Reserve
(Rescue) Parachutes
Section
IV, Chapter 28: Accessories: Choosing a paramotor reserve (rescue) parachute
See also
Reserve Parachute: Safety Considerations & Repack Video
2010-11-16 revised, correction on units.
Emotions run high regarding the decision to carry
a reserve. It's a safety device, like many others, that has benefit with some tradeoffs.
If you do
choose to carry one, learn to use it!
Know that wearing a helmet probably adds more safety than wearing a
reserve. One PPG fatality involved a pilot crashing into wires and
falling. Paramedics determined the pilot
would have lived had he been wearing a helmet. Other fatalities might
have been prevented with a helmet, too.
Some pilots prefer the feel of open air and choose not to wear helmets.
So be it as long as they understand the risk. Some pilots prefer not to
carry the weight of a reserve. So be it, as long as they understand the
risk. It's not my position to "tell" anyone what they "must" do to be
safe but rather point out the trade-offs. Safety is not black and white,
it's a shade. Risk and reward. The PPG Bible covers mounting
and using a reserve but you should find an instructor who is familiar with your chosen model. Without
training, the reserve can add as much risk as it mitigates although
accidental deployments have, fortunately, proven rare in powered
flight. If you answer
yes to 1 or more of the questions below and are at or beyond the PPG2
level then you would likely benefit from carrying a
reserve.
-
I sometimes fly mid-day.
-
I fly anywhere near where
General Aviation aircraft fly.
-
I don't mind flying in somewhat active (mildly bumpy) air.
-
I tend to fly above 200 feet (whether in smooth air or not).
-
I gravitate towards steep
maneuvering at altitude.
-
I sometimes fly formation with other pilots above 100 feet.
Reserve Parachute Saves
We know of at least 5 pilots who feel they were saved by
their
reserve parachute. One was flying several hundred feet high on a nice
evening and got surprised by level
8 turbulence. It's impossible to know how these would have ended
without the reserve but subsequent videos of similar situations suggest
that most would have survived either way.
1. A pilot in Salt Lake City was flying
in strong mechanical turbulence
and took a major collapse with complications. He was unable to recover the
wing and had to use the reserve.
2. A pilot flying in moderate conditions near Columbus, OH got into
severe turbulence.
3. While flying in thermally conditions a pilot encountered strong
turbulence in North Carolina. 4. A pilot flying during early evening of an otherwise light
thermal day, encountered level 8
or higher turbulence. He was several hundred feet high and tossed the
reserve by 200 feet. 5. A pilot flying a trike in aerobatics botched a
loop and went through his lines. Although the wing appeared to recover
it's unknown how it would have flown. He landed safely under the reserve. Reserve Parachutes
During Training
Several instructors feel that
beginning paramotor pilots should not use a reserve. As much as these
instructors would like to profit from the sale of one, they don't find it in the new pilot's
best interest. Reasons include:
-
The additional weight makes
falling slightly more likely. It is also more cumbersome, especially
depending on reserve placement, and can make launching harder. Success
takes more time.
-
A new pilot is far more
likely to cause an accidental deployment.
-
A new pilot is less likely
to have a successful deployment. Rehearsal can help enormously,
though, in this regard.
-
The risk is minimized
because training takes place under relatively controlled conditions
(only train when it's benign) and with an instructor on radio.
It appears that about 80% of
all paramotor instructors who've been teaching more than a few years hold
this view. Instructors with a free-flight background will be far more
likely to have their students wear a reserve from the start since that
practice is common in free flight.
If you do use a reserve, learn how to mount and deploy it. The motor
pilot's deployment creed is "Kill, look, pull, clear and throw." That
is, kill the motor, look at your reserve handle, pull
the handle, then find clear air to and throw it that
way. A plasticized, small, checklist with this statement is part of
every USPPA membership packet. Reserves
Parachutes and Free Flight
It's almost universal that
free-flight pilots fly with a reserve parachute. There's a number of
reasons but mostly its because they have a reasonable expectation that it
may save their life. Even for ridge flying, which is almost always done
within a hundred feet of the ground, they offer protection.
Soaring pilots necessarily fly
in conditions strong enough to keep them aloft. That's riskier and more
likely to result in complications from a collapse that will require a
"toss" (of the reserve). I've seen and experienced numerous
significant collapses at thermal soaring sites and watched at least 4
reserve rides although 1 was from a mid-air.
Playing the
Odds
We deal in probabilities.
There's the probability that you'll need to use a reserve and some
probability that it will be effective. There is also a very tiny
probability of an accidental deployment.
For example, if you fly in
beach air all the time than the probability of having a wing collapse is
much, much less than if you fly inland during mid-day conditions. If you
fly on a beach when the wind is blowing out to sea, or an area where
prevailing winds are out to sea but are currently on shore, than your
probability of turbulence or a wing collapse go way up. No, we
can never perfectly predict when turbulence might strike but sure can pick
the most unlikely times and places. Mornings and evenings are dramatically
less likely to serve up wing-collapsing turbulence in typical inland
locations.
If you rarely venture above 50
feet then the probability of a reserve saving you, even if you have a
collapse, is nearly zero. The more time you spend above about 200 feet,
the more you're in the save zone.
There are few absolutes
regarding safety choices. Just choosing to fly incurs significant risk.
Choosing to fly without a helmet, without a reserve, to fly in rowdy weather, to fly low,
etc. are all
choices that add risk in varying amounts. Choosing to, or not to wear a reserve is no different.
|
Canopy
|
Launch
Weight (lbs)
|
Quantum
330 Rate-of-descent
(feet/second)
|
|
Sea
Level
|
3000
Feet
|
6000
Feet
|
9000
Feet
|
| |
|
QS
330
|
225
|
15.8
|
16.6
|
17.3
|
18.1
|
|
QS
330
|
275
|
17.5
|
18.3
|
19.2
|
20.1
|
|
QS
330
|
325
|
19.0
|
19.9
|
20.8
|
21.8
|
| |
|
Canopy
|
Launch
Weight (lbs)
|
Landing
Impact (g's)
|
|
Sea
Level
|
3000
Feet
|
6000
Feet
|
9000
Feet
|
|
QS
330
|
225
|
3.9
|
4.3
|
4.7
|
5.1
|
|
QS
330
|
275
|
4.8
|
5.2
|
5.7
|
6.3
|
|
QS
330
|
325
|
5.6
|
6.2
|
6.7
|
7.4
|
|