Personally I think the specific rule about allowing pre-built propeller
assemblies trumps the general rule about pre-glued parts.
On 11/22/2014 10:52 AM, leop_at_lyradev.com [Indoor_Construction] wrote:
>
> All,
>
>
> There are two Ikara props of about 24cm in diameter. The one most
> used (and the better of the two in most people's opinion) is the "fat"
> 24cm (9.5" ) prop. I think Bill Gowen cut his blades off from one of
> these props. Chris Goins' Double Trouble plans showed how this prop's
> blade is thinned (and trimmed, if desired).
>
> Second, I can understand Don's confusion about "pre-assembled" props.
> The Ikara prop have been allowed in the past when only commercially
> made plastic propellers were allowed. Yes, the blades of the Ikara
> plastic prop are pre-glued to the cross spar. But, I think this Ikara
> prop is clearly within the intent of the rules, although we will need
> to yield to the statements of the event supervisors (perhaps this
> point should be addressed in the FAQ or the rules clarification).
> However, Don's concern leads to a more serious question. This would
> come up if a kit had a pre-assembled balsa bladed prop. Such props
> are not really commercially made and would be against the spirit and
> intent of the rules if not the letter.
>
> Finally, Rule 3.g. requires all planes to have "at least one
> non-horizontal surface" "covered in a non-transparent, non-white
> material so it can be identified at its maximum altitude." There is
> no bonus for this required covering.
>
> LeoP
>
>
Received on Sun Nov 23 2014 - 07:16:02 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:48 CET