I think enforce ability would be a major issue. I know people who can make
exact copies of commercial hubs.
Also it should be considered that allowing purchased hubs would remove a
major stumbling block for fliers wanting to start out in F1D.
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On Sat, Feb 17, 2018 at 10:58 AM, leop_at_lyradev.com [Indoor_Construction] <
Indoor_Construction_at_yahoogroups.com> wrote:
>
>
> John and all,
>
> My comment was made just to answer Aki's questions that the organizers are
> NOT making any decision or comment on the legality of using purchased vp
> hubs at the upcoming Indoor WC at West Baden. Those rule interpretations,
> as John knows, are ultimately made by the Jury. And, I do not know of any
> scheduled discussion of this issue at the WC. The organizers will not be
> running the event as that is the job of the CD and the other officials, who
> all answer to the Jury if there are any problems (protests?) or issues that
> need clarification.
>
> We must all remember that rules need interpretations. A good example is
> the explicit and seemingly clear FAI rule for F1D motors:
>
> 3.4.2. Maximum weight of the lubricated rubber motor ...........0.4 g.
>
> However, every flier, Including John, has been allowed to and does wipe
> their motor clean of debris and lube before weighing. Without this
> allowance, the debris the lubed motor picks up upon landing on an often
> dirty floor would increase the weight of the motor.
>
> Finally, the past and current use of purchased vp hubs is not an
> interpretation or change in the rules. But, it is, as John knows, part of
> the larger picture of what has been and will be done at contests. I think
> that too many fliers, including John, have looked the other way when
> non-top level fliers have used such parts in the past. Now that some top
> level fliers are using purchased vp hubs while setting World and national
> records and will use them at the upcoming Indoor WC, it may be too late to
> change course. This is especially so when it appears that a significant
> fraction of all F1D fliers use purchased vp hubs in sanctioned contests
> worldwide. Maybe purchased vp hubs will be considered the same as
> purchased prop bearings with respect to the FAI's BOM rule. We need to
> look at the best balance in such things. We would not want to require that
> fliers cut their own balsa sheet from raw balsa lumber just as we may not
> want the purchase of fully assembled and complete planes either. The
> question is where to draw the line and we must take into consideration
> everything from past and current use to enforceability when we decide.
>
> LeoP
>
>
>
>
Received on Sat Feb 17 2018 - 16:33:12 CET