[NSRCA-discussion] Alabama Bound

Tue Nov 24 18:54:43 AKST 2009

Scott, What is the reason behind a 13 inch prop limit for electric? There
isn't any limit on prop sizes for IC engines is there? A flyer with an IC
engine searches for the best prop size to the particular plane and engine
combo, it seems that electric flyers should have the same flexibility.
Dave Burton

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
scott at rcfoamy.com
Sent: Tuesday, November 24, 2009 10:42 PM
To: Nsrca
Subject: Re: [NSRCA-discussion] Alabama Bound

Well I have talked to Dave direct but here is more info..most are running a
5 or 6s pack and a 13x8 or 13x9 prop.. 
They are doing a static on ground test with a inline watt meter...

What is being proposed is a max of 6s pack and max 13 inch prop...

Well all have a good turkey day and check out www.classic-patternrc.com
forum for those classic birds..

Scott
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Ron Van Putte <vanputte at cox.net>
Date: Tue, 24 Nov 2009 21:34:54 
To: General pattern discussion<nsrca-discussion at lists.nsrca.org>
Subject: Re: [NSRCA-discussion] Alabama Bound

Well, let's see:  multiply volts times amps.... <VBG>

Actually, that's a really good question.  "Everyone" knows you can  
overwatt  a motor, so the motors' ratings can't be used.  But, you  
can't use more than AMA's limit of 42 volts, so you can put a DC  
clamp meter on a battery lead, to make sure a hot battery can't push  
more than about 35 amps into the ESC.

Most airplanes of that era were 7 to 7 1/2 pounds, so a limit of 1400  
watts would mean the airplanes would have 187 to 200 watts per  
pound.  That's a pretty reasonable wattage for good performance of  
those kinds of airplanes doing the maneuvers of that era.

Ron VP

On Nov 24, 2009, at 9:19 PM, Dave wrote:

> How are the watts measured?  Just curious.
>
> Regards,
>
> Dave
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
> scott at rcfoamy.com
> Sent: Tuesday, November 24, 2009 9:00 PM
> To: Nsrca
> Subject: Re: [NSRCA-discussion] Alabama Bound
>
> Ron,
>
> Max 2 stroke .61 and .91 - 4 stroke and electric now with max of 1400
> watts...
> No pipes or retracts and up to 1975 design..
>
> Scott A.
>
> Check out www.classic-patternrc.com
>
>
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: Ron Van Putte <vanputte at cox.net>
> Date: Tue, 24 Nov 2009 19:39:52
> To: General pattern discussion<nsrca-discussion at lists.nsrca.org>
> Subject: Re: [NSRCA-discussion] Alabama Bound
>
> Yeah, they were and I couldn't use a Super Tigre G60 BH with Perry
> Directional Porting either.
>
> I suspect that there's still a ban on 0.61 and up 2-stroke engines,
> but 0.91 4-stroke engines are allowed?
>
> Ron
>
> On Nov 24, 2009, at 7:29 PM, Phil Spelt wrote:
>
>> Ron, I don't think we ever banned schneurle engines -- that's all
>> you can get, now, I believe...they certainly are legal now.
>>
>> At 05:41 PM 11/24/2009, you wrote:
>>> It's a long story, but, in the beginning, the SPA banned schneurle
>>> ported 0.60 engines, tuned pipes and retracts, but after a while  
>>> they
>>> decided decided to allow 0.91 4-stroke engines and I decided I'd had
>>> enough.  I don't know what the rules are now, since I haven't  
>>> kept up
>>> with them.
>>>
>>> Ron
>>>
>>> On Nov 24, 2009, at 4:24 PM, Stuart Chale wrote:
>>>
>>>> Ron how could you have dropped out of the senior pattern
>>>> association?
>>>> Is there an age limit?
>>>>
>>>> Stuart C.
>>>>
>>>> Ron Van Putte wrote:
>>>>> The Aurora already is eligible in the Ballistic Pattern
>>>>> Association.
>>>>>
>>>>> It probably won't be eligible in the Senior Pattern Association,
>>>>> because the Aurora has retracts and I know that retracts were not
>>>>> allowed in SPA when I dropped out of it.
>>>>>
>>>>> Ron VP.
>>>>>
>>>>>
>>>>> On Nov 24, 2009, at 1:21 PM, Woodward, Jim (US SSA) wrote:
>>>>>
>>>>>> OK  when will the Aurora become an active plane?  Or, I guess I
>>>>>> could get something else. Jim
>>>>>>
>>>>>>
>>>>>>
>>>>>> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-
>>>>>> discussion-bounces at lists.nsrca.org] On Behalf Of Phil Spelt
>>>>>> Sent: Tuesday, November 24, 2009 2:18 PM
>>>>>> To: General pattern discussion
>>>>>> Subject: Re: [NSRCA-discussion] Alabama Bound
>>>>>>
>>>>>>
>>>>>>
>>>>>> Jim, you are moving into the HEART of Senior Pattern territory --
>>>>>> check us out...
>>>>>>
>>>>>> At 01:21 PM 11/24/2009, Jim Woodward wrote:
>>>>>>
>>>>>> Hi Guys,
>>>>>>
>>>>>>
>>>>>>
>>>>>> I have accepted a new position within BAE Systems and will move
>>>>>> up to the Albertville, AL area in the next few weeks.  I'm
>>>>>> looking forward to flying with the guys in the Huntsville and
>>>>>> Atlanta areas!!
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Jim
>>>>>>
>>>>>> _______________________________________________
>>>>>> NSRCA-discussion mailing list
>>>>>> NSRCA-discussion at lists.nsrca.org
>>>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>>>>
>>>>>> --> There are only two types of aircraft -- fighters and targets.
>>>>>>
>>>>>> Phil Spelt, Past President, Knox County Radio Control Society,
>>>>>> Inc.
>>>>>>        URL: http://www.kcrctn.com
>>>>>> AMA--1294,  Scientific Leader Member, SPA--177
>>>>>>       My URL: http://mywebpages.comcast.net/~chuenkan/
>>>>>>       (865) 435-1476 v  (865) 604-0541 c
>>>>>>
>>>>>> _______________________________________________
>>>>>> NSRCA-discussion mailing list
>>>>>> NSRCA-discussion at lists.nsrca.org
>>>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>>>
>>>>> _______________________________________________
>>>>> NSRCA-discussion mailing list
>>>>> NSRCA-discussion at lists.nsrca.org
>>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>>>>
>>>>
>>>> _______________________________________________
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>>>
>>> _______________________________________________
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>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>> --> There are only two types of aircraft -- fighters and targets.
>>
>> Phil Spelt, Past President, Knox County Radio Control Society, Inc.
>>        URL: http://www.kcrctn.com
>> AMA--1294,  Scientific Leader Member, SPA--177
>>       My URL: http://mywebpages.comcast.net/~chuenkan/
>>       (865) 435-1476 v  (865) 604-0541 c
>>
>> _______________________________________________
>> NSRCA-discussion mailing list
>> NSRCA-discussion at lists.nsrca.org
>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
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