Author Topic: sliping a Chipmunk  (Read 1469 times)

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Offline chipmunk22a

  • Posts: 18
sliping a Chipmunk
« on: Thursday January 18, 2007, 18:45:46 UTC »
For what it's worth,

I just had to add my 2 cents worth about sliping Chipmunks.So,here goes....
There is no problem with the structure of the wing flaps to prevent sliping a Chipmunk.

There is a general rule as to flying a low wing airplane and doing slips.The consept is that the action of sliping a low wing aircraft causes an airflow disturbance that blankets the tail surfaces.So,with a little imigination one can figure the outcome.

I have done plenty of slips in the Chipmunk and feel that this general does NOT apply to the Chipmunk.

However, I'm sure that are other low wing airplanes that shouldn't be sliped.A Mooney comes to mind right from the start.There was a guy that used to teach spin recovery for the Mooney,notice I said 'used' to be.

Thanks your time,
Robert

Offline Stewart

  • Posts: 27
Re: sliping a Chipmunk
« Reply #1 on: Thursday January 18, 2007, 20:18:08 UTC »
There have been a few threads on this subject.
I have a view based on the following:

Late release a/c, from 1990's have upward of 12,000 RAF indtructional hours on them. Early released examples, say 4,000 of the same. Average 8,000 hours over 120+ on the UK register alone, total around 1 million instuctional hours. Probably double that if you look at the worldwide fleet.
If there had been a problem, I would hope that someone would have identified and sorted it long before now.

My twopenn'th.
 Stewart

Offline Dean Cross

  • Pilot
  • Moderator
  • Posts: 381
Re: sliping a Chipmunk
« Reply #2 on: Thursday January 18, 2007, 20:28:24 UTC »
I agree.

Offline chipmunk22a

  • Posts: 18
Re: sliping a Chipmunk
« Reply #3 on: Thursday January 18, 2007, 23:55:08 UTC »
Yes!!!!!!!!!
 
The Chipmunk has to be among the best of the best airplanes for stability or any other means to measure her by.

I've given my share of demonstration flights and everyone seems to agree
that once they have touched the controls of a Chipmunk there really isn't a need to build any other kind of aircraft.

My point of starting this thread was to try and answer any reasoning for NOT sliping a Chipmunk which there truely isn't.

I had the pleasure to solo a Chipmunk on my 16th birthday and have used
the Chipmunk as a yardstick to measure up all the other airplanes I've flown since.Needless to say that the Chipmunk still takes the lead.

Take Care,
Robert

 

Offline Guano

  • Posts: 4
Re: sliping a Chipmunk
« Reply #4 on: Saturday January 20, 2007, 01:08:42 UTC »
Slipping the chippy,

There is a problem in slipping the Chippy. Like all aircraft if abused the ac will behave badly.

On normal ops it is not a problem, however if you let the speed decay, to approx 45 kts, the ac MAY depart quite violently in the opposite direction to the slip.

It does not always happen, but an interesting thing to try at height. You loose about 500ft. I believe and am happy to be corrected, but there was a fatal at HUS BOS a number of years ago where this may have happened.

Now when flown at the correct speed, there is something incredibly satisfying about a slipping. curving approach to roll out to a three pointer.

Like all the best women, provides immense satisfaction unless mishandled.

Regards to all

Nige

Offline Rod Blievers

  • Posts: 120
Re: sliping a Chipmunk
« Reply #5 on: Saturday January 20, 2007, 21:53:45 UTC »
There are many postings on a variation of this subject, i.e. side-slipping with flap extended, under "Licencing & Training".

Cheers,

Rod.

Offline Stewart

  • Posts: 27
Re: sliping a Chipmunk
« Reply #6 on: Tuesday January 23, 2007, 22:19:27 UTC »
Nige,

You are right and my post was maybe a bit tright, albeit my head was more focussed on the "flap cable failure modes and effects when highly loaded" which was the tone of previous threads I referred to.

There is a point in the 'increasing aileron, more top rudder' process of a slipping turn where, with max top rudder and lack of attention to decaying speed, the beastie can flick quite violently into an opposite insipient spin. I've had this demonstrated from a left hand slipping turn with a modest amount of power - probaly the worst configuration.

It's quite reasonable of the Chippy to give up being friendly at this extreme stage of abuse of crossed controls and airspeed approaching the stall.

From memory, there was more than adequate prior warning from sloppy controls and buffet to warn that things were about to go seriously wrong.

Chipmunks teach flying, other stuff is just for traing pilots - discuss.