Which sustainer system would you chose for your sailplane?

Dne sobota, 29. september 2012 18:16:36 UTC+2 je oseba Greg Arnold napisala:
On 9/29/2012 8:42 AM, slbair wrote:





Motor cooling is handled via a small electric fan forward of the rudder pedals, an air vent in the nose cone that allows outside air to help cool the motor (and the cockpit), and 3 electric fans on the shelf behind the pilot's seat to cool the controller. When the batteries get low, warnings go off on the FCU, and I would then throttle back and turn off the FES. There is no automatic shutdown of the FES which allows the pilot to keep the FES running if there is an emergency situation. Thx - Renny







On our latest instalations, we manage to arrange cooling also without electric fan infront of pedals. Motor itself has bigger centrifugal ventilator at back side!







Regards, Luka



Luka,



It sounds like a number of incremental changes have been made to the FES system that have not yet been posted to your web site. Could you write a post detailing these changes and perhaps also let us know what's coming in the near future? Thanks,



SLB





Luka:



Since the prop now automatically stops in same position each time, does

this mean that the cross section shape of the fuselage at the nose no

longer has to be circular, but instead could be oval like on many

gliders? This would require the spinner to be oval -- does an oval

spinner shape present problems?



I second the idea of better information in one place on the web page.

Right now, anyone wanting accurate information must be a sleuth who

reads multiple webpages, who reads a PDF brochure, and who peruses RAS

postings by Luka and others. Sherlock Holmes, we need you!


Dear Greg,

Your thinking is correct! For Silent we are using now already slightly oval - eliptic shape of spinner at fuselage front cut. Small amount of ovality does not present any problem, but need to explore possibilities of even higher ovality...
We will try to publish latest data and achievements on our website more regulary. Now pilots can sigh in for our newsletter, where those informations will be published when it will be apropriate.
Sign in for newsletter:
http://www.front-electric-sustainer.com/newsletter.php

Kind regards,

Luka Znidarsic, FES development

I am putting together a list of all LAK owners in the USA and, when
finished, will email all owners with information of the FES installation,
expected cost, location, and expected installation time.

I have the list together (19 US owners!) but, unfortunately, the SSA website
will only allow me to get contact information for 5 members per day.
Therefore, it will take me another 3 or 4 days to get the message out to
prospective users. Hopefully, I can get the requisite 4 people to get the
group rate that Luka offered and I posted originally. I've already heard
from two prospects and, of course, myself.

Keep the discussion going!


"Renny" wrote in message
...
On Friday, September 28, 2012 6:00:43 PM UTC-6, (unknown) wrote:
On Monday, September 24, 2012 4:23:59 PM UTC-7, Renny wrote:

On Monday, September 24, 2012 4:53:12 PM UTC-6, Greg Arnold wrote: On
9/24/2012 3:39 PM, Renny wrote: Here's the URL for a PDF
brochure that was handed out at the 2012 Reno Convention on the FES.
Hopefully,



Renny, so you're running about 170 Amps or so. Your motor and esc need
some cooling, so how is that accomplished? And then you must have a way
to automatically override throttle if lipos approach 70 to 80% drained?

Motor cooling is handled via a small electric fan forward of the rudder
pedals, an air vent in the nose cone that allows outside air to help cool
the motor (and the cockpit), and 3 electric fans on the shelf behind the
pilot's seat to cool the controller. When the batteries get low, warnings go
off on the FCU, and I would then throttle back and turn off the FES. There
is no automatic shutdown of the FES which allows the pilot to keep the FES
running if there is an emergency situation. Thx - Renny