SUUNTO Vyper - Manual (Page 36)

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3.5.3. Flying After Diving
The no-fl ying time is shown in the center window next to the airplane image. Fly-
ing or traveling to a higher altitude should be avoided at any time the computer
counts down the no-fl ying time.
NOTE! The airplane symbol is not shown on the stand-by display. You should
always activate the dive computer and check that the airplane symbol is not
displayed prior to fl ying.
The no-fl ying time is always at least 12 hours or equivalent to the so-called
desaturation time (if longer than 12 hours). In the permanent Error Mode and
GAUGE Mode the no-fl ying time is 48 hours.
Flying or traveling to a higher altitude after a dive may signifi cantly increase the
risk of decompression sickness.
WARNING!
YOU ARE ADVISED TO AVOID FLYING ANY TIME THE COMPUTER
COUNTS DOWN THE NO-FLYING TIME! Further, the Divers Alert Network
(DAN) advises as follows:
- A minimum surface interval of 12 hours would be required in order to be
reasonably assured a diver will remain symptom free upon ascent to altitude
in a commercial jetliner (altitude up to 2400 m [8000 ft]).
- Divers who plan to make daily, multiple dives for several days, or make dives
that require decompression stops, should take special precautions and wait for
an extended interval beyond 12 hours before fl ight. Further, the Undersea and
Hyperbaric Medical Society (UHMS) suggests divers using standard air tanks
and exhibiting no symptoms of decompression sickness wait 24 hours after
their last dive to fl y in an aircraft with cabin pressure up to 2400 m [8000 ft].
The only two exceptions to this recommendation are:
- If a diver had less than 2 hours total accumulated dive time in the last 48
hours, then a 12 hour surface interval before fl ying is recommended.
- Following any dive that required a decompression stop, fl ying should be
delayed for at least 24 hours, and if possible, for 48 hours.
SUUNTO recommends that fl ying is avoided until all the DAN and UHMS
guidelines and the dive computer wait to fl y conditions are satisfi ed.
WARNING!
THERE CAN NEVER BE A FLYING AFTER DIVING RULE THAT IS GUAR-
ANTEED TO PREVENT DECOMPRESSION SICKNESS COMPLETELY!