---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Sun 03/11/12: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:09 AM - Re: Finally! A decent radio antenna (Thom Riddle) 2. 05:17 AM - Re: Finally! A decent radio antenna (Richard Pike) 3. 06:41 AM - Re: Re: Finally! A decent radio antenna (Jack B. Hart) 4. 06:41 AM - Re: Re: Finally! A decent radio antenna (John Hauck) 5. 08:41 AM - Firestar IILanding Gear (Andy and Sheila Slinkard) 6. 09:08 AM - Past Flights (John Hauck) 7. 10:11 AM - Re: Past Flights (russ kinne) 8. 09:41 PM - Rotax 912 in Drones... (Nick Cassara) 9. 10:14 PM - Re: Rotax 912 in Drones... (Larry Cottrell) ________________________________ Message 1 _____________________________________ Time: 05:09:36 AM PST US Subject: Kolb-List: Re: Finally! A decent radio antenna From: "Thom Riddle" The antenna on my Slingshot is on the tail boom and has given trouble-free service with good transmit and reception. It is mounted on a hat shaped piece of aluminum, roughly 5"x5" riveted to the top of the boom tube with coax run through boom tube. It has room between the hat and boom tube to get to the connections. Seems that getting it behind the engine is indeed a good idea. I don't have detail photo, but this shot shows its location. -------- Thom Riddle Buffalo, NY (9G0) Kolb Slingshot SS-021 Jabiru 2200A #1574 Tennessee Prop 64x32 Truth is what stands the test of experience. - Albert Einstein Read this topic online here: http://forums.matronics.com/viewtopic.php?p=368148#368148 Attachments: http://forums.matronics.com//files/rtfrntqrtrcropped_125.jpg ________________________________ Message 2 _____________________________________ Time: 05:17:23 AM PST US Subject: Kolb-List: Re: Finally! A decent radio antenna From: "Richard Pike" Roger that John, it seemed to me that an ELT antenna would be right on the money. In hindsight, it was the location. I am sure that if we still had the ELT antenna in place of my home made whip it would do just fine. Unfortunately it didn't come back from the avionics shop. We have a noise filter installed, it is a multi stage capacitor setup designed for cars that make electrical noise and mess up the stereo. It goes into the power line for the radio, it helped a little, but not much. The antenna is now directly opposite the magneto end of the engine, almost exactly in line with the crankshaft. I am guessing that the mag is making the electrical racket and having the antenna right where the engine blocks it off is why it works at that spot. -------- Richard Pike Kolb MKIII N420P (420ldPoops) richard (at) bcchapel(dot)org Kingsport, TN 3TN0 Now faith is the substance of things hoped for, the evidence of things not seen. Hebrews 11:1 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=368149#368149 ________________________________ Message 3 _____________________________________ Time: 06:41:12 AM PST US From: "Jack B. Hart" Subject: Re: Kolb-List: Re: Finally! A decent radio antenna At 05:17 AM 3/11/12 -0700, you wrote: > Richard, Initially, I experienced a lot of engine radio noise. Found that the unshielded magneto kill switch wire was radiating like crazy. Rather than replace it with a shielded wire, I mounted the kill switch back on the engine. With that move good things happened. To activate the switch I use some woven fish line. Saved a little weight. No condenser was used on the voltage regulator output. Jack B. Hart FF004 Winchester, IN ________________________________ Message 4 _____________________________________ Time: 06:41:55 AM PST US From: "John Hauck" Subject: RE: Kolb-List: Re: Finally! A decent radio antenna I am guessing that the mag is making the electrical racket and having the antenna right where the engine blocks it off is why it works at that spot. -------- Richard Pike Richard P/Kolbers: Ignition noise and alternator noise are different and change with engine rpm. Pretty easy to distinguish between the two. Forgot to mention last night, I had more problems eliminating RF noise with the 447 two stroke than the 912 4 stroke. Back in the 1980's it was a sin to fly with resistor spark plugs because the spark plug wire caps had internal resistors. However, I discovered the 447 flew great with Bosch resistor plugs and cut down on ignition noise. Cannot remember the number, but it was the equivalent of the NGK. In fact, they were Bosch Platinum. I went that route after the fine wire NGK plug came apart and put me down on Grand Island, NY, in 1988. Never fouled a Bosch Platinum. In order to use the Bosch Platinum plugs I also had to run Bosch spark plug wires. A mid-1970's Volvo wire set by Bosch came with metal caps and internal resistors. I was able to get two sets of wires out of one Volvo set. If one flew a lot, the caps wore out, usually stress cracking the metal caps. The above set up with the large capacitor did a good job of quieting the 447, in addition to locating the antenna under the nose pod. I started using the ELT, a Pointer, antennas on the FS because they could be purchased for $15.00 in the 80's. john h mkIII Titus, Alabama ________________________________ Message 5 _____________________________________ Time: 08:41:57 AM PST US From: "Andy and Sheila Slinkard" Subject: Kolb-List: Firestar IILanding Gear Question: Has anyone put Slingshot steel landing gear on a Firestar II? Process? Success? Pictures please. Thanks, Andy ________________________________ Message 6 _____________________________________ Time: 09:08:14 AM PST US From: "John Hauck" Subject: Kolb-List: Past Flights Kolbers: Rice, Dike, and the Mississippi River, 29 May 2009. Last day out on a flight from the Rock House, near Burns Junction, OR. Hopefully, the weather will be much better for the Rock House Gang when we get together the last week of June this year. john h mkIII Titus, Alabama ________________________________ Message 7 _____________________________________ Time: 10:11:45 AM PST US Subject: Re: Kolb-List: Past Flights From: russ kinne NIIIIICE pic, John -- thanx for sending Russ do not archive On Mar 11, 2012, at 12:07 PM, John Hauck wrote: > Kolbers: > > Rice, Dike, and the Mississippi River, 29 May 2009. > > Last day out on a flight from the Rock House, near Burns Junction, OR. > > Hopefully, the weather will be much better for the Rock House Gang when we > get together the last week of June this year. > > john h > mkIII > Titus, Alabama > ________________________________ Message 8 _____________________________________ Time: 09:41:05 PM PST US From: "Nick Cassara" Subject: Kolb-List: Rotax 912 in Drones... Hello Kolber's, Uncle Sam is using the Rotax 912 is in some of the drones that we are now sharing the skies with. My guess is "we" are the deep pocket that allowed for the development of the fuel injection upgrade project. Nick Cassara Palmer Alaska ________________________________ Message 9 _____________________________________ Time: 10:14:19 PM PST US Subject: Re: Kolb-List: Rotax 912 in Drones... From: Larry Cottrell With their record of Toilet seats and hammers, kind of makes you wonder what they are paying for them. Larry On Sun, Mar 11, 2012 at 10:37 PM, Nick Cassara wrote: > Hello Kolber=92s,**** > > ** ** > > Uncle Sam is using the Rotax 912 is in some of the drones that we are no w > sharing the skies with. My guess is =93we=94 are the deep pocket that al lowed > for the development of the fuel injection upgrade project.**** > > ** ** > > Nick Cassara**** > > Palmer Alaska**** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > ** ** > > * > =========== =========== =========== =========== > * > > -- *If you forward this email, or any part of it, please remove my email address before sending.* ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.