My motive for commenting earlier was to keep the flow of ideas going
such that the kids would have exposure to some other aspects of
engineering practiced by the indoor community. I would no recommend
showing up with a F1D style V/P but, given the imagination of the
Students along with the knowledge of what has been done before who
knows what they will come up with.
Having had some of the experiences like Mark described earlier, I have
not and would not blatantly defy the rules. I was however playing with
their wording on the count of "to change pitch." It might be worth a
shot to be creative at regonals if your team can take the hit if your
ideas do not go over well, but at the national level, it is very
possible to win with tried techniques.
Sorry for the misunderstanding about the prop diameter earlier.
High Times and Good Luck to all,
Nick Ray
On 12/4/06, Jim Fackert <jfackert_at_cac.net> wrote:
>
>
>
>
>
>
> ok, good point. So one builds re-trimmable test props then you build a
> prop pitch jig and heat and twist your competition props to the desired
> pitch.
>
> Same net effect.
>
> SO rules are usually enforced quite literally, and one should always
> comply with the "letter of the law" and figure out ways to do what you
> need to do inside the "letter of the law". My strategy is to never
> think that an SO judge (or a coach from a losing cometitors team) will
> let you get away with anything that is not specifically allowed in the
> rules.
>
> Avoid disapointment, but be creative in your approaches to compliance.
> That is an unintended lesson of the SO competitions- rules is rules,
> and rules always have loopholes. (I've never met an SO rule set yet
> that was clear and unambiguous. English is like that. People are like
> that.)
>
> jim
>
> Robert Clemens wrote:
> >
> >
> > Jim Fackert asserted that "they (the Wright Stuff rules) also clearly
> state
> > that
> > the two bladed commercial prop can be cut down or modified to change the
> > pitch. That, in my book, includes twisting or breaking and re-gluing the
> > blade spars, and heating and reforming the blades themselves."
> >
> > Jim, that's a real stretch. Here is a verbatim quote of the WS prop rule:
> >
> > "The propeller must be a single two-bladed commercially available plastic
> > propeller with a maximum diameter of 18.5 cm. Longer propellers may be
> > trimmed to meet this specification. Trimming/shaving/twisting is also
> > permitted to balance and/or reduce the mass of propeller or to change
> > pitch."
> >
> > Where in that wording do you see an approval for breaking and re-gluing
> the
> > prop spar?
>
>
Received on Mon Dec 04 2006 - 19:10:29 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:44 CET