Nav-Aids Ltd of Montreal, Canada
manufactures
Static Test Equipment for all segments of the aviation industry.
Sample Static Test
Adaptor
| Static Products |
Test
Adapters |
Static
Testers |
Probe
Covers |
Static
Test Equipment |
Static
Test Adapters |
Static
Blanking Adapters |
Air
Data Accessories |
Ground
Support Equipment |
Static
Port Covers |
|
Important Notice
Please
be advised that Nav-Aids USA Inc., AKA Nav-USA Inc. is no longer authorized to act as distributor of the
products of Nav-Aids Ltd of Montreal Quebec.
Should you have any outstanding
orders for such products with Nav-Aids
USA Inc. and AKA Nav-USA Inc.,
which have not yet been filled, we would
request that you re-submit such undelivered orders as well as any future orders directly
to Nav-Aids Ltd Fax. No. 514-332-6711 or toll free Tel. No. 1-877-332-3055.
Please be assured that Nav-Aids Ltd will provide all
necessary technical support and back-up with respect to its parts and equipment previously
purchased as well as for future purchases.
*Nav-Aids
USA Inc. and NAV-USA Inc. are associated with the
same Duns Number and Cage Code
More
information on Nav-Aids Ltd vs. Nav-Aids USA
Inc (Nav-Aids
USA Inc, AKA Nav-USA)
|
|
Static Pressure
Airspeed Indicator
Instrument that measures the speed of an aircraft relative to the surrounding air, using
the differential between the pressure of still air (static pressure) and
that of moving air compressed by the craft's forward motion (ram pressure); as speed
increases, the difference between these pressures increases as well.
Pressures are measured by a Pitot tube, a U-shaped apparatus with two openings, one
perpendicular to the flow of air past the aircraft and one facing directly into the flow.
Mercury or a similar liquid fills the bend in the tube, forming parallel columns balanced
by the air pressure on each side. When static and ram pressure are equal,
the columns have the same height. As the ram pressure increases, mercury on that side of
the tube is pushed back and the columns become imbalanced. The difference between the two
columns can be calibrated to indicate the speed; this value, called the indicated
airspeed, may be given in knots, miles per hour, or other units.
Since the airspeed indicator is calibrated at standard temperature and pressure, its
readings are inaccurate at different temperatures and altitudes. An (uncorrected)
indicated airspeed is still used to estimate an aircraft's tendency to stall. Instruments
that electronically correct for altitudinal differences and temperature give the true
airspeed, which is used to calculate the aircraft's position. In faster aircraft,
indicators that measure airspeed relative to the speed of sound, called Machmeters, are
used.
Learn more about:
Static Pressure |
