Today's Message Index:
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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
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| Subject: | Re: Finally! A decent radio antenna |
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
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| Subject: | Re: Finally! A decent radio antenna |
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.
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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
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| Subject: | 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
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| Subject: | 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
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| Subject: | Firestar IILanding Gear |
Question: Has anyone put Slingshot steel landing gear on a Firestar II?
Process? Success? Pictures please.
Thanks,
Andy
Message 6
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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
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| Subject: | Re: Past Flights |
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
> <South of Memphis, TN.JPG>
Message 8
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| Subject: | 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
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| Subject: | Re: Rotax 912 in Drones... |
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 <nickc@mtaonline.net> 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****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> *
>
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