Measure it in flight with your clinometer and you'll always have a rough sense of what's realistically within gliding distance.
Then walk up the side of the runway to where you expect to lift off and take clinometer sightings of the surrounding terrain.
While it's possible to measure the height of a tree from the ground, dropping a line from the very top gives a much more precise measurement than using a clinometers
or even a laser.
After that statistics were taken by using the Altimeter, Compass, Caliper, and clinometers
and tape meter.
Once a week the high school juniors teach the youth of North Carolina's Wake County Girls Club to build clinometers
and calibrate global positioning systems while surveying and digitizing the trees that comprise the Club's grounds.
Contract notice: Procurement of magnetic Compasses and Clinometers
Bush and Salladay aren't the only guys out there with tape measures and clinometers.
So they decided to go out and measure, using a clinometer made out of cardboard, a plastic straw, and a plum line.
Foresters, arborists, and serious Big Tree hunters dedicated to accurate heights use clinometers
or transits to measure angles; a tape measure or infrared laser rangefinder to measure distances; and scientific calculators and simple trigonometric formulas to crunch the numbers.
An Army Corps of Foresters armed with hypsometers, transits, clinometers
, and trigonometric calculators?
Foresters usually use Abney levels, clinometers
, hypsometers, or transits to determine the height.