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10-1
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Allows limited use of unlinked and opposite rolls on
horizontal lines in Intermediate Power Unknowns.
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Appendix
3 Intermediate
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Change the NOTE FOR ALL FAMILIES on page A3-1 for
Intermediate Unknown figures to: “Unlinked and opposite aileron rolls
permitted only on straight, horizontal lines. Such roll combinations may not
precede a figure beginning with either a 45-degree or vertical up line.
Rolling elements may be added only where indicated, but are never permitted
following a spin.”
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This change is self-limiting because of the small number of
horizontal aileron rolls permitted by Appendix 3 for Intermediate flight.
There is nothing inherent in Intermediate-level aircraft capability which
makes flying horizontal opposite and unlinked aileron rolls too difficult or
unsafe. Energy considerations are handled by the restrictions set forth in
the “Note for all Families”.
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10-2
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Adds the horizontal 1/4 and ¾ slow rolls to the
allowable Family 9 figures for Intermediate Unknowns.
[NOTE: Requires passage of 10-1]
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Appendix 3 Intermediate
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Add the
following Catalogue numbers to the allowed Intermediate Family 9.1 maneuvers:
9.1.3.1
9.1.3.3
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There are currently very few options in the Intermediate
Unknowns for changing the aircraft’s attitude from upright to inverted
or vice versa. These two proposed horizontal roll additions are well within
the capability of both Intermediate aircraft and pilots.
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10-03
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Adds two additional Family 5 Hammerheads to the legal Intermediate
figures.
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Appendix 3 Intermediate
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Add the
following Catalogue numbers and restrictions to the allowed Intermediate
Family 5 maneuvers: 5.2.1 : No rolls allowed on the 45 or vertical up lines 5.4.1
: No rolls allowed on the 45 or vertical down lines
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These two “45” hammerheads are well within the capability
of Intermediate aircraft and pilots. With the specified restrictions on where
rolls may be placed, there are no adverse effects on either safety or
performance. Adding two more Intermediate-capable figures will also increase
the diversity and “fun factor” of Intermediate Unknowns.
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10-04
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Changes the contest wind limitations
from a set numeric value to a limit which can accommodate differences in
contest airports and competitor experience levels.
Adds the wind limitation
requirement to the list of Contest
Jury
duties.
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4.19.3
1.4.2
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Flight will not be conducted if the
combined wind speed and direction exceeds a safe limit based on the Contest
Jury's judgment of flight operations when considering competitors'
experience, and the contest runway's length, width, and orientation to the
wind. Any contest official or competitor may ask the Contest Jury to consider
stopping the contest based on wind conditions. The Contest Jury will consult
with the CD, Chief Judge(s), and Starter, as appropriate, when making their
final decision. Insert new paragraph (d):
(d) Stopping contest flying because
of wind
speed or direction exceeding safety
limits
based on observed flight operations.
(See
4.19.3)
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The current 20 knot wind limit is a
completely
arbitrary number which does not
take into
consideration the orientation of
that wind to the
contest runway, the width of the
active runway, the
experience level of the competitors
flying, or other
local conditions which may mitigate
or aggravate
that limit. The current rule is also
vague by not
specifying whether the 20 knot
limit is surface wind
or wind at some specific altitude
in the aerobatic
box. Finally, many contests lack any
means of
obtaining accurate surface wind
speeds, much
less
box winds at altitude.
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