2011 Night Jumps!
(Sorry, not for tandems or student skydivers)
Even for a very experienced skydiver, night jumps, (like snow,
hot air balloon and BASE jumps) provide an indescribable (but isn't everything
in skydiving indescribable to the non-skydiver?!!) -unexpectedly surprising
experience that feels unique even to the experienced skydiver for whom this is
their first Night jump. While not comparing to the introduction our first jump
gives us to the new environment of freefall, the environment on night jumps is
very changed from what we experience on any daytime skydive. We schedule night
jumps on full moon nights, carry small glow stick lights mount flashing beacons
on our helmets to satisfy FAA visibility requirements.
you haven't already done a night jump, I strongly recommend you meet the prerequisites
so yo can join us on our next planed night jumps scheduled on our events
June 11, 2011
Jumpers must have a B license, made at least one day jump that day at Orange,
bring one red and one green chemlite and make arrangements to borrow or bring a
strobe. Also, there is a small additional fee to jump at night.
Details coming shortly...
DO IT WITH THE LIGHTS
will need a light visible for three miles and if you want glow sticks for your
altimeter, be sure to bring your own. The briefing will begin 15 minutes after
sunset. You must attend the briefing to jump. Bring your cell phone on the jump, or borrow one that works well here.
Open to all jumpers B license qualified (completed application requirements) or
higher. Jumpers are encouraged to make at least one jump at Skydive Orange
Inc. earlier in the day. Jumpers must attend the night jump briefing
immediately following sunset in the classroom. It is recommended that you make at least one jump during the day prior to making a night jump. refer to the SIM for other details...
SIM Section 6-4
Why jump at night?
Night jumps can be challenging, educational, and fun, but they require
greater care on the part of the jumper, pilot, spotter, and ground
2. As with all phases of skydiving, night jumping can be made safer
through special training, suitable equipment, pre-planning, and good
3. Every skydiver, regardless of experience, should participate in
night-jump training to learn or review:
To maintain safety and comply with FAA Regulations, any jumps between
sunset and sunrise are considered as night jumps.
5. Night jumps to meet license requirements and to establish world
records must take place between one
hour after official sunset
and one hour before official sunrise.
Night jumps provide the challenge of a new and unusual situation that
must be approached with caution because of:
the opportunity for disorientation
b. the new appearance of the earth's surface and the lack of
familiar reference points
c. Vision and depth perception are greatly impaired by darkness.
d. Be thoroughly familiar with the effects of hypoxia (oxygen
deprivation) on night vision (from the FAA Airmen's Information
Manual on the internet. Click
for the page.):
One of the first effects of hypoxia, evident as low as 5,000
feet, is loss of night vision.
(2) It takes approximately 30 minutes to recover from the
effects of hypoxia.
(3) Smokers suffer the effects of hypoxia sooner than
(4) Carbon monoxide from exhaust fumes, deficiency of Vitamin
A in the diet, and prolonged exposure to bright sunlight all
degrade night vision.
Night vision requires 30 minutes to fully adjust.
A jumper's own shadow cast by the moon can resemble another jumper
below and cause confusion.
3. Skydivers infrequently make
night jumps, and are less familiar with and less proficient in
handling themselves under the conditions of this new environment.
4. Since the skydiver cannot
perceive what is taking place as rapidly and easily as in daylight, it
takes more time to react to each situation.
A light visible for at least three statute miles displayed from
opening until the jumper is on the ground (an FAA requirement for
protection from aircraft) (read
2. Lighted altimeter
3. Clear goggles
4. Jumper manifest
5. Flashlight to check canopy
Sufficient lighting to illuminate the target (We are trying to
get the ballfield lights turned on)
Lighting can be provided by flashlights, electric lights, or such
b. Road flares or other pyrotechnics and open flames can be
extremely hazardous and should not be used.
c. Automobiles can be used for lighting, but they clutter the
Cycle the automatic activation
device to ensure
it is within the time-frame operational limits for the night jump.
Night jumps should be conducted in light winds.
advice and notification
Use a topographical map or photo with FAA Flight Service weather
information for appropriate altitude and surface winds to compute
jump run compass heading and exit and opening point.
e. One senior member should be designated jumpmaster for each pass
and be responsible for accounting for all members of that pass
once everyone has landed.
Target configuration for accuracy:
Arrange lights in a circle around the target area at a radius of
25 meters from the center.
b. Remove three or four of the lights closest to the wind line on
the downwind side of the target and arrange them in a line leading
into the target area.
Place a red light at dead center, protected by a plexiglass cover
flush with the surface.
Emergency: Extinguish all lights in the event of adverse weather or
other hazardous jump conditions to indicate "no jump."
4. Ground-to-air radio communications should be available.
5. Night Spotting:
Current wind information for both surface and aloft conditions is
critical at night.
b. Spotters should familiarize themselves with the drop zone and
surrounding area in flight during daylight, noting ground points
that will display lights at night and their relationship to the
drop zone and any hazardous areas.
c. The spotter should plan to use both visual spotting and
aircraft instruments to assure accurate positioning of the
d. During the climb to altitude, familiarize each jumper with the
night landmarks surrounding the drop zone.
A jumper making a first night jump should exit solo (no group
2. Strobe lights are not recommended for use in freefall, because they
can interfere with night vision and cause disorientation.
Warning on pyrotechnics:
Group jumps: freefall and canopy