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Wing Drop, Aerotow vs Winch, Grass vs Pavement.



 
 
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  #21  
Old March 23rd 21, 06:28 PM posted to rec.aviation.soaring
John Sinclair[_5_]
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Default Wing Drop, Aerotow vs Winch, Grass vs Pavement.

On Tuesday, March 23, 2021 at 9:20:53 AM UTC-7, Dan Marotta wrote:
Not so much if the wing tanks are full and not interconnected.

Dan
5J
On 3/22/21 6:41 PM, waremark wrote:
Someone mentioned water ballast - I think that is very significant, as a low wing allows water to flow towards the tip and make that wing heavier, making recovery less likely.



I believe a nose tow hook reduces lateral excursions, but not all ! There was a Genesis-2 take off accident where the slack was not all taken out before starting tow. This resulted in glider pitching down on the nose wheel which is mounted on a 36” fiberglass shock strut which then sprung the nose up! It’s called the Hobby-horse effect which is annoying, but not all that dangerous, unless a wing tip touches the ground as the fuselage is pitching down. This can (and has) resulted in the glider cartwheeling and ended up inverted!
If you’d ship doesn’t have a nose tow hook I’d investigate having one installed!
Be safe out there and keep a hand on the tow release during takeoff!
JJ
  #22  
Old March 24th 21, 01:34 PM posted to rec.aviation.soaring
Tango Eight
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Default Wing Drop, Aerotow vs Winch, Grass vs Pavement.

On Tuesday, March 23, 2021 at 1:28:47 PM UTC-4, John Sinclair wrote:
I believe a nose tow hook reduces lateral excursions, but not all !


It's true that at the very beginning of the launch, the nose hook improves tracking. It's also true that once aerodynamic control is achieved that the rudder works better with a CG hook, and the rudder often (this is type dependent) works better for picking up a low wing than aileron input.

In all cases, the only thing that beats pilot skill is pilot judgement.

The release knob is the most under rated control in the cockpit.

T8


 




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