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ACRO E-mail Archive Thread: [IAC-L:1594] Re: Aircraft and categories

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ACRO E-mail Archive Thread: [IAC-L:1594] Re: Aircraft and categories


Thread: [IAC-L:1594] Re: Aircraft and categories

Message: [IAC-L:1594] Re: Aircraft and categories

Follow-Up To: ACRO Email list (for List Members only)

From: ACCassidy at

Date: Tue, 28 Oct 1997 15:46:31 UTC


 << Don Peterson writes:
  > ...
  > And, I don't think having some people move down is a tragedy.  If one 
  > wants to fly only -1G maneuvers, then the category which uses a Citabria 
  > 7ECA or Clip Wing cub as its design standard is the right one for you.  
  > If you want to fly +6-3, then the category built around a Decathlon is 
  > right.  Everyone is free to choose.
  > ...>>
Kim Reniska writes:

 I don't disagree with you. But I am curious about something. If Sportsman
 should de designed around Citabrias and Intermeiate is to be designed around

 Decathlons. What aircaft are the Advanced and Unlimited designed around?
 Is it a Pitts for Advanced and a Sukhoi for Unlimited?
 If so, does it make sense to allow someone to fly a Sukhoi in Intermediate?
 Doesn't that give them an unfair advantage over the Decathlon driver?
 But it's not practical (or is it?) to expect a inexperienced pilot who has
 bought a Sukhoi to start competing in the Unlimited category. Or a new Pitts
 owner to enter his first competition in the Advanced category?
 Kim >>

I'm not trying to steal any credit due Don for his forward thinking, but at
least some of his ideas seem to equate in a way with what we do over here in
UK.  I am the principal sequence designer for Known and Unknowns at our
contests, and these are always drawn with a MINIMUM AIRCRAFT in mind.

So Standard (Sportsman eq) sequences are put together so that they can be
flown in a Cessna Aerobat, Fournier RF4, Tiger Moth even.  It seems hammers
are OK in aerobats here - though we have no Citabrias competing.
 Intermediate is drawn so that a Stampe can do it - we don't seem to have any
Decathlons here.  Advanced is composed with the CAP-10 and Pitts S2A in mind.
 Unlimited is probably capable in a hot S1S, but no-one here has flown this
category in a biplane for several years now.

I have now been heavily involved in setting sequences, running contests and
judging for several years.  I have seen absolutely no evidence to suggest
that pilots flying high-performance aircraft at lower categories get
significantly higher scores than their flying justifies.  Some figures are
easier in the more powerful planes, but some things are harder too.  Staying
in the box can be really difficult, as can thinking properly under the higher

Alan Cassidy


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