Every number on the FAA A&P General, with its source
59 exact values pulled out of the study guides and put in one place, each one carrying the statute, rule or standard it comes from. These are the figures the exam turns on and the ones people lose points to — the difference between 14 days and 21 days is a whole question.
59 values
Electricity and Electronics
| Ohm's law | E = I × R |
| Power | P = I × E = I²R = E²/R |
| Two resistors in parallel | (R1 × R2) ÷ (R1 + R2) |
| Inductive reactance | XL = 2πfL (rises with frequency) |
| Capacitive reactance | XC = 1 ÷ 2πfC (falls with frequency) |
| True power | Apparent power × power factor |
| Lead-acid, high charge | 1.300 to 1.275 specific gravity |
| Hydrometer temperature correction | Not needed from 70 °F to 90 °F |
| Ni-Cad vent deposits | Potassium carbonate; distilled water |
| Resistor gold band | ±5% tolerance (silver ±10%) |
Cleaning, Corrosion and Finishes
| Most common form | Uniform surface corrosion |
| Filiform humidity range | About 78-90%; store below 70% |
| Exfoliation | Most often on extruded sections |
| Most anodic common metal | Magnesium |
| Concentration cell corrodes at | Lowest oxygen / metal ion concentration |
| Treatment order | Remove, neutralize, restore film, coat |
| Shot peening | Compressive surface stress resists stress corrosion |
| Fisheyes | Contamination such as silicone |
| Blushing | High humidity; butyl alcohol retarder |
| Registration marks, fixed-wing | At least 12 inches high (45.29) |
Regulations, Forms and Records
| Minimum age | 18 (65.71) |
| All tests passed within | 24 months (65.71) |
| Experience, one rating / both | 18 / 30 months (65.77) |
| Retest after failure | 30 days, or a signed statement (65.19) |
| Recent experience | 6 months in the last 24 (65.83) |
| Address change | Within 30 days (65.21) |
| IA expires | March 31, odd-numbered years (65.92) |
| 100-hour overflight | Up to 10 hours en route; counts against next 100 |
| Form 337 to the FAA | Registration Branch, Oklahoma City, within 48 hours |
| Malfunction or Defect Report | FAA Form 8010-4 |
Ground Operations, Safety and Human Factors
| Class B fire | Flammable liquids |
| Class D fire | Flammable metal; no water or CO2 |
| AVGAS 100LL | Blue |
| AVGAS 100 | Green |
| Jet fuel marking | Black on piping |
| No fueling near ground radar | Within 500 feet |
| Engine start fireguard | CO2, at least 5 lb |
| Flashing white (tower) | Return to starting point |
| PEAR | People, Environment, Actions, Resources |
| Primary cause of fatigue | Lack of sleep |
Hardware, Materials and Fluid Lines
| Two raised dashes (AN bolt) | Aluminum alloy |
| Triangle on bolt head | Close tolerance |
| Elastic stop nut limit | 250 °F |
| Safety wire pigtail | 1/4 to 1/2 inch (3-6 twists) |
| Double-twist series, widely spaced | 3 maximum |
| Torque with extension | Desired × L ÷ (L + E) |
| Field rivet | 2117-T (AD) |
| Aircraft flare angle | 35° to 37° |
| Double flare required | Soft aluminum, 3/8 inch OD and under |
| Flexible hose slack | 5 to 8 percent |
Weight and Balance, with the Math Behind It
| Moment | Weight × arm (in-lb) |
| Center of gravity | Total moment ÷ total weight |
| Percent of MAC | (CG − LEMAC) ÷ MAC × 100 |
| Minimum fuel (piston) | METO hp ÷ 2, in pounds |
| Ballast | Weight × distance out ÷ distance ballast-to-desired CG |
| Useful load | Max gross − empty weight |
| Circle area | π × r² |
| Compression ratio | Volume at BDC ÷ volume at TDC |
| Inch to millimeter | 1 in = 25.4 mm |