UIM · Fuel

Long-distance fuel filling system (stopper and tank connection), UIM

The only part-legality derogation any UIM discipline grants.

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This is one body's answer, not the sport's. You are bound by whichever body sanctions the event you enter. If you race more than one series, build to the stricter answer. The differences are set out in the rulebook comparison.

This is a discipline-scoped permission, not a class-scoped one. The same craft running a circuit race cannot use it.

Where it stands, class by class

24 classes, grouped where the same rule gives the same answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules. 8 of them borrow another class’s rules and are marked below; for those, the link to the parent class is read from the categories table rather than stated in the rulebook. 8 publish no rule for this part and name no parent to borrow one from, and are grouped together at the end.

What each answer below means

Not permitted, not listed in the rules

Treat it as coming off. The class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list, so this is our reading rather than a rule we can quote at you.

Legal, with conditions

Keep it, but measure it: the rules permit this part only inside stated limits.

No rule, this is an open class

Probably keep it. The class carries no stock clause at all, so anything unlisted appears to be open. The rulebook does not say so in terms, and this is our reading rather than a permission anybody wrote down.

No rule published for this class

Unanswerable here. This class publishes no rule for the part and names no parent class to borrow one from, which is an absence in the rulebook and not a permission.

Not permitted, not listed in the rules 9 classes

Not listed in this class. Illegal under the class's own stock clause.

• Runabout GP4 · 502.01
• Ski Division GP4 · 501.01
• Ski Division GP3 · 501.02
• Ski Division GP2 · 501.03
• Runabout Juniors GP4 · 302.01 · borrows another class
• Runabout Ladies GP4 · 302.01.01 · borrows another class
• Ski Juniors GP3.2 · 302.01 · borrows another class
• Ski Juniors GP3.3 · 302.01 · borrows another class
• Ski Juniors GP4 · 302.01 · borrows another class

Legal, with conditions 4 classes

Legal ONLY when the craft is entered in Jet Raid, Offshore or Endurance. It must be fixed at the surface of the hull, and filling into an internal cavity of the hull is prohibited. · 318.14

• Runabout GP3
• Runabout GP2
• Runabout GP1
• Runabout Veterans GP1 · borrows another class

No rule, this is an open class 3 classes

No article covering this part. Free under the open-list reading of GP1.

• Ski Division GP1 · 501.04
• Ski Ladies GP1 · 314 · borrows another class
• Ski Veterans GP1 · 302.01.05 · borrows another class

No rule published for this class 8 classes

No component rules are published for this class and no single parent class is named, so this part cannot be answered for it. That is an absence in the rulebook, not a permission.

• Endurance · 317.03
• Freestyle Amateur · 312
• Freestyle Free · 312
• Jet Raid · 317.01
• Offshore · 317.02
• Parallel Slalom · 313
• Ski Future Electric (SFE) · 302.01
• UIM Hydro-Fly · 900

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Long-distance fuel filling system (stopper and tank connection): if the rule your class applies reads differently to you, or the rulebook has changed since this was read, ask. We answer with the section we read it from, or that we have not read it. Ask a rules question.

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