Re: [Aus-soaring] slip in thermals?

Wed, 16 Jan 2019 16:17:46 -0800 

Thanks, Nick.



Mike


At 09:43 AM 1/17/2019, you wrote:

Mike,
I’m sure this is the wrong answer, but to me it feels more comfortable slightly nose high - so yawstring indicating right rudder required if turning right. I fly with forward c of g which may be a factor.
I have no idea if this is more or less efficient, and I’m under no impression that it’s the optimal method. Just that it feels more comfortable. 

Nick.
On 17 Jan 2019, at 10:09 am, Mike Borgelt <<mailto:[email protected]>[email protected]> wrote:
Yes, to be pedantic it is trailing but common vernacular is to call the back end of the yaw string the direction it is pointing. 

Now can someone answer the questions please?

When circling in a thermal, do you
a) keep the string centered
b) fly with it pointing to the outside of the turn
c) why?


Mike

At 09:12 AM 1/17/2019, you wrote:

Mike,
In your original question,

Part b,

By "pointing" I presume you mean "trailing" ?
To me, in this case "pointing" could be the direction of the forward end of the string.Â
On Thu, 17 Jan. 2019, 9:54 am Mike Borgelt <<mailto:[email protected]> [email protected] wrote: 
So how about answering the questions?

Mike
At 08:51 AM 1/17/2019, you wrote:
and what is the expected differential (gain/loss) with say a 10degree slip indication variation, given all the other factors that determine climb rate. This might b able to be worked out mathematically given the airflows angle on the wing and fuselage drags differences I suspect that are several aerodynamic factors would have to be considered, especially given the the thermal core is dynamic. A question for modern designers perhaps, especially when all aviation design is a trade off 









Richard Frawley
<mailto:[email protected]>[email protected]
We do not inherit the earth from our ancestors, we borrow it from our children
On 17 Jan 2019, at 9:43 am, Mike Borgelt <<mailto:[email protected]> [email protected]> wrote: 
At 07:36 AM 1/17/2019, you wrote:
Perhaps the more important question is how to you tell if one technique is better than another. What is a useful baseline?
Climbing better than the other gliders is the test but what if everybody is using the same less than optimum technique? 
Mike
On 17 Jan 2019, at 7:16 am, Mike Borgelt <<mailto:[email protected]> [email protected]> wrote: 


When circling in a thermal, do you
a) keep the string centered
b) fly with it pointing to the outside of the turn
c) why?

Your technique may not be doing what you think it is.
Mike
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tel:   07 4635 5784     overseas: int+61-7-4635 5784
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