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q66) |
|---|
| .. | .. |
|---|
| 1341 | 1331 | |
|---|
| 1342 | 1332 | #### Key Terms |
|---|
| 1343 | 1333 | |
|---|
| 1344 | | -- **CL** = Lift Coefficient |
|---|
| 1345 | 1334 | - **D_induced** — Induced Drag — drag created as a by-product of generating lift |
|---|
| 1335 | +- **CL** = Lift Coefficient |
|---|
| 1346 | 1336 | - **AR** — Aspect Ratio — ratio of wingspan² to wing area |
|---|
| 1347 | 1337 | - **e** — Oswald Efficiency Factor — wing efficiency factor (1.0 for ideal elliptical lift distribution) |
|---|
| 1348 | | -- **S** — Wing Area — total planform area of the wings |
|---|
| 1349 | 1338 | - **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 1339 | +- **S** — Wing Area — total planform area of the wings |
|---|
| 1350 | 1340 | ### Q68: How does the minimum speed of an aircraft in a level turn at 45-degree bank compare to straight-and-level flight? ^t80q68 |
|---|
| 1351 | 1341 | |
|---|
| 1352 | 1342 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q68) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q68) |
|---|
| .. | .. |
|---|
| 1366 | 1356 | |
|---|
| 1367 | 1357 | #### Key Terms |
|---|
| 1368 | 1358 | |
|---|
| 1369 | | -- **VS** = Stall Speed |
|---|
| 1370 | 1359 | - **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 1360 | +- **VS** = Stall Speed |
|---|
| 1371 | 1361 | ### Q69: Adverse yaw is caused by ^t80q69 |
|---|
| 1372 | 1362 | |
|---|
| 1373 | 1363 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q69) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q69) |
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| .. | .. |
|---|
| 1404 | 1394 | |
|---|
| 1405 | 1395 | #### Key Terms |
|---|
| 1406 | 1396 | |
|---|
| 1407 | | -- **CAS** = Calibrated Airspeed |
|---|
| 1408 | | -- **IAS** = Indicated Airspeed |
|---|
| 1409 | 1397 | - **TAS** = True Airspeed |
|---|
| 1398 | +- **IAS** = Indicated Airspeed |
|---|
| 1399 | +- **CAS** = Calibrated Airspeed |
|---|
| 1410 | 1400 | ### Q71: The speed range authorised for the use of slotted flaps is: ^t80q71 |
|---|
| 1411 | 1401 | |
|---|
| 1412 | 1402 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q71) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q71) |
|---|
| .. | .. |
|---|
| 1819 | 1809 | |
|---|
| 1820 | 1810 | #### Key Terms |
|---|
| 1821 | 1811 | |
|---|
| 1812 | +- **D** — Drag |
|---|
| 1822 | 1813 | - **CD** = Drag Coefficient |
|---|
| 1823 | 1814 | - **rho** — ρ (rho) — air density |
|---|
| 1824 | 1815 | - **S** — Wing Area — total planform area of the wings |
|---|
| 1825 | | -- **D** — Drag |
|---|
| 1826 | 1816 | ### Q93: What is the origin of induced drag on a wing? ^t80q93 |
|---|
| 1827 | 1817 | |
|---|
| 1828 | 1818 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q93) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q93) |
|---|
| .. | .. |
|---|
| 1867 | 1857 | |
|---|
| 1868 | 1858 | #### Key Terms |
|---|
| 1869 | 1859 | |
|---|
| 1870 | | -- **ICAO** = International Civil Aviation Organization |
|---|
| 1871 | 1860 | - **ISA** = International Standard Atmosphere |
|---|
| 1861 | +- **ICAO** = International Civil Aviation Organization |
|---|
| 1872 | 1862 | ### Q95: In the aerofoil diagram below, which line represents the mean camber line? ^t80q95 |
|---|
| 1873 | 1863 | |
|---|
| 1874 | 1864 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q95) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q95) |
|---|
| .. | .. |
|---|
| 1934 | 1924 | |
|---|
| 1935 | 1925 | #### Key Terms |
|---|
| 1936 | 1926 | |
|---|
| 1937 | | -- **AoA** = Angle of Attack |
|---|
| 1938 | 1927 | - **VNE** = Never Exceed Speed |
|---|
| 1928 | +- **AoA** = Angle of Attack |
|---|
| 1939 | 1929 | ### Q98: At what condition does airflow separation from an aerofoil occur? ^t80q98 |
|---|
| 1940 | 1930 | |
|---|
| 1941 | 1931 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q98) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q98) |
|---|
| .. | .. |
|---|
| 2007 | 1997 | |
|---|
| 2008 | 1998 | #### Key Terms |
|---|
| 2009 | 1999 | |
|---|
| 2010 | | -- **CAS** = Calibrated Airspeed |
|---|
| 2011 | | -- **IAS** = Indicated Airspeed |
|---|
| 2012 | | -- **ISA** = International Standard Atmosphere |
|---|
| 2013 | 2000 | - **TAS** = True Airspeed |
|---|
| 2001 | +- **IAS** = Indicated Airspeed |
|---|
| 2002 | +- **CAS** = Calibrated Airspeed |
|---|
| 2003 | +- **ISA** = International Standard Atmosphere |
|---|
| 2014 | 2004 | ### Q101: A shift of the centre of gravity is caused by: ^t80q101 |
|---|
| 2015 | 2005 | |
|---|
| 2016 | 2006 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q101) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q101) |
|---|
| .. | .. |
|---|
| 2125 | 2115 | |
|---|
| 2126 | 2116 | #### Key Terms |
|---|
| 2127 | 2117 | |
|---|
| 2128 | | -- **rho** — ρ (rho) — air density |
|---|
| 2129 | 2118 | - **q** — dynamic pressure (q = ½ × ρ × V²) |
|---|
| 2119 | +- **rho** — ρ (rho) — air density |
|---|
| 2130 | 2120 | - **D** — Drag |
|---|
| 2131 | | - |
|---|
| 2132 | 2121 | ### Q106: Roll stability is influenced by: ^t80q106 |
|---|
| 2133 | 2122 | |
|---|
| 2134 | 2123 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q106) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q106) |
|---|
| .. | .. |
|---|
| 2198 | 2187 | |
|---|
| 2199 | 2188 | #### Key Terms |
|---|
| 2200 | 2189 | |
|---|
| 2201 | | -- **D** — Drag |
|---|
| 2202 | 2190 | D — Drag |
|---|
| 2203 | | - |
|---|
| 2204 | 2191 | ### Q109: Barometric pressure in the Earth's atmosphere has the characteristic of: ^t80q109 |
|---|
| 2205 | 2192 | |
|---|
| 2206 | 2193 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q109) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q109) |
|---|
| .. | .. |
|---|
| 2550 | 2537 | |
|---|
| 2551 | 2538 | #### Key Terms |
|---|
| 2552 | 2539 | |
|---|
| 2553 | | -- **VS** = Stall Speed |
|---|
| 2554 | 2540 | - **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 2555 | 2541 | - **D** — Drag |
|---|
| 2542 | +- **VS** = Stall Speed |
|---|
| 2556 | 2543 | ### Q125: The pressure equalisation between the upper and lower wing surfaces results in ^t80q125 |
|---|
| 2557 | 2544 | |
|---|
| 2558 | 2545 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q125) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q125) |
|---|
| .. | .. |
|---|
| 2617 | 2604 | |
|---|
| 2618 | 2605 | #### Key Terms |
|---|
| 2619 | 2606 | |
|---|
| 2620 | | -- **CD** = Drag Coefficient |
|---|
| 2621 | 2607 | - **CL** = Lift Coefficient |
|---|
| 2608 | +- **CD** = Drag Coefficient |
|---|
| 2622 | 2609 | ### Q128: Any arbitrarily shaped body placed in an airflow (v > 0) always produces ^t80q128 |
|---|
| 2623 | 2610 | |
|---|
| 2624 | 2611 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q128) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q128) |
|---|
| .. | .. |
|---|
| 2957 | 2944 | |
|---|
| 2958 | 2945 | - **n** — Load Factor (ratio of lift to weight: n = L/W) |
|---|
| 2959 | 2946 | - **D** — Drag |
|---|
| 2960 | | - |
|---|
| 2961 | 2947 | ### Q143: On a Touring Motor Glider (TMG), which engine arrangement produces the least drag? ^t80q143 |
|---|
| 2962 | 2948 | |
|---|
| 2963 | 2949 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q143) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q143) |
|---|
| .. | .. |
|---|
| 3113 | 3099 | |
|---|
| 3114 | 3100 | #### Key Terms |
|---|
| 3115 | 3101 | |
|---|
| 3116 | | -- **D** — Drag |
|---|
| 3117 | 3102 | D — Drag |
|---|
| 3118 | | - |
|---|
| 3119 | 3103 | ### Q150: On the aerofoil diagram, what does point number 3 represent? ^t80q150 |
|---|
| 3120 | 3104 | |
|---|
| 3121 | 3105 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q150) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q150) |
|---|
| .. | .. |
|---|
| 3314 | 3298 | |
|---|
| 3315 | 3299 | #### Key Terms |
|---|
| 3316 | 3300 | |
|---|
| 3317 | | -- **D** — Drag |
|---|
| 3318 | 3301 | D — Drag |
|---|
| 3319 | | - |
|---|
| 3320 | 3302 | ### Q159: "Longitudinal stability" refers to stability around which axis? ^t80q159 |
|---|
| 3321 | 3303 | |
|---|
| 3322 | 3304 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q159) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q159) |
|---|
| .. | .. |
|---|
| 3361 | 3343 | |
|---|
| 3362 | 3344 | #### Key Terms |
|---|
| 3363 | 3345 | |
|---|
| 3364 | | -- **D** — Drag |
|---|
| 3365 | 3346 | D — Drag |
|---|
| 3366 | | - |
|---|
| 3367 | 3347 | ### Q161: What phenomenon is known as adverse yaw? ^t80q161 |
|---|
| 3368 | 3348 | |
|---|
| 3369 | 3349 | [DE](../SPL%20Exam%20Questions%20DE/80%20-%20Grundlagen%20des%20Fliegens.md#^t80q161) · [FR](../SPL%20Exam%20Questions%20FR/80%20-%20Principes%20du%20vol.md#^t80q161) |
|---|