Performance Characteristics of the
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Please Read Carefully!!!
This document describes in detail the
opening, flying, and landing characteristics of the
Velocity in comparison to a similarly sized Stiletto.
There are also a few flying tips. This will help
potential users of the Velocity learn as much as possible
about the canopy before deciding to jump it.
The Velocity is intended
only for very experienced pilots who have already flown a
small elliptical canopy for several skydiving seasons,
and consider themselves very current and very proficient.
If this doesnt describe you, keep jumping and keep
learning, but stay away from the Velocity, especially if
its a smaller canopy than youre used to. If
you decide to go for it, we suggest you make several solo
jumps on the Velocity opening above 6000 feet, or higher
if its a small one. This should give you the
freedom to really explore the canopy unencumbered by
other traffic.
1. Flight Characteristics:
General Impressions:
The Velocity has the largest flight speed range of any
canopy weve ever jumped. It is an absolute blast to
fly. It responds very quickly to toggle, riser, or
harness movements, and feels very "connected"
to your body. Its cross-braced structure makes it feel
very rigid. The swoops on a Velocity are the longest
weve seen from any canopy, especially when using a
smooth aggressive approach. The Velocity lands great,
even at the maximum placarded wing loading, after a
normal straight-in approach without front risers. There
should be no problem using very conservative straight-in
approaches in the beginning, especially if youve
done a few recently on your present canopy of similar
size. The flight performance information below assumes
the canopy size is the same as what youre used to.
Obviously, things happen much faster than described when
down sizing.
Straight flight at full glide:
The canopy is slightly faster at full glide than the same
sized Stiletto, but has a much higher rate of descent.
The Stiletto has a much flatter glide at full glide, with
the Velocity pulling out in front.
Straight Flight in brakes:
The control range on the Velocity is slightly longer than
a Stiletto, but gets progressively shorter as you
downsize. Like the Stiletto, the Velocity will really
flatten out when flying in the brakes. Getting back from
long spots using this technique is easy, as long as you
get deep enough in the brakes. The speed slows down
noticeably, but the descent rate slows dramatically,
which is the key to performance on long spots upwind.
Flying the Velocity in deep brakes is also an excellent
method of creating more vertical separation from other
traffic prior to landing.
Stall Characteristics:
When using with careful control inputs, and recovering as
smoothly as possible upon the first indications of a
stall, the Velocity has a slightly less radical stall
compared to a same sized Stiletto. This is due to the
fact the canopy initially bends in the middle less than
the Stiletto at the start of the stall, which makes
heading control less difficult. This situation changes
quickly, however, if the pilot does not take immediate
action to recover upon the first indications of a stall.
As with any high aspect ratio elliptical canopy, the
Velocity will become very difficult to keep on heading if
the stall is allowed to develop fully, with line twists
being a distinct possibility. Also, when recovering using
too aggressive a technique, the Velocity is more likely
to recover with closed end cells, turns, slack lines, and
rapid altitude loss, even if the initial stall was quite
gentle. As with the Stiletto, radical stalling maneuvers
are likely to result in an unrecoverable situation on a
Velocity, so such maneuvers should not be attempted,
especially during turns.
Turns from full glide:
The Velocity tends to dive much more than a Stiletto
during turns from full glide, even when the turns
arent very radical. Gentle toggle turns from full
glide create a similar flight path to gentle front riser
turns on a Stiletto. Though the Velocity doesnt
take much toggle movement to produce a turn, it does
require slightly more toggle input and pressure than a
Stiletto, to achieve a given turn rate. The ultimate turn
rate of the Velocity is faster than a Stiletto. The
Velocity builds up and retains a lot more speed in a turn
from full glide than a Stiletto, in even a gentle turn.
This is partly because of the steeper glide, but mostly
because the Velocity airfoil is very clean
aerodynamically. If jumping a Velocity in a smaller size
than youre used to, be smooth and gentle on the
toggles. Yanking a toggle down might cause such an abrupt
turn that you get a three-ring slammed into the side of
your head!
Braked turns in low speed flight:
The turns flatten out a lot while in the slow flight
mode, when compared to turns at full glide. However, you
still need a healthy respect for your speed and rate of
descent while in brakes, especially if youve down
sized from your previous canopy. The ability to make
turns in brakes while losing little altitude diminishes
rapidly as you downsize any canopy, which is a good
reason to be cautious about making a big change in size.
Braked turns in high speed flight:
If youve converted excess speed (generated from
high-speed maneuvering) back into lift by using brakes,
very flat or even climbing turns are possible, and come
in handy when you need a little extra altitude. Using
braked turns while entering and flying in the landing
pattern is especially helpful for conserving altitude to
be used for additional safety margin on the last turn
onto final. Lots of low turn accidents could have been
avoided using this strategy. It is important to
understand that rapid turns in braked flight will still
develop tremendous airspeed and high G-forces, and a
lethal rate of descent as well. If youre spiraling
toward the ground, going into brakes wont stop the
rate of descent unless you stop the turn!
Harness turns:
The Velocity turns very well using only harness
movements, especially when the brakes are set. At higher
wing loadings, prolonged harness turns become a fast
spiral at the ground at extremely high speed, whether the
brakes are set or not. One should feel free to make
heading changes using harness movements, but blindly
spiraling at high speed should be avoided, regardless of
the control method, as it can be a danger to other
traffic. The harness also works really well to fine tune
your heading during the dive after letting up on the
front riser.
Oversteer after turns:
The Velocity will oversteer about as much as a Stiletto.
Oversteer is the tendency for some canopies to continue
to turn after neutralizing the toggles, rather than
immediately stopping on heading. The degree of oversteer
a jumper feels is heavily influenced by any intentional
(or unintentional) weight shifting during the turns. Some
people allow themselves to get slung to the outside of a
turn, and they feel very little oversteer. Others lean
into the turn, but dont lean out during roll out,
and they will feel a lot of oversteer. Most people who
have been flying highly elliptical canopies for a while
use harness movements to roll both into and out of a
turn, in conjunction with toggles. Stopping turns using a
little opposite harness movement alone works really well
on the Velocity, for all but the fastest of turns.
Front riser turns:
The Velocity will dive a great deal more than a Stiletto
during a front riser turn. Be really careful of this on
your first jumps! Riser pressure starts fairly low at the
beginning, compared to a Stiletto, but will increase
steadily as the speed builds up. On long, carving front
riser turns where you build up tremendous speed, a great
technique is to start a turn using the riser, and then
smoothly transition to a harness turn as the riser
pressure builds up.
Coming out of the dive:
The radius of the Velocitys natural pull out arc is
much larger than that of the Stiletto, whether a riser or
a toggle initiated the turn that started the dive. The
difference will be even more noticeable if youre
downsizing. Like most canopies, the Velocity will not
pull out into level flight completely unless some brakes
are applied. (It will pull out to a flight path that is
slightly flatter than the normal full glide angle, but
will not as flatten out as much as the Stiletto.) For
these reasons, your first few approaches to landing
should be very conservative, with very little turn, if
any. Start your last turn to final really high!
Dont be afraid to use the toggles if you find
yourself lower than expected and need to start pulling
out of the dive! There is a big difference between the
Velocity and the Stiletto in these regards. Compounding
this difference is the fact that many Stilettos are set
up incorrectly, with the control lines deflecting the
tail even with the toggles up. This slows the canopy
noticeably at full glide, tightens up the pull out arc a
great deal, and may make the Stiletto pull out completely
into level flight with little or no need to use the
brakes, something it really wasnt designed to do.
If you have a Stiletto set up like this, you can expect a
huge change when going to a Velocity, especially if you
downsize. Also, get rid of the belief (if you have it)
that you absolutely have to point the canopy straight at
the ground to gain speed for a good landing. You can make
some amazing swoops from a normal straight in approach on
a Velocityeven without using front risers.
Setting up the Velocity for great front riser
performance:
For best front riser performance, it is important to
install risers and toggles in the correct configuration
to prevent canopy buffeting during riser maneuvers. The
Velocity is very stable on front risers, but its front
riser performance is effected more by incorrect set up on
risers and toggles than a Stiletto. Two factors
contribute to good riser performance:
First, the loops (or blocks) on the
front riser should be as high up as possible, so that
your hand must grab the riser at least four inches (10cm)
above the height of the toggle position. This will help
prevent too much tail being pulled down when front riser
ring while the toggles are in your hands (where they
should be.) If you cant reach up that high on the
risers, get shorter ones.
Second, make sure
there is sufficient slack in the control system. The
control system should appear quite bowed at full glide,
due to the drag of the lines. Having the control lines
tied too short deflects the tail, which makes the initial
toggle turn rate feel snappier, but reduces canopy speed
at full glide, reduces the speed and angle of the dive,
and causes buffeting.
A kill line collapsible pilot chute is mandatory!
This is a third factor that contributes to good front
riser performance, but it goes much farther than this! It
is very important to have a very dependable collapsible
pilot chute on a Velocity. Due to the very high speed
that can be attained with a Velocity, the pilot chute
must be collapsed after its not needed, and it must
stay collapsed. A bungee style collapsible is not
recommended as it may inflate when its not needed,
and really change your flight path. This can be a problem
on any small high aspect ratio canopy, and its not
often mentioned. At best, it will cause a rapid loss of
speed and change in flight direction. The worst scenario
would be if the pilot chute suddenly inflates during
initiation of a radical front riser turn, or during an
aggressive stall recovery. In this situation, it is
possible that the pilot chute could "stop" the
center cell while the end cells continue to fly forward
toward each other until they touch, causing obvious
problems! Again, this can happen on any high aspect ratio
canopy, but it has a bigger effect of a high speed one. A
kill line pilot chute avoids this possibility.
2. Landing the Velocity:
General Impressions:
(It is assumed that the prospective Velocity pilot is
already very proficient at landing their present canopy,
so this is not a "how-to" description!) Landing
a Velocity is a real pleasure, once you become accustomed
to the high approach speed! A Velocity can be slowed down
much more at the end of a landing than similarly sized
canopies, even more than many canopies much larger. Most
people dont expect this, and put their feet down
prematurely on their first Velocity landings, touching
down faster than is necessary. Consistent landings, with
minimum possible speed at touchdown time, are necessary
before downsizing to a smaller Velocity. It is important
to be smooth on the toggles while planing out, or the
distance will be reduced, and the touchdown speed will be
higher than necessary.
Straight in landings, no front
riser:
Since the Velocity has a steeper approach angle than a
Stiletto, a straight in approach feels similar to an
approach made with a small amount of front risers on a
Stiletto. Many aggressive pilots are afraid of straight
in landings, but they can be accomplished quite well on
the Velocity, even at very high wing loadings, if the
technique is right. You have lots of excess energy, which
makes it easy to level off and plane out for a long
distance, if you get the technique and timing right. A
big part of the technique is to avoid the common mistake
of being "twitchy" on the toggles all the way
down the final approach. This nervous habit scrubs off a
surprising amount of speed, which certainly wont
help the flare! Harness movements are great for making
minor course corrections smoothly.
Aggressive turning approaches:
If youve already been doing them for hundreds or
thousands of jumps, then your skills will probably
transfer to the Velocity. This assumes that you keep the
down sizing within reason, and start your approach much
higher than you are used to. Really watch the altitude
loss! This is a very dangerous game, one that is very
unforgiving of error. Two ideas to consider: First, for
the front riser crowd, dont think of a toggle turn
as dangerous in and of itself. With the Velocitys
speed and rate of descent, you may find yourself too low
for a front riser turn, and a carving toggle turn may
save your day. Second, a long carving turn initiated
really high will build up much more speed than a radical
snapping turn, so youll get longer swoops. Do
remember, however, they take a lot of space and a great
deal of altitude, and may not be appropriate in traffic.
The ability to switch to a more mellow approach at any
time is the mark of a great canopy pilot. Be courteous to
the slower traffic.
3. Opening Characteristics:
Definitions:
The first part of the opening force you feel is called
the snatch force. It is the force you feel when the
canopy first gets to line stretch. The second phase of
the opening is called the snivel, during which the canopy
is overhead but the slider has not yet begun to travel
down the lines. The third stage is the inflation, during
which the slider travels down the lines and the cells
finally pressurize.
Snatch force:
The snatch force on the Velocity is equal to, or slightly
higher than on a Stiletto, mainly due to the extra bulk
and rigidity of the canopy. The brake setting is deeper
as well. This is important for reducing the flying speed
on opening, but it also contributes to a slightly higher
snatch force. We feel the trade off for safety is worth
it. Neat flaking of the canopy during packing will reduce
the snatch force.
Snivel:
The snivel is comparable to that of a Stiletto, and much
longer than that of a Sabre or a Silhouette. The snivel
is considerably shorter when the jumpers airspeed
is higher, and snivels considerably longer when going
slower. The snivel is also affected by the degree of
neatness in the pack job.
Inflation:
In general, the inflation is similar to that of a
Stiletto, perhaps a little slower, with a similar peak
force. However, the opening may be slightly quicker if
you have the habit of deploying at a higher airspeed,
(primarily because the snivel will be shorter, so you
will not have slowed down as much before inflation.)
Heading control during opening:
The Velocity is easier to keep on heading than a
Stiletto. However, like on the Stiletto, even slight body
movements in the harness will cause a heading change, for
better or worse. See the additional note about heading
control at the end of this document.
Factors that affect openings:
The Velocity openings are more affected by differences in
airspeed, pilot chute size, and neatness of packing than
a Stiletto, with the Stiletto being more forgiving than
the Velocity in these respects.
Neatness in packing helps make the
openings more consistent. Give the canopy a good shake,
to get the fabric to lay flatter before you flake between
the line groups. Pushing the nose into the center of the
pack job is definitely not recommended, as it promotes
off heading openings. Either leave the nose straight, or
fold each half toward the center without pushing it into
the pack job. Take care to keep the C and D lines
together in the center. The slider should be quartered
evenly to the sides, front and back, with just a little
sticking out in front of the nose. You should take care
to keep the slider grommets firmly against the stops on
the stabilizers, with the slider fabric well down inside
the center of the pack job. When wrapping the tail around
the canopy, roll just enough tail to keep things under
control, and dont stuff that roll into the pack
job! When bagging the smaller sizes, you may want to
delete the first small fold in the slider area, (see the
manual,) as the canopy will be too short to complete the
rest of the folds!
4. Size Does Matter:
General:
As everyone knows, many people have been flying their Stilettos at wing loadings
of 1.4 to 2.1 pounds per square foot, rather than staying below the 1.3 pounds
listed on the warning label. Those who have been doing this with good success
will be pleased with a Velocity at 1.2 to 2.2 pounds per square foot, though it
can be loaded as lightly as 1.0 pounds per square foot if that is what a person
is used to. The warning label shows this entire range, but this should not be
interpreted to mean that a person who can fly and land a Stiletto at 1.3 should
go straight to 2.2 on a Velocity! Here is our current thinking (at the time of
writing) concerning the wing loading of the Stiletto and Velocity for various
experience levels of canopy piloting:
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| VLC* = Varies with landing conditions. N/R = Not Recommended |
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So what size is best for you?
We strongly believe in avoiding a large change in canopy
size when downsizing, regardless of how efficient the
canopy is or how it is placarded. Think about your
present canopy, and your present skills. Is it a real
handful to fly? Do you feel comfortable in traffic? Are
your friends concerned about your flying? Really think
about whether you want to go faster and are prepared for
landing a small Velocity in an unexpected, tight landing
area. Downsizing a small amount may be appropriate if
youre looking for more speed and have the necessary
skills. If not, its perfectly acceptable to stay with the
same sized Velocity, or even one a little larger, as long
as youre above a minimum of 1.0 pounds per square
foot. When downsizing, we strongly recommend no more than
15% increments. Youll need this time to get used to
dealing with traffic when youre going so much
faster. The ability to fly the canopy really slowly while
looking way ahead becomes very critical after down
sizing, in order to create enough separation from
traffic.
5. Summary:
Remember, the comparisons described above assumed the canopies were sized the same. Downsizing even a little bit will really spice things up a lot. In other words, expect a Velocity 103 to be faster and much more responsive in every way than a Stiletto 107, because its smaller. (It will slow down more, if you have the right technique, though.) The Velocity is really fun to fly, but will not replace everybodys Stiletto. Canopy model and size are a personal choice, and much more should go into the decision than the question, "Is it fast, and can I land it?" Choose your canopy while considering the information presented here, and reflecting on your present experience and desires. If you decide the Velocity is for you, we certainly hope you thoroughly enjoy it as much as we have.
Additional notes on heading control during openings: