REFLECTOR: Wire (typo?):pissing contest

[Laurence Coen]

Dave,

Rene' mentioned he was using a RCG battery as in lead acid.  Li-Ion 
batteries have a much better power to weight ratio than lead acid batteries. 
However, a 900 Amp Hr Li-Ion battery by your spec would still weigh 225 lbs. 
What's your point?  Concord probably rejected the deal because they thought 
they might have trouble selling a $1,000 + aircraft battery.  The price is 
just a wild guess but I do know that the tiny (Li-Ion) battery in my cell 
phone sells for $45.

Larry Coen

----- Original Message ----- 
From: "Dave Dent" <davedent at comcast.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Friday, February 11, 2005 11:42 AM
Subject: Re: REFLECTOR: Wire (typo?)


> As far as batteries go I had a company once (Spectrapower) that produced 
> batteries that put out 100 Ahr at 16 volts that weighed in at 25lbs.  I 
> showed them to Concord Battery and they said they were not interested. 
> They were Li-Ion type.
> I then produce a battery for the solar powered NASA plane that would put 
> out 350 whkg.  They turned this down because they had put to much money 
> into the Hydrogen fuel cells.  Big mistake, the plane crashed because of 
> over-weight and center of C/G for a span loaded aircraft.
> This technology still exist but not being produced in the U.S.  I built up 
> some as standby batteries for my EFIS that are 12V at 5Ah and just under 
> one pound.  These are very special and will not be built again because we 
> sold the whole thing to a company outside the states.  That happens a lot 
> in this country.  A lot of great technology has been lost because of 
> bureaucracy and greed by those that are already making good money off old 
> technology.
> As Burt Rutan once told me, "we can do it but politics won't let us." At 
> that time we were talking about get our UAV's to 100kft and flying for 
> days on end.
> Dave
> ----- Original Message ----- 
> From: "Laurence Coen" <lwcoen at hotmail.com>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Friday, February 11, 2005 8:19 AM
> Subject: Re: REFLECTOR: Wire (typo?)
>
>
>> Rene',
>>
>> A 900 Amp Hr battery would be huge and weigh about 580 lbs.  9 Amp Hr 
>> would be small.
>>
>> Larry Coen
>>
>> ----- Original Message ----- 
>> From: "Rene Dugas" <dugasd at bellsouth.net>
>> To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
>> Sent: Thursday, February 10, 2005 6:11 PM
>> Subject: RE: REFLECTOR: Wire
>>
>>
>>>I used #2 welding cable both ways and #4 to panel recommended by Bob
>>> Nuckols in the Aeroelectric Connection.  Worked well so far for three
>>> years.  Very flexible and easy to route.  260 hp Lyc with Lamar Starter
>>> and 900 AMphr GRecom battery very small in nose.
>>> Rene'
>>>
>>> -----Original Message-----
>>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>>> Behalf Of velocityxlfg
>>> Sent: Tuesday, February 08, 2005 8:07 AM
>>> To: Velocity Aircraft Owners and Builders list
>>> Subject: REFLECTOR: Wire
>>>
>>> What gauge wire would you run from the battery in the front of the plane
>>> to
>>> the starter in the back? I was thinking of  2 gauge wire any thoughts ?
>>> ----- Original Message ----- 
>>> From: "Andy Millin" <amillin at sbcglobal.net>
>>> To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
>>> Sent: Tuesday, February 08, 2005 7:17 AM
>>> Subject: REFLECTOR: Accident
>>>
>>>
>>>> I don't know this owner or the aircraft.  Not a lot of information in
>>> the
>>>> report.  Sounds like there weren't any injuries but significant damage
>>> to
>>>> the aircraft.
>>>>
>>>> http://www.faa.gov/avr/aai/M_0124_N.txt
>>>>
>>>> http://162.58.35.241/acdatabase/NNumSQL.asp?NNumbertxt=121hs
>>>>
>>>> _______________________________________________
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>>>
>>>
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>
>
>
> _______________________________________________
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