[NSRCA-discussion] 8- cells?

J N Hiller jnhiller at earthlink.net
Tue Mar 27 16:56:54 AKDT 2012


Ron I'm thinking I need to plan the KV-RPM-Pitch relationship at 3.3 v/c. Is
this realistic?
Jim

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Ronald Van
Putte
Sent: Tuesday, March 27, 2012 5:50 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] 8- cells?

I think the biggest problem for 8S battery fliers will be vertical
performance, especially late in the flight.

Ron

On Mar 27, 2012, at 7:38 PM, atwooddon at aol.com <mailto:atwooddon at aol.com>
wrote:



Keith, I think there was a recent thread on RCU discussing a 2M model with
8S.

For same relative performance (minus weight impact) you will need to
increase the amps by about 20-25% to get the same watts.  You would either
need a motor with a higher kV or a higher pitched prop or both to get
similar watts.

Don


-----Original Message-----
From: Keith Hoard < khoard at gmail.com <mailto:khoard at gmail.com> >
To: General pattern discussion < nsrca-discussion at lists.nsrca.org
<mailto:nsrca-discussion at lists.nsrca.org> >
Sent: Tue, Mar 27, 2012 2:06 pm
Subject: [NSRCA-discussion] 8- cells?
Is anyone trying 8 cells this year in their 2 meter plane?

Keith Hoard
Collierville, TN
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