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h3. Proposal from

Wojtek DOMAƃSKI (POL)

h3. Proposal title

01a - Change of jets

h3. Existing text

4.17.4 An aircraft shall fly throughout the championships as a single structural entity using the same set of components used on the first day. However, propellers may be changed to enhance performance providing that the weight limit of the aircraft is not exceeded, and that the certificate of airworthiness is not prejudiced.

h3. New text

{panel}
4.17.4 An aircraft shall fly throughout the championships as a single structural entity using the same set of components used on the first day. However, propellers {color:#ff0000}or carburettor jets{color} may be changed {color:#ff0000}(before a task){color} to enhance performance providing that the weight limit of the aircraft is not exceeded, and that the certificate of airworthiness is not prejudiced.
{panel}

h3. Reason

The issue of possibility to change jets before a task was widely discussed during the briefings of WPC'2016 in Popham. A majority of team leaders and pilots opted for allowing such a possibility within Section 10. Arguments are:

\- possibility of jet changes will balance fairness to pilots flying with motors with diaphragm pump,

\- amendment to section 10 will sanction the practise of jet changes done silently anyway.