[NSRCA-discussion] unknowns

[Bill's Email]

Vicente "Vince" Bortone wrote:
>
> Doug,
>
>  
>
> You are correct.  I just wanted to say that there is a maneuvers 
> called slow roll that is not mention in the IMAC rule book.  I got the 
> description from the IAC web site.  Here the description:
>
>  
>
> *Slow rolls *have to be flown normally on a straight line (exception 
> is the avalanche). The roll rate has to be constant and the 
> longitudinal axis of the plane has to go straight. *This requires 
> constantly changing rudder and elevator control inputs throughout the 
> roll. *
>
>  
>
> I wonder how this maneuver is judged.  Base on the description it is 
> required to use rudder and elevator.  I suspect that the judge has the 
> authority to downgrade if the pilots is trying to avoid using rudder 
> and elevator during the roll.  I really don't know how this is done in 
> the real planes but I will guess that a pilot will try to do 
> slower roll rate to get maximum points.  Again, I could be wrong in my 
> interpretation and I am sure that you will know more details.     
>
>
> Vicente "Vince" Bortone
>
IAC does have a "slow roll" in the glider catalog. As Doug said, the 
traditional "slow roll" merely means a normal aileron roll without any 
hesitations (points). Nothing in the description you quoted mentions a 
particular roll rate, only that the rate must be constant.

As far as control inputs go, if you want to see an IAC judge laughs 
themselves unconscious tell them that you think a figure should be 
downgraded because the pilot failed to use the rudder or what ever.

In IAC and IMAC it does not matter how a pilot achieves the criteria, 
all that matters is how well those criteria are met. Period.

And Doug is right about the IAC roll rate. They will roll as fast as the 
plane is capable of rolling. 


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