Re: Re: 6" props for P-18

From: Don DeLoach <ddeloach_at_comcast.net>
Date: Mon, 13 Mar 2017 15:14:52 -0600

Unmodified props have worked rather well for ~40 years in P-30.


"The perfect is the enemy of the good."


DD


> On Mar 13, 2017, at 12:50 PM, William Gowen wdgowen_at_gmail.com [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>
> To get a little more serious I think the unmodified prop rule is leading to a ridiculous situation. People who are discussing props here are talking about going thru a bunch of props from different makers to find ones that are usable. The beginning flier who builds a P-18 from a kit is not going to know whether he has a prop with wildly unequally pitched blades until the model tries to shake itself apart in the air. And then the rules prevent him/her or a helpful more experienced flier from making a simple adjustment that will fix the problem.
>
> I think at a minimum a person should be able to adjust the pitch of the prop.
>
>> On Mon, Mar 13, 2017 at 1:23 PM, Rey Mazzocco aprivpilot_at_aol.com [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com> wrote:
>>
>>
>> I'm not sure how you define an expert, but I'm definitely not one! But I digress....
>>
>> Our mutual friend Randall K wanted to get into indoor rubber and had many excellent questions. My daughter also wants to get started. In doing some research for them it piqued my interest in building one. Good for banging around the local gym and not worrying about breaking anything. Also, helps me help them. AND, all the propeller data was published for ALL to see on Hippocket. With the rules the way they are, I don't see where any particular design will be better than any other. Just good clean fun!
>>
>> Rey
>>
>> -----Original Message-----
>> From: 'William D. Gowen' wdgowen_at_gmail.com [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com>
>> To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
>> Sent: Mon, Mar 13, 2017 12:09 pm
>> Subject: Re: [Indoor_Construction] Re: 6" props for P-18
>>
>>
>> I wonder what the proposers of the P-18 event think about all the expert interest? Probably not happy about it IMHO.
>>
>> On 3/13/2017 10:11 AM, Rey Mazzocco aprivpilot_at_aol.com [Indoor_Construction] wrote:
>>
>> Ray,
>>
>> I had posted this info on Hippocket a few days ago. Pitch measured on A to Z gauge at 2" radius. Pictures are on that site:
>>
>> Williams Bros. 5.5" 2.57g 5.9"P
>> Peck 6" 1.81g 3.8"P
>> Kaysun 6" 2.72g 6.1"P
>> Tern Aero 6" 2.95g 6.1"P
>> OS-150 5.75" 1.84g 5.3"P
>> Pitsco 6" 2.75g 5.1"P Measured by Bill on Hippocket
>> Unknown(red) 5.5" 1.60g 6.7"P Blade shape like old Sleek Streak
>> Unknown(red) 5.375" 1.79g 9.1"P Blade shape like old Sleek Streak
>>
>> I actually have multiples of most of these except the last one. Some aren't useable due to unequal pitch between the blades.
>>
>> The last prop has a counterbore molded into the front and a "1" molded on the back of one of the blades. Wish I knew where this came from. Anyone have any ideas???
>>
>> Rey
>>
>>
>> -----Original Message-----
>> From: rbharlan_at_comcast.net [Indoor_Construction] <Indoor_Construction_at_yahoogroups.com>
>> To: Indoor_Construction <Indoor_Construction_at_yahoogroups.com>
>> Sent: Mon, Mar 13, 2017 8:40 am
>> Subject: Re: [Indoor_Construction] Re: 6" props for P-18
>>
>>
>> I'm glad to here some responses to my post. How about you owners of Pitsco and other props weighing some (without shafts or hangers) and posting the results. That will be useful for preliminary evaluation of various props.
>>
>> Ray
>>
>
>
Received on Mon Mar 13 2017 - 21:44:19 CET