WX 301 ADVANCED CERTIFICATION
PAPER 2026 ACCURATE SOLUTIONS
GRADED A+
◉ difference between station pressure and sea level pressure.
Answer: station pressure: the presssure measured directly by a
barometer. Minor corrections for temperature and latitude
Sea level pressure: the station pressure corrected for altitude.
Multiple ways to correct for altitude
◉ Explain the difference between altimeter setting and "actual" sea
level pressure. Answer: altimeter setting: FAA uses a constant
"standard Atmosphere. Indepent of weather and location
Sea Level pressure: NWS uses current and past 12 hr temperature
combined with climatology for site. Weather and location
◉ Identify the altitude a pressure altimeter will read when the
Kollsman window is set to the "standard" mean sea-level pressure.
Answer: 29.92
, ◉ Identify the altitude a pressure altimeter will read when the
Kollsman window is set to the current altimeter setting.. Answer:
mean sea level
◉ List the three most common errors in altimeter reading. Answer:
sea level pressure, tempature (cold and hot), and strong vertical gust
(mountain and thunderstorm)
◉ Identify the only altimeter error that the altimeter setting
corrects. Answer: sea level pressure
◉ Describe the effects of both changes in surface pressure and
changes in temperature on altimeter readings.. Answer:
Temperature: during cold weather vertical seperation is nesscary and
make sure to have extra altitude.
Surface Pressure: when flying in high you are fine but flying in cold
you need to adjust altitude.
◉ Describe the impact of non-standard temperatures on density
altitude. Answer: Low density altitude increases performance--air is
more dense and provides greater lift and thrust
High density altitude can be hazardous, especially if an aircraft is
critically loaded.
PAPER 2026 ACCURATE SOLUTIONS
GRADED A+
◉ difference between station pressure and sea level pressure.
Answer: station pressure: the presssure measured directly by a
barometer. Minor corrections for temperature and latitude
Sea level pressure: the station pressure corrected for altitude.
Multiple ways to correct for altitude
◉ Explain the difference between altimeter setting and "actual" sea
level pressure. Answer: altimeter setting: FAA uses a constant
"standard Atmosphere. Indepent of weather and location
Sea Level pressure: NWS uses current and past 12 hr temperature
combined with climatology for site. Weather and location
◉ Identify the altitude a pressure altimeter will read when the
Kollsman window is set to the "standard" mean sea-level pressure.
Answer: 29.92
, ◉ Identify the altitude a pressure altimeter will read when the
Kollsman window is set to the current altimeter setting.. Answer:
mean sea level
◉ List the three most common errors in altimeter reading. Answer:
sea level pressure, tempature (cold and hot), and strong vertical gust
(mountain and thunderstorm)
◉ Identify the only altimeter error that the altimeter setting
corrects. Answer: sea level pressure
◉ Describe the effects of both changes in surface pressure and
changes in temperature on altimeter readings.. Answer:
Temperature: during cold weather vertical seperation is nesscary and
make sure to have extra altitude.
Surface Pressure: when flying in high you are fine but flying in cold
you need to adjust altitude.
◉ Describe the impact of non-standard temperatures on density
altitude. Answer: Low density altitude increases performance--air is
more dense and provides greater lift and thrust
High density altitude can be hazardous, especially if an aircraft is
critically loaded.
