sweetpea01
Posts: 1753
Joined: 10/21/2003
From: Oak Harbor,
WA, USA
Status: offline
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quote:
ORIGINAL: Silent-AV8R
Except he said Basic, so the IAC thing does not apply. No pattern plane or Stik ever flew in IAC, but they are perfectly legal in Basic. Sportsman and above the scale aircraft rule applies.
But this rule DOES apply, even to Basic:
• 4. Model Aircraft Specifications.
4.1. Only one (1) propeller per aircraft
shall be allowed. Internal combustion
reciprocating engines and electric motors shall be allowed.
If the aircraft is utilizing an internal
combustion engine, only one (1) engine shall be
allowed. If the aircraft is utilizing electric
motors, more than one (1) electric motor may be
used.
So, turbines are NOT allowed. End of story. Sorry. Now an individual CD can certainly waive this rule, but Sweetpea I know for one would never do such a thing since a rule is a rule!! The rule explicitly states that the motive force MUST be either a reciprocating engine or an electric motor. Turbines are not allowed.
And speaking of the rule Sweetpea quoted, heres is the actual rule:
3.1. The events accommodate aerobatic
monoplanes and biplanes which are replicas of
types known to have competed in International
Aerobatic Club (IAC) competition, or replicas of
types known to be capable of aerobatic
competition within the airspace know as the
“Box.”
And sorry Sweetpea, a P-51 has been shown to be capable of aerobatics inside the airspace known as the "Box" and is therefore legal. Fred pointed this out a few years back when this question was hotly debated.
Thanks for clarifing all the rules.
I understand Basic is bring what you got. I doubt any CD in any country would tell a turbo prop guy they couldn't fly in Basic. Show me your AMA turbine waiver, safety gear and you would be good to go in the basic class. I'm actually very flexible in the Basic class.....that is what it is for, to bring folks into IMAC. Once you move up then its time to get serious.
The AMA rules were written before Turbo prop aerobatic planes were available to the modeling public. I would expect to see a rule change when more turbo prop models become available like the Toucan.
I did not know that a P-51 had made legal......but as I stated earlier it is still up to the contestant to show the CD that the said model is legal. Since I don't know Fred nor how it was deemed legal I would have to ask for proof. Of course if I was flying a model like that I would carry my proof with me to every contest until it was common knowledge by all modelers.
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Turboprop in IMAC - 
