From wrightjoey at russellcorp.com Wed May 7 13:39:33 2008 From: wrightjoey at russellcorp.com (Wright, Joey) Date: Wed, 7 May 2008 15:39:33 -0500 Subject: [ARTS] Arts 2 Wiring and Sequence Question Message-ID: Hey Guys, I have an ARTS 2 and I have flow it 5 times now with no problems. This past weekend I had a charge blow while I was arming it on the pad. Let me tell you how it was wired because I think it was a sequence issue but I am not sure. First off I thought someone told me to use 2 switches. 1 to power the arts and the other to make the pryo battery hot. So I wired the 1st switch in line between the + side of the 9v battery and the arts unit, simple enough. I did the same thing with the pyro battery. The + lead is disconnected when the screw switch is not in. I think the 5 previous flights I armed the pyro battery and then turned on the ARTS 2. I think this time I did it in reverse so when I screwed in the pyro switch BOOM. Scared the crap out of me. Now having said that, when we took the ebay out and started trying to examine what had happened some one noticed a chip in one of the CHIPS. Someone thought the chip was an amp. I don't know but I have attached a picture of it. I never noticed it so I don't know if it happened on an earlier flight or what. Any thoughts? My buddy who flies a ton of ARTS rewired it for me on the field. Actually we put another Arts 2 unit in the rocket and flew it with that unit. I plan on connecting the unit up when I get home today and see if there is any info on it. Thanks for any help. If these photos are not hi-res enough please let me know and I can send you another version. Joey Wright Russell Corporation (256) 500-5696 ----------------------------------------- All electronic messages are intended exclusively for the individual or entity to which it is addressed. These communications may contain information that is proprietary, privileged, or confidential or otherwise legally exempt from disclosure. If you are not the intended recipient of these e-mails, you are not authorized to read print retain copy or disseminate these messages in whole or in part or any attachments included. If you have received these messages in error, please notify the sender immediately by e-mail and delete these messages, any attachments, and all copies from your system without reading the content. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080507/d45b7af6/attachment-0001.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: Arts_chipped2.jpg Type: image/jpeg Size: 268520 bytes Desc: Arts_chipped2.jpg Url : http://mx1.blastzone.com/pipermail/arts/attachments/20080507/d45b7af6/attachment-0002.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: Arts_chipped.jpg Type: image/jpeg Size: 351819 bytes Desc: Arts_chipped.jpg Url : http://mx1.blastzone.com/pipermail/arts/attachments/20080507/d45b7af6/attachment-0003.jpg From kreul at charter.net Thu May 8 07:51:59 2008 From: kreul at charter.net (Ed Kreul) Date: Thu, 8 May 2008 09:51:59 -0500 Subject: [ARTS] Arts 2 Wiring and Sequence Question In-Reply-To: References: Message-ID: <000601c8b11b$11cb5230$3561f690$@net> Looks like the tan chip just above got hammered also. From: arts-bounces at lokiresearch.com [mailto:arts-bounces at lokiresearch.com] On Behalf Of Wright, Joey Sent: Wednesday, May 07, 2008 3:40 PM To: arts at lokiresearch.com Subject: [ARTS] Arts 2 Wiring and Sequence Question Hey Guys, I have an ARTS 2 and I have flow it 5 times now with no problems. This past weekend I had a charge blow while I was arming it on the pad. Let me tell you how it was wired because I think it was a sequence issue but I am not sure. First off I thought someone told me to use 2 switches. 1 to power the arts and the other to make the pryo battery hot. So I wired the 1st switch in line between the + side of the 9v battery and the arts unit, simple enough. I did the same thing with the pyro battery. The + lead is disconnected when the screw switch is not in. I think the 5 previous flights I armed the pyro battery and then turned on the ARTS 2. I think this time I did it in reverse so when I screwed in the pyro switch BOOM. Scared the crap out of me. Now having said that, when we took the ebay out and started trying to examine what had happened some one noticed a chip in one of the CHIPS. Someone thought the chip was an amp. I don't know but I have attached a picture of it. I never noticed it so I don't know if it happened on an earlier flight or what. Any thoughts? My buddy who flies a ton of ARTS rewired it for me on the field. Actually we put another Arts 2 unit in the rocket and flew it with that unit. I plan on connecting the unit up when I get home today and see if there is any info on it. Thanks for any help. If these photos are not hi-res enough please let me know and I can send you another version. Joey Wright Russell Corporation (256) 500-5696 _____ All electronic messages are intended exclusively for the individual or entity to which it is addressed. These communications may contain information that is proprietary, privileged, or confidential or otherwise legally exempt from disclosure. If you are not the intended recipient of these e-mails, you are not authorized to read print retain copy or disseminate these messages in whole or in part or any attachments included. If you have received these messages in error, please notify the sender immediately by e-mail and delete these messages, any attachments, and all copies from your system without reading the content. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080508/eddfe6af/attachment.htm From mike.roberts at mikerobe.org Thu May 8 12:46:38 2008 From: mike.roberts at mikerobe.org (Mike Roberts) Date: Thu, 08 May 2008 20:46:38 +0100 Subject: [ARTS] Arts 2 Wiring and Sequence Question In-Reply-To: References: Message-ID: <482366AE.32748.4411D7@mike.roberts.mikerobe.org> The damage to the transistor (the "chip" isnt an amp I suspect it is a transistor or fet ( another kind of transistor)) and tantalum capacitor look more like physical damage than in-use failure damage. The transistor looks like it has been chipped or perhaps crushed. The marks on the capacitor also look lke tooling marks or damage. In-use failure (letting the "smoke" out) usually shows up as charring / blackening of the parts. Looking at the location and shape of the marks I wonder if they might have been caused by a screw or a nut used to hold the board in place by the mounting post? Perhaps a washer? Is it possible that a screwdriver or spanner slipped while doing up the retaining screw? Mike 8-{> > Hey Guys, > > I have an ARTS 2 and I have flow it 5 times now with no problems. This past > weekend I had a charge blow while I was arming it on the pad. > > Let me tell you how it was wired because I think it was a sequence issue but > I am not sure. First off I thought someone told me to use 2 switches. 1 to > power the arts and the other to make the pryo battery hot. So I wired the > 1st switch in line between the + side of the 9v battery and the arts unit, > simple enough. I did the same thing with the pyro battery. The + lead is > disconnected when the screw switch is not in. I think the 5 previous > flights I armed the pyro battery and then turned on the ARTS 2. I think this > time I did it in reverse so when I screwed in the pyro switch BOOM. > Scared the crap out of me. > > > > Now having said that, when we took the ebay out and started trying to examine > what had happened some one noticed a chip in one of the CHIPS. Someone > thought the chip was an amp. I don't know but I have attached a picture of > it. I never noticed it so I don't know if it happened on an earlier flight > or what. > > > > Any thoughts? > > > > My buddy who flies a ton of ARTS rewired it for me on the field. Actually we > put another Arts 2 unit in the rocket and flew it with that unit. I plan on > connecting the unit up when I get home today and see if there is any info on > it. > > > > Thanks for any help. > > > > If these photos are not hi-res enough please let me know and I can send you > another version. > > > > > > > > > > Joey Wright > > Russell Corporation > > (256) 500-5696 > > > > > > > ----------------------------------------- > All electronic messages are intended exclusively for the individual > or entity to which it is addressed. These communications may > contain information that is proprietary, privileged, or > confidential or otherwise legally exempt from disclosure. If you > are not the intended recipient of these e-mails, you are not > authorized to read print retain copy or disseminate these messages > in whole or in part or any attachments included. If you have > received these messages in error, please notify the sender > immediately by e-mail and delete these messages, any attachments, > and all copies from your system without reading the content. From mike.roberts at mikerobe.org Thu May 8 13:37:03 2008 From: mike.roberts at mikerobe.org (Mike Roberts) Date: Thu, 08 May 2008 21:37:03 +0100 Subject: [ARTS] Arts 2 Wiring and Sequence Question In-Reply-To: References: , <482365B0.5765.40307E@mike.roberts.mikerobe.org>, Message-ID: <4823727F.14231.723B68@mike.roberts.mikerobe.org> Hi > Thanks for all the valuable info. I have been very careful with my all my > electronics but that doesn't mean that I didn't do it somehow. I had this > unit for almost a year before I flew it so during that time it could have > gotten bumped or something sat on it. I don't remember anything because I > have tried to be careful. I have flown it 5 times and one of the flights the > main came out at apogee. (my fault). The fiber glassed body tube was zipper > about 2 inches so it was a mildly violent event. But I flew it 3 times after > that. It has been in the ebay ever since I installed it a few month ago. I > realize that I did it somehow but I am not sure now. I see what you are > saying about a screw drive or a washer. The other thing that might have done it. I noticed that it isnt too far from the scre terminals for attaching wires. Not sure from the angle if they are power or igniter connections. They can be a bit tricky to get the screwdriver on to especially if in a restricted ebay space. It might have happened if a screwdriver slipped while doing the field mod to change the battery setup over or while attaching an igniter. > I still have not connected it up to the computer yet to see if I get any > data. I should have had an altimeter on me to see how high I jumped. Ha ha. I feel for you with the charge going off with you right next to it. It is a very scary and unpleasnt thing to happen. While not having had it happen to myself I have been present when it has happened to others. It is truly a "brown trouser" experience ;) > Should I send it to be repaired or are their any test that I can do to make > sure it's ok. For some reason I think it still works properly. The easiest test would be to hook it all up to the computer and use the ARTS software diagnostics to check to see if there is a short in the igniter circuit (arts reports an igniter installed when there is none ? bad boomer?(unlikely as a short before the igniter connection as it would have meant the igniter wouldn't fire)). With some igniters and a battery attached and carefully arming (make sure the igniters cant start a fire or throw sparks anywhere where they might) then use the diagnostics to test fire the igniters. If they don't got when you arm it and do go when you fire the channels you might have a better idea of what is going on. > > Thanks again for all the info. My pleasure :0) Mike 8-{> > -----Original Message----- > From: Mike Roberts [mailto:mike.roberts at mikerobe.org] > Sent: Thursday, May 08, 2008 2:42 PM > To: Wright, Joey > Subject: Re: [ARTS] Arts 2 Wiring and Sequence Question > > The damage to the transistor (the "chip" isnt an amp I suspect it is > a transistor or fet ( another kind of transistor)) and tantalum > capacitor look more like physical damage than in-use failure damage. > The transistor looks like it has been chipped or perhaps crushed. The > marks on the capacitor also look lke tooling marks or damage. In-use > failure (letting the "smoke" out) usually shows up as charring / > blackening of the parts. Looking at the location and shape of the > marks I wonder if they might have been caused by a screw or a nut > used to hold the board in place by the mounting post? Perhaps a > washer? Is it possible that a screwdriver or spanner slipped while > doing up the retaining screw? > > Mike 8-{> > > > > > I have an ARTS 2 and I have flow it 5 times now with no problems. This > past > > weekend I had a charge blow while I was arming it on the pad. > > > > Let me tell you how it was wired because I think it was a sequence issue > but > > I am not sure. First off I thought someone told me to use 2 switches. 1 > to > > power the arts and the other to make the pryo battery hot. So I wired the > > 1st switch in line between the + side of the 9v battery and the arts unit, > > simple enough. I did the same thing with the pyro battery. The + lead is > > disconnected when the screw switch is not in. I think the 5 previous > > flights I armed the pyro battery and then turned on the ARTS 2. I think > this > > time I did it in reverse so when I screwed in the pyro switch BOOM. > > Scared the crap out of me. > > > > > > > > Now having said that, when we took the ebay out and started trying to > examine > > what had happened some one noticed a chip in one of the CHIPS. Someone > > thought the chip was an amp. I don't know but I have attached a picture of > > it. I never noticed it so I don't know if it happened on an earlier flight > > or what. > > > > > > > > Any thoughts? > > > > > > > > My buddy who flies a ton of ARTS rewired it for me on the field. Actually > we > > put another Arts 2 unit in the rocket and flew it with that unit. I plan > on > > connecting the unit up when I get home today and see if there is any info > on > > it. > > > > > > > > Thanks for any help. > > > > > > > > If these photos are not hi-res enough please let me know and I can send you > > another version. > > > > > > > > > > > > > > > > > > > > Joey Wright > > > > Russell Corporation > > > > (256) 500-5696 > > > > > > > > > > > > > > ----------------------------------------- > > All electronic messages are intended exclusively for the individual > > or entity to which it is addressed. These communications may > > contain information that is proprietary, privileged, or > > confidential or otherwise legally exempt from disclosure. If you > > are not the intended recipient of these e-mails, you are not > > authorized to read print retain copy or disseminate these messages > > in whole or in part or any attachments included. If you have > > received these messages in error, please notify the sender > > immediately by e-mail and delete these messages, any attachments, > > and all copies from your system without reading the content. > > > > ----------------------------------------- > All electronic messages are intended exclusively for the individual > or entity to which it is addressed. These communications may > contain information that is proprietary, privileged, or > confidential or otherwise legally exempt from disclosure. If you > are not the intended recipient of these e-mails, you are not > authorized to read print retain copy or disseminate these messages > in whole or in part or any attachments included. If you have > received these messages in error, please notify the sender > immediately by e-mail and delete these messages, any attachments, > and all copies from your system without reading the content. > > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.23.10/1421 - Release Date: 07/05/2008 17:23 > From hsullman at comcast.net Mon May 12 17:45:22 2008 From: hsullman at comcast.net (Howard Ullman) Date: Mon, 12 May 2008 20:45:22 -0400 Subject: [ARTS] ARTS GPS Problems Message-ID: <002601c8b492$a0eb9e00$6601a8c0@Howard2007> Sorry if this is a duplicate. I have an ARTS2 w/GPS. I haven't flown either yet. When I try and get the GPS to work, my machine says it can't find COM1 or COM4. I have tried both serial and USB. I am also getting a floating point error with the GPS software too. I am running Windows XP Home Edition on a Dell XPS 2007 machine. Thank you for any help or tips..Howard -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080512/45fa4e0b/attachment.htm From artupton at yahoo.com Mon May 12 18:20:48 2008 From: artupton at yahoo.com (art upton) Date: Mon, 12 May 2008 18:20:48 -0700 (PDT) Subject: [ARTS] ARTS GPS Problems In-Reply-To: <002601c8b492$a0eb9e00$6601a8c0@Howard2007> Message-ID: <256339.10936.qm@web63412.mail.re1.yahoo.com> Hi Howard, Do you have a real serial port on the PC? what port is it assigned to in XP device manager? Art "no relation to ARTS" > Sorry if this is a duplicate. > > I have an ARTS2 w/GPS. I haven't flown either yet. > When I try and get the > GPS to work, my machine says it can't find COM1 or > COM4. > > I have tried both serial and USB. I am also getting > a floating point error > with the GPS software too. I am running Windows XP > Home Edition on a Dell > XPS 2007 machine. > > Thank you for any help or tips..Howard > > > > > _______________________________________________ > ARTS mailing list > ARTS at lokiresearch.com > http://mx1.blastzone.com/mailman/listinfo/arts ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ From jafrado at gmail.com Mon May 12 19:54:30 2008 From: jafrado at gmail.com (James Dougherty) Date: Mon, 12 May 2008 19:54:30 -0700 Subject: [ARTS] ARTS GPS Problems In-Reply-To: <002601c8b492$a0eb9e00$6601a8c0@Howard2007> References: <002601c8b492$a0eb9e00$6601a8c0@Howard2007> Message-ID: <1ee201c8b4a4$aaf33180$00d99480$@com> Hi Howard, Had this problem before as well if you're using USB->Serial adapter, then you need To go into System->Device Manager->USB Serial and double click to get properties And then select COM port assignment. Select one which isn't being used and you're All set. Hope this helps. -James From: arts-bounces at lokiresearch.com [mailto:arts-bounces at lokiresearch.com] On Behalf Of Howard Ullman Sent: Monday, May 12, 2008 5:45 PM To: arts at lokiresearch.com Subject: [ARTS] ARTS GPS Problems Sorry if this is a duplicate. I have an ARTS2 w/GPS. I haven't flown either yet. When I try and get the GPS to work, my machine says it can't find COM1 or COM4. I have tried both serial and USB. I am also getting a floating point error with the GPS software too. I am running Windows XP Home Edition on a Dell XPS 2007 machine. Thank you for any help or tips..Howard -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080512/b76fb4c5/attachment.htm From mikeharris at privatedata.com Tue May 13 05:34:03 2008 From: mikeharris at privatedata.com (Mike Harris) Date: Tue, 13 May 2008 08:34:03 -0400 Subject: [ARTS] ARTS GPS Problems In-Reply-To: <1ee201c8b4a4$aaf33180$00d99480$@com> References: <002601c8b492$a0eb9e00$6601a8c0@Howard2007> <1ee201c8b4a4$aaf33180$00d99480$@com> Message-ID: <6.2.3.4.2.20080513083052.08bcf310@mail.privatedata.com> Com ports always seem to be a fight, and dongles obfuscate things more. I was just playing with my new/used eTrex Vista (for use with the BeeLine APRS GPS) and while figuring to fight the com port wars, saw while it came up with COM1 by default, it had auto-detect. Simple enough, it iterates through all the com ports, and for those attached, has a short chat to ensure it's what it's looking for (in this case Garmin GPS) and then leaves those settings loaded. That would be handy to help with the ARTS com port wrangling. At 10:54 PM 5/12/2008, James Dougherty wrote: >Hi Howard, > >Had this problem before as well if you?re using >USB->Serial adapter, then you need >To go into System->Device Manager->USB Serial >and double click to get properties >And then select COM port assignment. Select one >which isn?t being used and you?re >All set. > >Hope this helps. > >-James > >From: arts-bounces at lokiresearch.com >[mailto:arts-bounces at lokiresearch.com] On Behalf Of Howard Ullman >Sent: Monday, May 12, 2008 5:45 PM >To: arts at lokiresearch.com >Subject: [ARTS] ARTS GPS Problems > >Sorry if this is a duplicate. >I have an ARTS2 w/GPS. I haven?t flown either >yet. When I try and get the GPS to work, my >machine says it can?t find COM1 or COM4. >I have tried both serial and USB. I am also >getting a floating point error with the GPS >software too. I am running Windows XP Home Edition on a Dell XPS 2007 machine. >Thank you for any help or tips .Howard > >_______________________________________________ >ARTS mailing list >ARTS at lokiresearch.com >http://mx1.blastzone.com/mailman/listinfo/arts --- 'If it ain't broke, take it apart anyway. If you can't take it apart, break it so that you can fix it.' -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080513/1211725b/attachment.htm From ghuber at landacorp.com Tue May 13 09:38:47 2008 From: ghuber at landacorp.com (Geoff Huber) Date: Tue, 13 May 2008 09:38:47 -0700 Subject: [ARTS] ARTS GPS Problems In-Reply-To: <6.2.3.4.2.20080513083052.08bcf310@mail.privatedata.com> References: <002601c8b492$a0eb9e00$6601a8c0@Howard2007><1ee201c8b4a4$aaf33180$00d99480$@com> <6.2.3.4.2.20080513083052.08bcf310@mail.privatedata.com> Message-ID: Also, it helps to always plug your USB dongle into the same port. I find that I get a different COM port on my dongle depending on what port I plug into. Thus, once it is working, I need to plug into the same port or else reconfig the software. Using the same port is easier. G ________________________________ From: arts-bounces at lokiresearch.com [mailto:arts-bounces at lokiresearch.com] On Behalf Of Mike Harris Sent: Tuesday, May 13, 2008 5:34 AM To: James Dougherty; 'Howard Ullman'; arts at lokiresearch.com Subject: Re: [ARTS] ARTS GPS Problems Com ports always seem to be a fight, and dongles obfuscate things more. I was just playing with my new/used eTrex Vista (for use with the BeeLine APRS GPS) and while figuring to fight the com port wars, saw while it came up with COM1 by default, it had auto-detect. Simple enough, it iterates through all the com ports, and for those attached, has a short chat to ensure it's what it's looking for (in this case Garmin GPS) and then leaves those settings loaded. That would be handy to help with the ARTS com port wrangling. At 10:54 PM 5/12/2008, James Dougherty wrote: Hi Howard, Had this problem before as well if you're using USB->Serial adapter, then you need To go into System->Device Manager->USB Serial and double click to get properties And then select COM port assignment. Select one which isn't being used and you're All set. Hope this helps. -James From: arts-bounces at lokiresearch.com [ mailto:arts-bounces at lokiresearch.com ] On Behalf Of Howard Ullman Sent: Monday, May 12, 2008 5:45 PM To: arts at lokiresearch.com Subject: [ARTS] ARTS GPS Problems Sorry if this is a duplicate. I have an ARTS2 w/GPS. I haven't flown either yet. When I try and get the GPS to work, my machine says it can't find COM1 or COM4. I have tried both serial and USB. I am also getting a floating point error with the GPS software too. I am running Windows XP Home Edition on a Dell XPS 2007 machine. Thank you for any help or tips....Howard _______________________________________________ ARTS mailing list ARTS at lokiresearch.com http://mx1.blastzone.com/mailman/listinfo/arts --- 'If it ain't broke, take it apart anyway. If you can't take it apart, break it so that you can fix it.' -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080513/0ad5004e/attachment-0001.htm From ehall at ozarkaerospace.com Tue May 13 15:53:44 2008 From: ehall at ozarkaerospace.com (Erik Hall) Date: Tue, 13 May 2008 18:53:44 -0400 Subject: [ARTS] Arts 2 Wiring and Sequence Question In-Reply-To: References: Message-ID: <003601c8b54c$327c5490$6501a8c0@Ozark1> Joey, Yikes!!! That chipped chip is the voltage regulator (ie the power supply) that powers the board. If that is not running correctly then anything can go wrong. The unit should not fire anything as you describe. There isn't a "proper" power up sequence, if you use two switches you can connect them in either order. I think your unit is defective. Send it back to me and I'll check into repairing it. Thanks, Erik _____ From: arts-bounces at lokiresearch.com [mailto:arts-bounces at lokiresearch.com] On Behalf Of Wright, Joey Sent: Wednesday, May 07, 2008 4:40 PM To: arts at lokiresearch.com Subject: [ARTS] Arts 2 Wiring and Sequence Question Hey Guys, I have an ARTS 2 and I have flow it 5 times now with no problems. This past weekend I had a charge blow while I was arming it on the pad. Let me tell you how it was wired because I think it was a sequence issue but I am not sure. First off I thought someone told me to use 2 switches. 1 to power the arts and the other to make the pryo battery hot. So I wired the 1st switch in line between the + side of the 9v battery and the arts unit, simple enough. I did the same thing with the pyro battery. The + lead is disconnected when the screw switch is not in. I think the 5 previous flights I armed the pyro battery and then turned on the ARTS 2. I think this time I did it in reverse so when I screwed in the pyro switch BOOM. Scared the crap out of me. Now having said that, when we took the ebay out and started trying to examine what had happened some one noticed a chip in one of the CHIPS. Someone thought the chip was an amp. I don't know but I have attached a picture of it. I never noticed it so I don't know if it happened on an earlier flight or what. Any thoughts? My buddy who flies a ton of ARTS rewired it for me on the field. Actually we put another Arts 2 unit in the rocket and flew it with that unit. I plan on connecting the unit up when I get home today and see if there is any info on it. Thanks for any help. If these photos are not hi-res enough please let me know and I can send you another version. Joey Wright Russell Corporation (256) 500-5696 _____ All electronic messages are intended exclusively for the individual or entity to which it is addressed. These communications may contain information that is proprietary, privileged, or confidential or otherwise legally exempt from disclosure. If you are not the intended recipient of these e-mails, you are not authorized to read print retain copy or disseminate these messages in whole or in part or any attachments included. If you have received these messages in error, please notify the sender immediately by e-mail and delete these messages, any attachments, and all copies from your system without reading the content. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mx1.blastzone.com/pipermail/arts/attachments/20080513/550fba97/attachment.htm From vern_knowles at att.net Sat May 24 13:50:40 2008 From: vern_knowles at att.net (Vern Knowles) Date: Sat, 24 May 2008 14:50:40 -0600 Subject: [ARTS] ARTS1 firing sequence Message-ID: <002b01c8bddf$d44c3560$0400a8c0@MainPC> Does the ARTS1 fire the main chute igniter (as a fail safe procedure) if it tries to fire the apogee igniter but detects it is open circuit? I ask because I have a situation where I want to wire another altimeter to the same apogee ejection charge as the ARTS. (Separate charges for each altimeter is not an option.) I don't want the ARTS to resort to putting out the main chute at apogee if the other altimeter fires the apogee charge before the ARTS does (and therefore open circuits the igniter connected to the ARTS.) I don't see anything in the ARTS1 user manual that mentions this kind of behavior but figured it would be best to ask, just in case. Also, what about the ARTS2? Thanks, Vern Knowles www.vernk.com From jeff at lokiresearch.com Sat May 24 22:36:22 2008 From: jeff at lokiresearch.com (Jeff Taylor) Date: Sun, 25 May 2008 01:36:22 -0400 Subject: [ARTS] ARTS1 firing sequence In-Reply-To: <002b01c8bddf$d44c3560$0400a8c0@MainPC> References: <002b01c8bddf$d44c3560$0400a8c0@MainPC> Message-ID: <4838FAD6.7070003@lokiresearch.com> Vern Knowles wrote: > Does the ARTS1 fire the main chute igniter (as a fail safe procedure) if it tries to fire the > apogee igniter but detects it is open circuit? > No. > I ask because I have a situation where I want to wire another altimeter to the same apogee ejection > charge as the ARTS. (Separate charges for each altimeter is not an option.) I don't want the ARTS > to resort to putting out the main chute at apogee if the other altimeter fires the apogee charge > before the ARTS does (and therefore open circuits the igniter connected to the ARTS.) > > I don't see anything in the ARTS1 user manual that mentions this kind of behavior but figured it > would be best to ask, just in case. > > Also, what about the ARTS2? > No. Happy flying. -JT From mikeharris at privatedata.com Tue May 27 07:47:58 2008 From: mikeharris at privatedata.com (Mike Harris) Date: Tue, 27 May 2008 10:47:58 -0400 Subject: [ARTS] Hybrid Motor Characterization In-Reply-To: <002b01c8bddf$d44c3560$0400a8c0@MainPC> References: <002b01c8bddf$d44c3560$0400a8c0@MainPC> Message-ID: <6.2.3.4.2.20080527103934.0873d5b0@mail.privatedata.com> ARTS Hybrid Flyers, Does the ARTS accurately and consistently characterize your hybrid motor flights? I'm guessing we'd need to run at max sampling (200hz) to minimize aliasing. But are flights accurately characterized? Are readings or behaviour ever squirrely? Either way - which motor? I know some are more prone to higher frequency oscillations (large HT?) that had aliasing issues with other altimeters a few years back. ARTS2 if it makes a difference? I ask for a couple reasons. 1) reliability as primary altimeter for any (including) EX hybrid motor flights 2) consistent characterization of hybrid motor flights Thanks! Mike