SUUNTO D4i - Manual (Page 87)

• 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 2,400 m/8,000 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 ex-
tended interval beyond 12 hours before a flight. Further, the Undersea and Hyper-
baric Medical Society (UHMS) suggests divers using standard air cylinders and
exhibiting no symptoms of decompression illness wait 24 hours after their last dive
to fly in an aircraft with cabin pressure up to 2,400 m/8,000 ft. The only two excep-
tions to this recommendation are:
•
If a diver has less than two (2) hours total accumulated dive time in the last 48
hours, a 12 hour surface interval before flying is recommended.
• Following any dive that required a decompression stop, flying should be delayed
for at least 24 hours, and if possible, for 48 hours.
• Suunto recommends that flying is avoided until all the DAN and UHMS guidelines,
as well as the dive computer’s no-fly conditions, are satisfied.
7.5. DIVE PLANNING mode (PLAN NoDec)
The DIVE PLANNING mode displays no-decompression times for a new dive, taking
into account the effects of previous dives.
When entering the DIVE PLANNING mode (PLAN NoDec) mode, the display first
briefly shows the remaining desaturation time before going into plan mode.
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