Don,
Good point. I also had trouble finding information about what is F1D and
where are the official rules. Before (and after) the recent World
Championship, there was all this discussion about interpretation of the
"Builder of Model" (BOM) rule and how that applied to purchased variable
pitch (VP) propeller hubs, but I did not see the exact wording the rules
stated. So I did some (a lot of) searching and I found this website:
https://www.fai.org/commission/ciam​
And here are the F1D rules (aka "Sporting Code") for 2018:
https://www.fai.org/sites/default/files/documents/sc4_vol_f1_freeflight_18.pdf
In Section 3.4.2, it says,
"
3.4.2. Characteristics of Indoor Model Aircraft F1D
Maximum wingspan of the monoplane model ................550 mm,
Maximum chord of the lifting surfaces ..........................200 mm
Maximum tail span
.......................................................450 mm,
Minimum weight without rubber motor ..........................1.4 g,
Maximum weight of the lubricated rubber motor ...........0.4 g.
The competitor must be the builder of the models entered.
The model shall carry the FAI unique ID number of the competitor on the
motorstick written with
permanent marker or other non-removable means.
"
That's it. Surprisingly simple. There are more rules, of course, about the
competition, but these are the main specifications to qualify as a F1D
model.
But you are right. Convenient (and should I say, obvious) access to rules
that govern the sport would help newcomers get into this sport easier.
Also, I'm with you in wanting to just build a F1D-like plane that flies
even half the time of world-class flights. That would be a good starting
point.
David Goorskey
On Thu, Apr 5, 2018 at 11:43 AM, dweigt47_at_gmail.com [Indoor_Construction] <
Indoor_Construction_at_yahoogroups.com> wrote:
>
>
> F1D has more issues than finding mentors and rare and out of production
> tools and supplies.
>
> I probably never will be an active indoor flyer, but thought I should know
> the definition for a legal F1D. Personally, as someone who never competed
> in FAI events, I find their labels unhelpful...
>
> Where to find the rules for F1D? How about my good ol' AMA website? After
> poking around it for a while, I found it said to refer to the FAI rules. No
> link, no info on where to start! FAI is flown in this country, clearly, so
> why not list the rules somewhere, or at least provide a link? A link might
> be best, as any copy on the AMA site could be out of date, a link to the
> FAI rules should be current.
>
> Maybe I gave up too easily, but I still don't know the rules that must be
> met for a model to be an F1D. How are you going to interest people in an
> event without an accessible definition of it?
>
> The majestic flight of these models as seen in videos is awe inspiring.
> But, which models qualify as F1D? If I wanted to make a basic model that
> fit the F1D category, though certainly not competitive, what would it take?
> I gather from lurking that there's no such thing as a simple entry level
> F1D: that people develop their skills in other events.
>
> I know that at the highest performance levels, it takes a lot of work to
> gain a small amount of additional performance. But, how hard would it be to
> make a model to the F1D rules that had the potential of flying half as long?
>
> Don Weigt
> AMA 17042
>
>
Received on Thu Apr 05 2018 - 16:15:03 CEST