[NSRCA-discussion] Advanced Design Criteria

J N Hiller jnhiller at earthlink.net
Wed Feb 6 14:52:29 AKST 2008


Now I am missing something. Are we revisiting the 2009 masters sequence. We
have already changed from the original proposal. Do we really need to change
it again, before flying it in competition? What is wrong with it?
Jim Hiller

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of
vicenterc at comcast.net
Sent: Wednesday, February 06, 2008 12:34 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Advanced Design Criteria

I didn't have chance to follow all the e-mails in this discussion but I want
to say that I am very pleased with the outcome.  After reading looks we
would like to get the following accomplished:

1. Make the adjustments to the Masters as Joe suggested.  I think we just
need to get it back to the level that was 10 years ago or  something in
between Advance and FAI-F3A.  In that time, it was clear to me that the
system was an "Honor" system.  It was natural for pilots that reached very
good level flying Masters to jump to FAI-F3A.
2. I looks like one of the problems is the F-Schedule.  I think is good idea
to fly 4 P and 2F and count all as equal in local contests.
3. Looks like just doing 1 and 2 will please the majority.  We just need to
make the adjustments.  The question is: Do we have time to make an urgent
proposal to change the Master schedule?

I am sorry in advance if I miss something.  I just would like to get some
conclusion.

Thanks,

Vicente "Vince" Bortone



--
Vicente "Vince" Bortone

-------------- Original message --------------
From: Joe Lachowski <jlachow at hotmail.com>
Since, there has been some complaints about Advanced being too easy and not
having any inverted flight, I thought I would throw out what was come up for
design criteria and constraints. I think we addressed some of the concerns.
Well, anyway, here it is for digestion. Again, I do not want to get into a
heated discussion. The baseline of this was from the last sequence
development and past history with some tweaks. Again, subject to change. The
only thing not listed are the maneuvers for Advanced.

Annex A3 -  Advanced Class Design Criteria (AMA Event # 403)

Definition

Advanced is the next class following Intermediate in the progression of AMA
Precision Aerobatic Classes. Advanced is designated as Event # 403 in the
AMA Radio Control Aerobatics Regulations. Advanced is where the skills
presented  in Sportsman (401)  and Intermediate (402) are further reinforced
with  more added complexity and new pilot skills are presented to teach the
pilot the necessary skills required to successfully fly Masters(404) and to
some extent F3A (406). The pilot is honing his skills in the full turnaround
environment with precision, presentation and flow.

 The primary purpose of this class is to develop a pilots proficiency and
skills to:

*      Fly straight and level paths with incorporated maneuvers
*      Fly straight path parallel to the runway
*      Center maneuvers in up and down lines and angles
*      Fly straight up/down vertical lines with incorporated maneuvers
*      Fly accurate angles in up/down lines and maneuvers
*      Properly position maneuvers (Centering, and Turnaround locations)
*      Perform standard Takeoff and Landing maneuvers
*      Perform more complex combinations of maneuvers and elements
*      Perform maneuvers(center and turnaround) with Inverted entries and
exits
*      Fly proper entry/exit lines for maneuvers
*      Perform rolling maneuvers at slower rates to learn multiple stick
inputs
*      Capability to maintain constant track (CG ) of the aircraft in all
attitudes
*      Perform multiple maneuver sequences in the box
*      Perform more complex multiple control input maneuvers( ie -snaps and
spins)
*      Develop a feel for precision, and flow of the total sequence
*      Understand the need for presentation and flow to obtain better scores

Airframe Considerations

Airframes utilized will typically be older top of the line through current
state-of-the-art F3A level models and designs.

Design Considerations

*      Build on the skills developed in Sportsman and Intermediate utilizing
K1,K2, K3, and introducing some K4s to build the skills to prepare the
pilot for the next level, Masters.
*      Need for building the skills first, both airplane trim and flying
skills
*      Start utilizing more complex loop-roll combos including hesitation
rolls beyond 1/2 rolls.
*      Introduce basic snaps and spins. Make them easy as this is the
introduction. Single snaps and full rotation spins, Upright snaps and spins,
but could have Avalanches that are optional positive or negative.
*      Centering skills and Box management for turnarounds. This includes
correction maneuvers after snaps and spins
*      Utilize more complex turnarounds except some of the more complex
snap, spin and figures. Complexity but still maintains some sense of
recovery from a poor maneuver.
*      More inverted flight pushing out of figures but not a bunch of
inverted entries and exits down low.
*      Inverted to inverted rolling should primarily be kept up high (i.e.
triangle loop with full roll inverted to inverted)
*      Rudder work increases to finesse rudder like slow and hesitation
rolls
*      Not too power hungry, or airplane demanding maneuvers like in F3A and
Masters.
*      Utilize mainly basic Shapes (Triangles, Polygon loops, squares) that
build rudder skills. Adding rolls to them to teach the switching of rudder
inputs as the model rolls in vertical and horizontal components.
*      Introduce Upwind and downwind correction elements like the downwind
stall turn. But at this new element level keep it simple to build the skill
*      Goal is for a total sequence K-factor around 50.
*      Goal is 19 maneuvers total including Takeoff and Landing Sequence.

Sequence Structure and Boundaries

The following criteria define the structure and boundaries to be adhered to
in designing a balanced Advanced Sequence covering the required skill sets:

*      Maneuvers shall be selected from the Annex B3 Maneuver Catalogs of
the NSRCA Procedures for AMA Precision Aerobatic Sequence Development. New
maneuvers may be added to the Annex B3 Catalog provided they meet all
criteria set forth in the NSRCA Procedures for AMA Precision Aerobatic
Sequence Development
*      Total K-Factor Range: 48 to 52.
*      Total maneuvers (including Takeoff and Landing): 19.
*      The sequence shall have only one box entry and exit .
*      No more than one(1) of the same family of maneuvers used in the
sequence as a center maneuver. Exceptions to this requirement are stated
below.
*      No more than two(2) of the same family of maneuvers used in the
sequence as turnarounds (i.e. no more than two stall turn variants or half
square loop variants). Humpty bumps shall be the exception with a maximum of
three(3) when one is being used as a cross box maneuver.
*      Minimum of two(2) cross box maneuvers, but no more than  three(3).
*      Minimum of two(2), but no more than three(3) downwind horizontal
rolling maneuvers. Two of these maneuvers are required to be the Slow Roll
and Four(4) point roll.
*      Minimum of two(2), but not more than five(5) maneuvers with a
K-factor of 4.
*      Minimum of two(2), but not more than four(4) stall turns. Maximum of
two(2) turnaround stall turns. One(1) downwind turnaround stall turn is
required.  Maximum of two(2)  turnaround stall turns in conjunction with one
double stall turn type center maneuver (Double stall turns).
*      Maximum of one(1) inverted exit and one(1) inverted entry to/from
inverted flight at low altitude on turnarounds. No turnaround shall have
both an inverted entry and exit.
*      Maximum of two(2) positive snap rolls.  Exception is Avalanches which
are optionally positive or negative.
*      Maximum of one(1) positive upright spin (center maneuver).

  _____

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