[simpits-tech] Sorry, Gene...

[Cris Harrison]

Ben Jones wrote:

>
> ----- Original Message ----- From: "Bubba" <mysticz28 at swbell.net>
>
>
>>
>>> What exactly do you mean by the aileron and rudder "swapping
>>> jobs"?
>>
>>
>> At low airspeeds most planes don't react as usual to aileron and 
>> rudder. Trying to level the wings with the ailerons induces more yaw 
>> than roll, making the problem worse, and using the rudder to yaw does 
>> a better job raising the low wing because of differential airspeed. 
>> However, 150s don't have enough dihedral to be able to roll with 
>> rudder input, so it doesn't work that way.
>>
>
> I thinks the technical term for this is "adverse aileron yaw" 
> encounted at slow speeds and high angles of attack  its caused by the 
> upgoing aileron creating more drag thus yawing the aircraft , because 
> of the slow speed the down going aileron at high angles of attack 
> doesn't have enough airflow over the wing to creat lift and roll the 
> wing over ......
>
> ie when trying to enter a spin .....
>
> if you want a really interesting spin in a cessna 152 apply full power 
> have a huge angle of attack ( usally out of a zoom climb when you have 
> a high enertia) at the point of loss of forward airspeed apply full 
> rudder in the intended direction of the spin and violently throw in 
> full opposite aileron with full back elevator and wait for a split 
> second .... with my past experiences in spinning aircraft the aircraft 
> will roll into its back inverted in a flick over the top ********* 
> then chop all power to idle as the aircraft roll over inverted  
> ********* when you finally get correct side up neut the ailerons back 
> the centeral position hold full back pressure with the full rudder 
> still in hold it for about 3 revs the centralise all controlls and 
> carry out a standard spin recovery ....
>
> now for the disclamer .....................
>
> being a relative low hour pilot only do this manouver in a cessna 152 
> aerobat with a fully licenced aerobatic rated instructor on board  
> this type of spinning can be verry unnerving to a pilot new to 
> spinning  ...... but can also be verry fun once you are fully 
> conversent with advanced spinning ... btw dont do it with you wife or 
> new girlfriend as vomit on the windscreen and instrument pannel can 
> greatly reduce your vis at a time where you want max vis ( YES i am 
> speaking from experience ) .
>
Was it the chunky type? Or that runny stuff? I have seen both.. and yes 
it does wonders for the windscreen and your panel. It seems to hang 
around for weeks after
it cleaned up.. as you always miss some.
Cris

> and only enter these violent spins at a height of about 6000agl  some 
> times recovery can cause you to loose about 2000 - 3500 feet .
> if you fluff it up or you enjoy the scenery going down , i have had a 
> cessna go inverted, yaw and the flick back the other way even before 
> the nose is down and the rotations begin ..
>
> i have done very tame and standard spind in a cessna 150A model 1962 
> (if my memory serves me correct) but with a huge vertical tail as the 
> old a models had recovery was pretty automatic just a sniff or rudder 
> and "pop" it was out ....... ahh too lame for me
>
> hope my rambelling helps
>
> regards
>
> ben
> bjones at pipecomp.com.au
>
>
>
>
> _______________________________________________
> Simpits-tech mailing list
> Simpits-tech at simpits.org
> http://www.simpits.org/mailman/listinfo/simpits-tech
> To unsubscribe, please see the instructions at the bottom of the above 
> page.  Thanks!
>
>