Three basic forces act on gliders: lift, gravity and drag (airplanes have a fourth force: thrust): Lift is the all-important force, created by the wings and counteracting the weight, which allows an aircraft to stay aloft. In the case of a glider, the lift is enhanced through the use ...
Fuel mixture/heat - monitor and regulate the fuel-to-air ratio of the engine and the temperature of the mix to prevent icing at higher altitudes Envelope pressure controls - monitor and regulate the helium pressure in the envelope and the air pressure in the ballonets by opening and closing ...
My mother emailed me last week to ask if she was using the word “nor” correctly, which brings us to today’s post: the use of either or and neither nor.
caused when warm air aloft ends up on the northern, cooler side of thejet stream. It’s a very stable pattern that tends to not budge for days. It gets its name from its appearance on upper-air wind charts that steer winds around the lows and highs in the shape of the Greek letter...
like bridges and sewer systems, that constitute a whole other set of vulnerabilities for residents. On top of that, storm winds have the power to cause severe structural damage, especially for homes at higher elevations; in 2020, Hurricane Laura’s wind speeds peaked at about 150 miles per ho...
Weather systems aloft - the Polar Front and the jet stream back to Contents The interaction of warm tropical and mid-latitude air and cold polar air is what drives much of the Northern Hemisphere's weather all year round. For a variety of reasons, the change in temperature with latitude is...
To make theEcoClipper500self-sufficient in terms of energy use, a first design decision was to shift energy use away from electricity whenever possible. This is especially important for high temperature heat, which cannot be supplied by electric heat pumps. The ship will have a pellet-stove on...
Now we come to two factors that have nothing to do with the kite itself. Thermalsare regions of rising air, which form due to temperature differences on the ground. A giant bubble of air which is just slightly warmer than the surrounding air is less dense. Therefore, it has a tendency ...
Tools for measuring temperature, pressure and humidity Another weather research tool, the Doppler on Wheels (DOW), also uses the same instruments in addition to a mobile Doppler radar. The DOW, however, must stay between two and eight miles away from a tornado. Since the TIV houses the same...
And while you need a nice wind current to have a good flight, very strong winds could easily wreck the balloon. Pilots also call the weather service to get a rough idea of which way the balloon will travel, and how they should maneuver once they're in the air. Additionally, a pilot ...