[NSRCA-discussion] Masters 2009: Two 2/2 reversed

rcmaster199 at aol.com rcmaster199 at aol.com
Mon Mar 2 10:28:29 AKST 2009


Keith,

I'm not certain I got your meaning in your last sentence of the long 
paragraph.

Anyway, the maneuver is straight forward for those who are still 
uncertain:

enter downwind,
half roll to inverted
hold until short distance before center
half roll to upright (same roll direction as first roll element)....
as wings get horizontal, make sure you are at center
immediately start the next half roll in the opposite direction
hold the inverted
half roll to upright (same roll direction as third roll element)....

Instant model reaches horizontal again, geometry is finished....don't 
forget the S&L after to make the maneuver complete

Downgrades as shown in the Wallace PPP

MattK

-----Original Message-----
From: Keith Black <tkeithblack at gmail.com>
To: 'General pattern discussion' <nsrca-discussion at lists.nsrca.org>
Sent: Sun, 1 Mar 2009 11:18 pm
Subject: Re: [NSRCA-discussion] Masters 2009: Two 2/2 reversed

This will make centering the maneuver more difficult (since you can't 
draw the line out to compensate for getting there early), however, I 
think it should make the maneuver easier to fit in the box. With a good 
tail wind inserting three pauses with four unrushed half rolls eats up 
the box REAL quickly. This allows us to fly two 2/2 rolls on each side 
of center going all the way to center to complete the 2 of 2.

I'm anxious to give this a try.

Keith


-----Original Message-----
 From: nsrc
a-discussion-bounces at lists.nsrca.org 
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of 
rcmaster199 at aol.com
Sent: Sunday, March 01, 2009 5:33 PM
To: nsrca-discussion at lists.nsrca.org; glen59shep at yahoo.com
Subject: Re: [NSRCA-discussion] Masters 2009: Two 2/2 reversed

Reversal is immediate. Point rolls require hesitation

Immediate reversal means as soon as model's wing reach horizontal,
model needs to start the opposite roll. There are situations in
maneuvers where opposite rolling elements are present (Reverse Point
Roll, Reverse Knife Edge,etc., for example) where reversal MUST NOT
happen immediately because a hesitation must be flown of some duration.

But in TWO, 2/2 Rolls Opposite, the description requires 2 individual
and complete 2/2 rolls to be done, in opposite directions. This follows
established precedent (first done in F3A assymetric rolling maneuvers)
where two different rolls were required in opposite directions.  I am
pretty sure F3A folks remember the 1 1/2 Snap. 4/8 Roll opposite they
flew about 6 or 7 years ago. It was the first such maneuver introduced
into Pattern

MattK

-----Original Message-----
From: Scott Smith <js.smith at verizon.net>
To: glen59shep at yahoo.com; 'General pattern discussion'
<nsrca-discussion at lists.nsrca.org>
Sent: Sun, 1 Mar 2009 4:15 pm
Subject: Re: [NSRCA-discussion] Masters 2009: Two 2/2 reversed

Look a little further down:



Two of Two Point Rolls Reversed – From level upright or inverted flight,
model performs one-ha
lf (1/2) roll to level inverted/upright flight,
hesitates,
performs another one-half (1/2) roll in the same direction to level
upright/inverted
flight. Immediately the model
performs one-half (1/2) roll to level inverted/upright fli
ght in the
opposite
direction to the 1st two half rolls, hesitates, performs
another one-half (1/2) roll in the same direction to level
upright/inverted
flight.











From:
nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Glen
Shepherd

Sent: Sunday, March 01, 2009 4:06
PM

To: nsrca-discussion at lists.nsrca.org

Subject: [NSRCA-discussion]
Masters 2009: Two 2/2 reversed







  I checked the RCA and I didn't see anything for Two
  (2) , 2/2 Reversed. I used the NSRCA link to the RCA


  2009-2010 RCA-32: "

  Two
   (2), Two of Four (2/4pt) Point Rolls Reversed: From inverted flight.
Model rolls
   through 180 degrees, hesitating at each 90 degree point. Then rolls
through
   180 degrees in the opposite direction hesitating at each 90 degree
point. At
    each hesitation wings are parallel or vertical to the horizon. 
Center
is
  middle of upright flight. Downgrades:
  1. One-quarter rolls more or less than
  90 degrees
  2. Model does not
  hesitate after each one-quarter roll
  3. Roll rate not constant
  4. Changes in altitude
  5. Ch
anges in heading
  Two
   point (2/2pt) roll – slow roll reversed: Model performs a two point
(2/2pt) roll, immediately
   performs a slow roll in the opposite direction. See descriptions
of
two point
   roll and slow roll for requirements and downgrades for all elements
except
   centering. Roll rates need not be the same for the two point (2/2pt)
and the
  slow roll. Downgrades:
  1. Centering. The center of the maneuver
   is determined as the middle of combined roll elements. Center is
determined
   by the midpoint between the start of the two point (2/2pt) roll and
finish of
  the slow roll.
  2. Roll reversal not immediate.

  Glen Shapherd
  NSRCA 3017







 _______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion


_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion

_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion




More information about the NSRCA-discussion mailing list