pointer reflects the best speed ring setting from your current position to goal, at least until the situation changes
again. Some caution here, flying the speed where L/D gnd = L/D reg is generally not advisable unless it is
abundantly clear that conditions on course line are becoming more favorable. It is prudent to back off of the the
speed ring setting determined by L/D gnd = L/D reg. By how much depends on what conditions look like on the
way to goal, feedback from pilots in front of you, or your intuition. It is also important to note that reassessing
your final glide speed ring setting should not be done actively or you will end up flying reverse speed-to-fly
(slowing down in sink). Remember, speed-to-fly assumes lift and sink will net zero, not that there will be no sink
on your glide. Reassessing should be done only after a significant period of excessive sink (or lift).
In some competition tasks the last turnpoint is relatively close to goal and thermal height and/or a favorable
tailwind will allow you to achieve sufficient altitude before the last turnpoint so that you can go on final glide
before achieving the last turnpoint. In this case the user-field A BG Goal should be monitored. A BG Goal
shows your altitude above your best glide line around the remaining portion of the course (accounting for the
wind). Since this value is relative to your best glide line, it is good idea to climb above A BG Goal = 0 and gain
some reserve altitude before going on final glide. If you wish to fly above best glide speed (usually the case if
the last thermal is good) then you should climb even higher than your reserve margin. The user–field L/D Goal
is the glide ratio required to make it around the remainder of the course and can also be monitored in this
situation to help evaluate your progress.
6 Flight Memory and Flight Analysis
6.1 Flight Memory
The 6030 has a sophisticated flight data recording function that records complete flight data in accordance with
IGC (International Gliding Convention) rules. This recording includes a digital signature to secure the recording
against tampering. This means that flights recorded on the 6030 can be transferred directly to an online contest,
scorekeeper, certifying body for record homologation, etc. without the need to “process” the recording through a
computer program. The following data is recorded at a preset recording interval: time stamp, latitude/longitude
(in the WGS84 coordinate system), indication of fix quality, pressure altitude, GPS altitude and air speed (or
groundspeed if no airspeed sensor is used).
There are three recording modes available, fulltime, automatic and semi-automatic. Automatic recording is
the default recording mode, meaning that the instrument will automatically detect the beginning and end of the
flight. The 6030 determines when a flight has begun by monitoring GPS speed and altitude change and when
either of these values exceed a preset threshold, the flight is deemed to have begun; this moment is referred to
as Flight Acceptance. Using this mode the instrument will only record from just before takeoff to 1 minute after
landing. To ensure that the flight recording includes the very beginning of a flight, the 6030 will include up to 27
recording points prior to flight acceptance. For example, with the recording interval set to 10 seconds, the flight
recording will include the 4-1/2 minutes (27 x10s) before flight acceptance. If the recording mode is set to
Fulltime, recording will start recording 2 minutes after the instrument is turned on (to allow any necessary
settings to be made before the recording starts) until the instrument is switched off. Semi-automatic will record
from Flight Acceptance until the instrument is switched off. The recording
mode and parameters for Flight Acceptance can be set in Menu>Pilot
settings> Recording>Recording mode. The default mode is Automatic (Full
auto) and the default parameters for flight acceptance are 10km/h and 20m
of altitude change.
With the recording mode set to automatic, a flight will be determined to
have ended when the horizontal speed is lower than 6mph (10 km/h) and
the vario is less than 20 ft/min (0.1 m/sec) for 60 seconds. When this
occurs the 6030 will show an overview of the flight called the Flight
Analysis page (shown right). The digital signature (a checksum used to
verify that the flight record has not been tampered with) is calculated at this
moment. Do not press any keys until the process is completed. After the
digital signature is generated the instrument will save the flight to the
instrument flight memory and as an IGC file to the SD card, if one is
installed. A message at the bottom of the Flight Analysis page will confirm
the progress and indicate the name of the IGC file when complete. You can
then return to the run mode with a short press of the OK key. A flight must
be at least three minutes long to be logged into memory.
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