What sort of extinguisher can be relied apon to put out a LiPo on Fire? On Fri, Sep 29, 2017 at 8:35 PM, Noel Roediger <[email protected]> wrote:
> Interesting. > > But the report doesn't really tell us anything we don't know about LiPo's. > > SR 018, 019 and 020 are as useless as TOAB without requiring an > extinguisher to be carried - and there is none. > > I understand some manufacturers of SLS's already incorporate fire warning > systems but without extinguisher backup. > > Not with-standing, it must be realized that any type of battery can > explode. > > I look forward to the AAIB report on the certification process followed by > EASA. > > Noel. > > -----Original Message----- > From: Aus-soaring [mailto:[email protected]] On > Behalf Of Justin Couch > Sent: Friday, September 29, 2017 5:33 PM > To: [email protected] > Subject: Re: [Aus-soaring] FES fire in the UK > > Here's the actual AAIB report: > > https://assets.publishing.service.gov.uk/media/ > 59c8f175e5274a49c07f4704/AAIB_S3-2017_G-GSGS.pdf > > > On 29/09/2017 7:02 AM, Future Aviation Pty. Ltd. wrote: > > Good morning all > > > > This was sent to me over night by a German friend of mine. > > > > As you can see, no mention was made of the type of battery used here. > > From my visits to the AERO trade fair I know that some manufacturers > use LiPo Batteries. > > They have the best power to weight ratio but they are known to be > extremely dangerous. > > I will attempt to find out if this type of battery was installed in this > glider. > > > > Kind regards to all > > > > Bernard > > > >> From UK, newspaper report: > >> > >> > >> > >> > >> The Air Accidents Investigation Branch has made a safety recommendation > after a sailplane burst into flames shortly after landing in Parham > Airfield. On August 10, 2017, the glider sailplane set off from the > airfield between Storrington and Pulborough at 10.21am for a flight lasting > approximately two hours. The glider was flown normally to a smooth > touchdown, according to the AAIB, until the pilot heard an ‘unexpected > noise’. The AAIB report said: “As the glider slowed during the ground run, > the pilot smelled burning and the cockpit filled with smoke that was moving > forwards from behind the pilot’s head. “He vacated the cockpit normally, > without injury, and observed that the Front Electric Sustainer (FES) > battery compartment cover was missing and that smoke, followed shortly by > flames, was coming from the battery compartment. “The airfield fire truck > arrived promptly and an initial attempt was made to extinguish the fire > using a CO2 gaseous extinguisher, but this proved unsuccessful. “Aqueous > film-forming foam (AFFF) was then sprayed into the FES battery compartment > and the fire was extinguished.” > >> > >> > >> The pilot was the only person on board the glider, according to the > AAIB. > >> > >> He did not report observing any warning messages or illuminated LEDs, > when asked by the AAIB, although his attention was drawn outside the > cockpit during landing. > >> > >> The AAIB report found existing FES battery installations ‘do not > provide sufficient warning’ to a pilot of a fire. > >> > >> As a result, the AAIB made a safety recommendation that ‘all powered > sailplanes fitted with an FES system, must be equipped with a warning > system to alert the pilot to the presence of a fire in the FES battery > compartment’. > >> > >> The AAIB investigation confirmed the ‘origin of the fire’ was the > forward FES battery. > >> > >> The report added: “Its battery box was ruptured along the rear left > corner and the battery assembly was heavily fire damaged. > >> > >> “The rear FES battery box suffered from external fire damage although > the internal components were only slightly damaged and the cells remained > charged. > >> > >> “The FES battery compartment was heavily fire damaged. > >> > >> > >> > >> see also > >> > >> https://www.gov.uk/aaib-reports/aaib-special-bulletin-s3-2017-on-hph- > >> glasflugel-304-es-g-gsgs > >> <https://www.gov.uk/aaib-reports/aaib-special-bulletin-s3-2017-on-hph > >> -glasflugel-304-es-g-gsgs> > >> http://www.front-electric-sustainer.com/news.php > >> <http://www.front-electric-sustainer.com/news.php> > >> http://publicapps.caa.co.uk/docs/33/20170906EASAAD20170167E.pdf > >> <http://publicapps.caa.co.uk/docs/33/20170906EASAAD20170167E.pdf> > > > -- > Justin Couch http://www.vlc.com.au/ > Java 3D Graphics Information http://www.j3d.org/ > LinkedIn http://au.linkedin.com/in/justincouch/ > G+ WetMorgoth > ------------------------------------------------------------------- > "Look through the lens, and the light breaks down into many lights. > Turn it or move it, and a new set of arrangements appears... is it > a single light or many lights, lights that one must know how to > distinguish, recognise and appreciate? Is it one light with many > frames or one frame for many lights?" -Subcomandante Marcos > ------------------------------------------------------------------- > _______________________________________________ > Aus-soaring mailing list > [email protected] > http://lists.base64.com.au/listinfo/aus-soaring > > _______________________________________________ > Aus-soaring mailing list > [email protected] > http://lists.base64.com.au/listinfo/aus-soaring >
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