Re: Re: P-18 plans and Specs

From: Chris <pseshooter3d_at_yahoo.com>
Date: Fri, 1 Apr 2016 09:45:57 -0400

The idea for this event is to be an easy idea for beginners to get into. It also hasn't been adopted by the AMA as an official event. To me it seems that now would be the time to change prop rules, as it would only require informing everyone as such.

Just my $.02.
Chris


Sent from my iPhone

> On Apr 1, 2016, at 9:39 AM, William Carney wcarneyjx_at_gmail.com [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>
> Good question Ken.
>
> Bill C
>
>> On Mar 31, 2016 9:00 PM, "Ken Achee ken_at_achee.com [Indoor_Construction]" <Indoor_Construction_at_yahoogroups.com> wrote:
>>
>> Why was the limit put at 5.5". Wouldn't it be a lot easier to find props if the diameter was increased to 6"?
>>
>>
>>> On Thu, Mar 31, 2016 at 9:55 PM, Manuel Cisneros macs8953_at_yahoo.com [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>>>
>>> Regarding the search for plastic props for P-18, is there any thought to using the Ikara 4.3" prop? What it missing in diameter may be made up by the wider chord.
>>>
>>>
>>> At .6 gm it would seem a lightweight alternative to the typical 5-5.5" garden variety prop, and that may be with the included bearing and spinner.
>>>
>>> Manuel.
>>>
>>> Sent due to the efforts of Engineers
>>>
>>>
>>>
>>> I'm not necessarily looking for an entire assembly, just any 5.5" prop that I can find at a store or my local hobby shop. At this point I'm going to settle for one of the 5" props I have and see how it goes. I have one from a Guillows model, and another from an Estes model.
>>>
>>> The proposal had the rules below.
>>>
>>> 27. P-18 event 227
>>> 27.1 Except for the specific rules that apply to this event, the rules for free flight rubber hand launched stick shall apply.
>>> 27.2 The model shall be a rubber powered monoplane covered with either tissue or HDPE plastic shopping bag material.
>>> 27.3 The wing shall not exceed 4.5 inch chord and projected span of 18 inches. Horizontal stabilizer shall not exceed maximum span of 9 inches with a maximum chord of 3.5 inches. Maximum overall length, including the propeller shall not exceed 18 inches.
>>> 27.4 The propeller shall be an unmodified commercially available unit with a maximum diameter of 5.5 inches. Weight may be added to the blade for balancing.
>>> 27.5 The maximum hook to hook distance shall not exceed 10 inches.
>>> 27.6. The minimum weight of the completed model, less rubber, shall be 7.5 grams.
>>>
>>>> On Thu, Mar 31, 2016 at 7:41 AM, mkirda_at_sbcglobal.net [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>>>>
>>>> Where are the 'official' rules for P18 located?
>>>>
>>>> Regards.
>>>> Mike Kirda
>>>>
>
>
Received on Fri Apr 01 2016 - 06:46:00 CEST