[RCSE] tom hoopes' posting re receivers
Ain't it a pleasure to get some commentary based on empirical and valid tests?! Thanks, Tom. __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] Airfoils.
I have tried numerous URL addresses for the Selig Airfoil site in the past few days, all with no success. Does anyone have a URL that they know works? thank you. Klaus K Weiss Sydney Australia http://web.one.net.au/~kkw RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Selig
Brian wrote: Hi, Anyone know what the current address for Mr. Seligs Airfoil data site. These links don't work for me. http://opus.aae.uiuc.edu/~selig/ http://amber.aae.uiuc.edu/~m-selig This works for me, just tried it: http://amber.aae.uiuc.edu/~m-selig/ -- Andrew E. Mileski RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] Winch Line ?
Speaking of winches, any one know of some good sources for braided winch line, other than Memphis Net Twine? The last 12 rolls #24 we got last fall were really bad. TIA Bill Grenoble-- BAR/CSSPA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] New Receiver Standard
Thanks to Tom Hoopes for relating his test results. Empirical data is the best and we owe Tom our gratitude for his efforts. The marketing trends of today don't include the hard core factual data. And, I'm not expecting to see this change. Thus, it's difficult to separate truth from lies (oops, marketing literature). Thus, I propose a NEW STANDARD to help us separate the good from the bad. The "Hoopes Seal of Approval". Heck, this is already being done by the more savy manufacturers so it shouldn't be too tough to implement. Once Tom has approved a receiver, the manufacturer could include "Hoopes Approved" in their literature and/or mark it directly on the case. Tom's approval is good enough for me and I'd guess many others. Just look at all those he's helped with the Stylus Tx. He's known and trusted. That's valuable to consumers. Bill Swingle [EMAIL PROTECTED] Janesville, CA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
RE: [RCSE] New Receiver Standard
I agree with Bill. I would not be able to fly many of the planes I do without Tom's amazing skills on programming the Stylus Tx. His seal of approval on Rx's would be meaningful to memore power to Tom, helps us consumers. Barry Baskin. Walnut Creek CA. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Wipers?
Daniel Armstrong wrote: I am starting to design a new 3.6 metre model and want to use wipers on both ailerons and flaps, could some one with experience of wipers tell me how they are contructed and any special design considerations (what are they made from?) I had a set of Emerald wings that didn't have wipers installed, so I added some myself. For the flap wipers, I used the curved spine of the plastic ring binders you can find in office supply stores (cut off the tabs). For the aileron wipers, I cut 1/2" strips of thin mylar (overhead slide material) and used double-sided tape to attach them to the aileron. This works well for molded wings, but for foam-core, you either have to go with the flat mylar wipers (fixed to the wing and floating over the gap and control surface), or you will have to cut out a curved indentation in the hinge for the knuckle wiper. -- tim RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] New Receiver Standard
Well, at the very least we should band together and do the following: ask all the mfrs to release and swear to their specs for bandwidth at -6 and -60 db, sensitivity for 10 db s/(s+n), current drain, low voltage limit (and maybe more that others more savvy than I might propose). Maybe we could strike a blow for the good cause. __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] test
been booted agian! RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Lead Acid Shelf Life
We use lead acid batteries in a product we manufacture. A few of the batteries were left in our warehouse for over a year without charging. When we tried to use one of them, it did not have any capacity. We contacted the battery manufacturer's engineering department and they gave us a fix for rejuvenating a battery that had sulfated. The fix is to charge the battery with a constant current of C/20 for 24 hours. A 5 amp hour battery would be charged at 5/20 or .25amp. It must be a true constant current that allows the voltage to rise above the normal charge voltage of about 2.5 volts/per cell. If the battery voltage is monitored during the charge it will rise to around 3 volts per cell and when the battery is de-sulfated it will start to drop similar to a fully charged nicad. We were told that we don't have to monitor the voltage because a 24 hour charge would be enough. I designed a circuit to perform the constant current charge but I have not tried it yet. Bill Groft Newark, Delaware - Original Message - From: "Andrew E. Mileski" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, January 10, 2001 4:44 PM Subject: Re: [RCSE] Lead Acid Shelf Life Bill Swingle wrote: Let's say you've bought an extra 12V lead acid battery. You don't expect to use it for quite a while. If the battery is brand new, you've not charged it nor connected any loads to it; what's the shelf life? If it is left to self-discharge, it will sulphate :( I have two identical gell batteries. I kept one charged, and let the other drop to about 8V over a period of about 4 years. Besides being very hard to charge at first, it doesn't hold a charge as long as the constantly charged battery. This means it is sulphated (lead sulphate has crystalized on the plates), and has permanently lost capacity. You need to "float" the batteries (keep them from discharging). I've used a 9V adaptor that outputs 14.5V no-load to keep the good battery charged. The average voltage maintained is around 13.4V - they battery is speced for 13.8V float. The batteries should last a very LONG time on float. -- Andrew E. Mileski RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Lead Acid Shelf Life
a fix for rejuvenating a battery that had sulfated. The fix is to charge the battery with a constant current of C/20 for 24 hours I deal with this on the main bank for my boat. It is 125ah All lead acid batteries need a high voltage/current charge occasionally to burn off the sulfate, on the large deep cylce batteries it is about 14 to 15v. at 30 amps.They also like a constant trickle charge which can be accomplished with a cheap $20.00 solar panel or 500mah 14v wall wart. For smaller batteries adjust accordingly. If your battery gets much below 12v you have already damaged it, you can only use about 30% of the capacity without reducing it's lifespan and capacity. If you dishcharge to 50% the battery will last less than 1/2 the time it would have at 30% discharges. These are rough figures, there is more accurate details on a number of websites, but I no longer have the urls... Mark Mech [EMAIL PROTECTED] www.aerofoam.com RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Wipers?
The individual slats from 1" plastic venetian blinds (K-mart, etc.) are a great raw material for wipers. Strips 3/8" or so wide can be cut from either finished edge. If the wing is skinned foam core, a slit is made between the two with an Exacto knife and a thin sanding tool such as the fine, flexible Permagrit can open the slit to the thickness of the slat to avoid a bump. The slat is pushed in about 3/16" and secured by wiucking in place in a few spots with thin CA glue between slat and skin. The slat has some curvature, but is easily bent more, as needed to clear the wing skin, before installing. It can also be spray painted in advance to match adjacent colors. On the wing side, clearance for the front edge of the wiper can be made with a round sanding tool. I put these on the flaps of my GENIE #18. It took only a few minutes and added a real nice touch, getting rid of the open gap and helping to keep out dust and dirt. Looks a lot like they are part of a molded skin. See http://www.proptwisters.org/jouster2/. Click on the #3 link and page down until you come to the pics of the yellow ship. Several of the thumbnails can be clicked on to enlarge. -- From: Daniel Armstrong [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [RCSE] Wipers? Date: Sunday, September 10, 2000 11:36 AM I have noticed that wipers have started to be used regularly now on many of the upper end of the range models ( look here to see what I mean http://www.shredair.com/stratos2.html). I am starting to design a new 3.6 metre model and want to use wipers on both ailerons and flaps, could some one with experience of wipers tell me how they are contructed and any special design considerations (what are they made from?) Thanks for any help Daniel RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
Re: [RCSE] Re: Winch launches
Jeff Reid Wrote: I've seen the HSS club winch motor get stalled on a launch with a stronger than "contest legal" battery. Jeff, What is stronger than contest legal in an HSS (Harbor Soaring Society) battery? HSS contests are TD contests. F3B does have restrictions but TD contest don't. Bob Pope CA, USA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
RE: [RCSE] Karlton, what month is it ??
Will Karlton be assessed for vendor bashing in the wrong month?? -Original Message- From: Jon Stone [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 10, 2001 12:05 PM To: [EMAIL PROTECTED]; Karlton Spindle Subject: [RCSE] Karlton, what month is it ?? I thought January was NOT Sal bashing month. Someone's going out of turn. BTW, on customer bash month, the vendors had better name names, just like everyone else does. Then all the vendors can know which customers not to deal with, too. A scarcastic :-) for the humor impared. Hope I don't end up on someone's list. I'm about to order a few hundred $'s of carbon foam. Jon Stone RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] What do you use?
Hi All, I maintain the winches for my club and I always put #30 - 295 lb. twisted line on the winch spools. We have a lot of blackberry plants and the really chew up monofilament line and of course the twisted line doesn't tangle when it is new line mono does. Braided line just doesn't seem, to me any way, to have the snap that the twisted line does. We also use #9 - 84 lb twisted line on the retriever. What line do you guys and gals use and why? Gary Baldwin Tallahassee, Florida RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
