[NSRCA-discussion] PowerPoint Presentations

[Don Ramsey]

A slow roll is acceptable.

DR

----- Original Message ----- 
From: "Ed Miller" <edbon85 at charter.net>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Sunday, July 02, 2006 3:49 PM
Subject: Re: [NSRCA-discussion] PowerPoint Presentations


> Concerning the Master schedule 1/2 loop with full roll out.  Is a slow 
> roll
> acceptable on the full roll out or must it be a fast axial roll ??
> Ed M.
> ----- Original Message ----- 
> From: "Don Ramsey" <don.ramsey at cox.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Sent: Sunday, July 02, 2006 11:54 AM
> Subject: Re: [NSRCA-discussion] PowerPoint Presentations
>
>
>> Adam,
>>
>> 404-2:    The stall turn must be in the direction of flight.
>> 404-7:    The humpty is defined as 1/4 roll up and 3/4 roll down.  That's
>> 3/4 down and not 3 of 4.
>> 404-12:  Slow roll should be a minimum of 3 seconds
>> 404-18:  AMA rule on snaps is on page 78 of the rulebook.  You can get to
>> the rulebook through the judging site where the Powerpoint presentations
>> are
>> found.  But in a nutshell:
>> 1. Since the maneuver is defined as a stall maneuver (initiated by a 
>> rapid
>> stall of the wing induced by a change in pitch attitude), the nose of the
>> fuselage should show a definite break from the flight path in the
>> direction
>> of the snap (positive or negative) while the track closely maintains the
>> flight path. The track visualized as the path of the Center of Gravity
>> (CG)
>> should ideally follow the geometric flight path of the maneuver while the
>> nose and tail autorotate through opposite helical arcs around the flight
>> path. A snap  that does not show a break and stall to initiate the snap,
>> but
>> does enter a stalled attitude during the maneuver is severely downgraded.
>>
>> So
>> * lack of a definite break of the nose is not a zero but severe downgrade
>> * track of CG should ideally follow the geometry of the maneuver for max
>> points
>> Other Points:
>> * Barrel roll or axial roll is a zero
>> * Speed of snap is not a judging criteria
>> * Airspeed may decrease in the snap with no downgrade
>> * If model is roll to a finish the downgrade is applied using 1 pt per 15
>> degree rule.
>>
>> Don
>>
>>
>> ----- Original Message ----- 
>> From: "Adam Glatt" <adam.g at sasktel.net>
>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> Sent: Sunday, July 02, 2006 10:29 AM
>> Subject: Re: [NSRCA-discussion] PowerPoint Presentations
>>
>>
>>> Good stuff, Don.  These are very helpful for learning a schedule that
>>> you don't fly.
>>>
>>> I have a few questions about judging Masters that I recommend should be
>>> answered on the presentation.
>>>
>>> 404-2:  Does the stall turn itself have to rotate in the upwind
>>> direction?
>>> 404-7:  There seems to be an option here, but 2of2 has the same name as
>>> 1of2, though the Arrestis are different.
>>> 404-12:  What is the rule book definition of 'slow?'
>>> 404-18:  The rulebook definition/description of a snap?
>>>
>>> -Adam
>>>
>>> Don Ramsey wrote:
>>>> For those who may be judging Advanced, Masters, P-07 and especially
>>>> F3A wednesday judges for F-07 there are PowerPoint presentations on
>>>> the NSRCA judging page
>>>> http://www.nsrca.org/competition/judging/judging.htm.  Look for the
>>>> link near the bottom of the Judging Home Page.
>>>>
>>>> Don
>>>>
>>>> ------------------------------------------------------------------------
>>>>
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>>
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