Navigation planning and plotting without the need for any additional rulers,
A highlight of gaining a Private Pilots Licence is the successful completion the Navigation Skill Test. For most students undertaking this, one of the major challenges is having to plan a diversion to a previously unspecified airfield whilst in flight.
Well-established "rules of thumb" are provided based on estimated maximum drift, flight time and their adjustment according to the forecast wind relative angle and strength. Nevertheless the process of plotting the desired track, measuring the True track and distance, calculating the flight time and wind compensation for heading (not forgetting to apply magnetic variation) and ETA is a demanding process, particularly under the pressure of examination conditions.
Using QuDieM NAVIGATOR to plan a diversion is simple.
With magnetic variation and forecast wind pre-set on the ground, the instrument is aligned with True North over the start position on a half-mill map. The bearing arm is rotated and linearly adjusted to locate the target marker over the destination up to 60miles distant.
Magnetic Track, Distance to destination and ETA are read-out directly.
The viewing window is centred on the nearest reference point (max. 11o rotation) and the Wind Correction Angle and ETA Wind Adjustment is noted and applied to the above Track and ETA readings.
Without the need to make pencil wind marks, draw lines on charts, use supplementary protractors or rulers or apply magnetic variation, QuDieM NAVIGATOR makes diversion planning simple and straightforward.
And as QuDieM NAVIGATOR is a highly versatile light aviation navigation instrument, equally at home in the cockpit or pre-flight, in VFR or Radio Navigation environment, you can continue to benefit from it long after you have qualified.
Wind Correction is calculated at sixteen points of relative wind direction/track
around the compass.
Wind Corrected Heading is within
2º for wind speeds up to 20kts, a deviation of just two miles in sixty.
4º for wind speeds up to 40kts.
Wind Corrected Sector Time (ETA) at 100kts is within
4% for wind speeds up to 20kts, less than 2.5mins in an hour's flight.
8% for wind speeds up to 40kts.
Other ways to buy this product
Great Together with this product - one click buys both
Buy this product and related accessories or just accessories on their own
Gallery: click to view
Additional Product Information
The operational simplicity of QuDieM NAVIGATOR is illustrated
below. Planning a VFR Flight or Diversion
STEP 1 Setting Magnetic Variation into the
instrument by aligning the reference mark on the underside of the instrument
with the required point on the East or West Magnetic Variation scale.
STEP 2 Setting Wind Parameters by rotating the
wind mark to the forecast direction on the outer (true) compass and, whilst
restraining the wind speed tab, use the bearing arm to rotate the display
window until the forecast wind speed clicks into view.
STEP 3 Align the Instrument with True North on
the half-mill chart with the point of departure (whether the start of the
flight or an en-route waypoint) centred in the middle aperture.
STEP 4 Locate the Destination or en-route
waypoint within the target aperture by rotating and linearly adjusting the
bearing arm, ensuring that the True protractor remains in place.
STEP 5 Read off the Track/Courseindicated on the
magnetic (yellow) compass against the To Target °M pointer
and the ETA (minutes) and Distance (nautical miles) from the
bearing arm window.
STEP 6 Align the Compensation reference mark within
the display window to the visible opposing triangles' apexes (max. adjustment
is 11.25°) by rotating the bearing arm.
STEP 7 Read Wind Corrections for heading
(°M) and ETA (%) and apply them to the above figures as indicated by their
related triangle (Open -add, Solid -subtract).
Note that where the wind is within ±10° of the
flight track/course, the arithmetic application sign is determined by the
direction from which the reference mark was aligned in step 6. In practice
unless wind speed is above 25kts compensation for wind angles of less than
10° is marginal.
Use with Radio Navigation
Beacons
NB. Completion of Steps 1 & 2 above is an essential
preparation for any use of the instrument.
Good airmanship requires accurate tracking of planned radials and
flight times. Whether "beacon bashing" or navigating with GPS, an appreciation
of the wind correction for both heading and ETA is essential. In each of the
following applications, the completion of Steps 6 & 7 above conveniently
provides the required information.
The centre aperture of QuDieM Navigator has been designed to match
the VOR compass rose printed on half-mill charts to facilitate alignment with
such beacons.
Tracking From a VOR Align the instrument over the VOR
as Step 3 above. Having located the target aperture per Step 4, the
Track/Course at Step 5 will provide the OBI radial FROM the VOR.
Tracking To a VOR Position the instrument over your
departure point per Step 3 above. Having located the target aperture over
the VOR, the Track/Course at Step 5 will provide the OBI radial TO the VOR.
NDB Radials Where the point of departure and/or
destination is an NDB, employing the instrument as for VFR navigation provides
the NDB magnetic radial to be tracked at Step 5.
Holding Patterns Set the °M From Target pointer
against magnetic (yellow) compass reading representing the inbound holding
heading. (There is no need to aliggn the instrument over the holding beacon).
Complete Steps 6 & 7 to determine the basic wind correction angle.
Where am I?
1. Determined your magnetic bearing to a suitable beacon
from the cockpit instrument.
2. Align the instrument over the beacon with the bearing arm at
minimum distance and rotate the bearing arm to set the °M From Target
pointer to this bearing on the magnetic (yellow) compass.
3. Insert a marker into the target aperture and, whilst preventing
any rotation of the instrument, draw a line on the chart by extending the
bearing arm using the marker.
4. Repeat the procedure with a suitable second beacon. The point
of intersection of the lines will indicate your present position.
Aircraft equipped with DME can locate their position using a
single beacon and twinned with DME by setting the bearing arm to the indicated
distance from the beacon. Having aligned the instrument over the reference
beacon as 1 above, the target aperture will indicate their present
position.
Add To Your Favourites
You can add the main product on this page to one or more of your favourites lists [?]
in basket
in FAVs...
