Today's Message Index:
----------------------
1. 08:44 AM - Re: Re: Private Pilot Training (Tim Olson)
2. 08:55 AM - Re: Re: Looking to upgrade from Grove discs and pads (Tim Olson)
3. 05:49 PM - The (Ground) Plane Truth (kearney)
4. 06:28 PM - Re: The (Ground) Plane Truth (Carl Froehlich)
5. 06:52 PM - Re: The (Ground) Plane Truth (kearney)
6. 07:06 PM - Re: The (Ground) Plane Truth (Lenny Iszak)
7. 07:12 PM - Re: Re: The (Ground) Plane Truth (Carl Froehlich)
8. 07:49 PM - Re: Re: Private Pilot Training (Kelly McMullen)
9. 08:01 PM - Re: The (Ground) Plane Truth (Kelly McMullen)
10. 10:27 PM - Re: Private Pilot Training (Bob Turner)
11. 11:06 PM - Re: The (Ground) Plane Truth (Bob Turner)
Message 1
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| Subject: | Re: Private Pilot Training |
I think as the father its pretty much a given that the bulk of the
money flow is from dad to kid....so even if she paid me, Id still be
many tens of thousands behind on cash by the time shes old enough to
get her Private. :)
Truth is , to be able to see her finish Im happy to pay for the plane,
insurance, fuel, and even some fuel so she remains current after shes
done. I want her spending her money on College. And no, I do not need
any more adult children so please dont ask if you can call me daddy too
and get free fuel. :).
Tim
> On May 2, 2018, at 7:38 PM, Bob Turner <bobturner@alum.rpi.edu> wrote:
>
>
>
> Kelly McMullen wrote:
>> Another minor complication, depending on how aircraft is registered, AFAIK
for an instructor to teach for hire in an experimental (for other than transition
waiver) the student must have an ownership interest in the aircraft.
>>
>
>
> The actual rule is that the EAB airplane owner may not be compensated in any
way, for the use of his airplane. In this case, I think it's a fair assumption
that Tim is not charging his daughter for the airplane.
> Unless some over-zealous lawyer wants to argue that being a proud father is "compensation".
-:)
>
> --------
> Bob Turner
> RV-10 QB
>
Message 2
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| Subject: | Re: Looking to upgrade from Grove discs and pads |
One addition to this:
Right now they're still HOPING to push thru something that allows
Technically Advanced Aircraft to qualify, rather than only complex.
That would be a huge boost. Hope that happens, as it would then make
it possible for an RV-10 owner to do both commercial and CFI in their
own plane, where it makes sense.
And, regarding the FSDO for CFI checkrides, I know that the common
statement is that all CFI checkrides are done with the FSDO.
That's still sort of true, but it does depend on the FSDO and
their personnel availability. When I did my CFI checride, I
did it with the Orlando FSDO but it was set up by my instructor
and a local DPE, who got the approval to do it. So, depending on
where you do the actual ride and who does your CFI training, it
may indeed not need to be with an FAA official employee, but a DPE.
I do agree with Bob that it may be that in some situations,
it would be hard to find an examiner who would ride in an
EAB. It's been a constant worry of mine for my daughter's
checkride. I've been told by many people not to worry because
they're sure that many of them would be happy to, and my
old DPE up here was happy to as well. But, they may be
a little more squeamish. Luckily I found a DPE an hour away
that owns a Rocket, so I didn't even call around, I just
decided to go to him. No bias that way.
Tim
On 05/02/2018 07:54 PM, Bob Turner wrote:
>
> Just so everyone's clear: The rule change applies to the check ride, only. Commercial
applicants still need to have 10 hours of RG instruction logged. As far
as I know this still has to be in an actual retractable gear airplane. (I have
previously suggested that a -10, with a "gear up -gear down" switch that actually
does nothing other than turn on or off a few lights, should be adequate.
Maybe some software that produces horrible scrapping noises if you land "gear
up". -:) )
>
> And, for the CFI: for the initial CFI certificate you need to go thru the FSDO,
and they will either give you the check ride, or assign you to one of a few
Designated examiners that they have approved for doing this. Does anyone know
if the FSDO inspectors or "special" DPEs will fly in an EAB? I believe they have
the right to say no.
>
> --------
> Bob Turner
> RV-10 QB
>
Message 3
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| Subject: | The (Ground) Plane Truth |
Hi
I'll be the first to admit that my knowledge of radio physics is exceptionally
limited. This brings me to the question of ground planes. I am told that a ground
plane does not require metal to metal contact with an antenna. Is this correct?
The reason I ask is I am wondering if I should un-install antennas prior
to paint?
Cheers
Les
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=479827#479827
Message 4
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| Subject: | Re: The (Ground) Plane Truth |
Shoot fire, you might as well throw gas on the primer war fire....
Here is the deal. RF ground is a different animal from DC ground. I recommend
you remove all external antennas prior to paint. After paint re-install the
antennas using a star washer on the inside of the fuselage on the antenna mounting
studs. Done.
I have years of running HF and VHF mobile antennas pumping out 100+watts that where
on mag mounts. The mag mount itself had Mylar file between the magnet and
the car - along with the car paint. This resulted in no metal to metal contact
- Infinity DC resistance. The antennas were perfectly happy to be RF coupled
to the car ground plane, just like RF is happy to pass through a capacitor.
Add the star washer anyway just to have a locking device and a DC connection
for noise (very low probability, but star washers are cheap).
But - no matter what you do check all antennas with a real antenna analyzer from
the radio (so that you check your coax and all connectors). This is how you
know stuff works before you fly. People call me up on radio problems and this
is the first thing I do. I find broken antenna mounts, cut or pulled out coax
and crimp connectors that are just ugly.
Have fun,
Carl
> On May 3, 2018, at 5:47 PM, kearney <kearney@shaw.ca> wrote:
>
>
> Hi
>
> I'll be the first to admit that my knowledge of radio physics is exceptionally
limited. This brings me to the question of ground planes. I am told that a ground
plane does not require metal to metal contact with an antenna. Is this correct?
The reason I ask is I am wondering if I should un-install antennas prior
to paint?
>
> Cheers
>
> Les
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=479827#479827
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: The (Ground) Plane Truth |
Thanks Carl.
I assume most avionics shops would have an analyzer. Is this correct?
Cheers
Les
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=479831#479831
Message 6
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| Subject: | Re: The (Ground) Plane Truth |
Les,
The ground plane does requires electrical contact with the base of the antenna.
Lenny
> On May 3, 2018, at 8:47 PM, kearney <kearney@shaw.ca> wrote:
>
>
> Hi
>
> I'll be the first to admit that my knowledge of radio physics is exceptionally
limited. This brings me to the question of ground planes. I am told that a ground
plane does not require metal to metal contact with an antenna. Is this correct?
The reason I ask is I am wondering if I should un-install antennas prior
to paint?
>
> Cheers
>
> Les
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=479827#479827
>
>
>
>
>
>
>
>
>
Message 7
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| Subject: | Re: The (Ground) Plane Truth |
Just find your local ham radio operator that has something like this: https:
//www.gigaparts.com/mfj-259c.html?gclid=EAIaIQobChMI6Niipvzq2gIVV4ezCh3UVA
UBEAQYASABEgL2VPD_BwE
Better yep, get one for you local EAA chapter as a shared tool.
Carl
> On May 3, 2018, at 6:51 PM, kearney <kearney@shaw.ca> wrote:
>
>
> Thanks Carl.
>
> I assume most avionics shops would have an analyzer. Is this correct?
>
> Cheers
>
> Les
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=479831#479831
>
>
>
>
>
>
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>
>
>
Message 8
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| Subject: | Re: Private Pilot Training |
My comments were with regard to an independent CFI charging for his/her
services with student in experimental.
If there is no transfer of funds, AFAIK no issue. I know that certain very
generous CFIs are literally giving of their
time and aircraft to provide transition training without FAA/insurance
involvement. I in fact benefited from
one such very generous individual.
If you don't want to be a sugar daddy, how about "Uncle"? 8^)
Sent from my IBM-360 main frame
On Thu, May 3, 2018 at 8:41 AM, Tim Olson <Tim@myrv10.com> wrote:
>
> I think as the father it=99s pretty much a given that the bulk of t
he money
> flow is from dad to kid....so even if she paid me, I=99d still be m
any tens
> of thousands behind on cash by the time she=99s old enough to get h
er
> Private. :)
> Truth is , to be able to see her finish I=99m happy to pay for the
plane,
> insurance, fuel, and even some fuel so she remains current after she
=99s
> done. I want her spending her money on College. And no, I do not need a
ny
> more adult children so please don=99t ask if you can call me daddy
too and
> get free fuel. :).
> Tim
>
>
> On May 2, 2018, at 7:38 PM, Bob Turner <bobturner@alum.rpi.edu> wrote:
>>
>>
>>
>> Kelly McMullen wrote:
>>
>>> Another minor complication, depending on how aircraft is registered,
>>> AFAIK for an instructor to teach for hire in an experimental (for other
>>> than transition waiver) the student must have an ownership interest in
the
>>> aircraft.
>>>
>>>
>>
>> The actual rule is that the EAB airplane owner may not be compensated in
>> any way, for the use of his airplane. In this case, I think it's a fair
>> assumption that Tim is not charging his daughter for the airplane.
>> Unless some over-zealous lawyer wants to argue that being a proud father
>> is "compensation". -:)
>>
>> --------
>> Bob Turner
>> RV-10 QB
>>
===========
===========
===========
===========
===========
>
>
Message 9
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| Subject: | Re: The (Ground) Plane Truth |
Waste of time Les. If you properly installed the antenna with gasket and/or
sealant
the paint shop should properly mask the antenna, so it doesn't get painted.
The grounding will be unchanged. On most com antennas, the ground path is
through
the 3 or 4 screws that attach the antenna to the doubler you put under the
fuselage skin.
The clean way to do that is to install nut plates on the doubler, then
rivet doubler to inside of fuselage skin.
That way the ground is with the nutplates and solid via rivets to fuselage.
Good installs include a bead of sealant around the outside edge of the
antenna.
Good paint shops protect antennas throughout skin prep and painting.
That said, be certain they protect the wheel bearings from pressure
washing, or repack the bearings before the
plane rolls out of the shop.
Kelly
Sent from my IBM-360 main frame
On Thu, May 3, 2018 at 5:47 PM, kearney <kearney@shaw.ca> wrote:
>
> Hi
>
> I'll be the first to admit that my knowledge of radio physics is
> exceptionally limited. This brings me to the question of ground planes. I
> am told that a ground plane does not require metal to metal contact with an
> antenna. Is this correct? The reason I ask is I am wondering if I should
> un-install antennas prior to paint?
>
> Cheers
>
> Les
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=479827#479827
>
>
Message 10
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| Subject: | Re: Private Pilot Training |
Kelly McMullen wrote:
> My comments were with regard to an independent CFI charging for his/her services
with student in experimental.
> ]
There is no prohibition on paying a cfi for instruction in an EAB. The prohibition
is on the airplane itself - it cannot be used for compensation. If the cfi
furnishes the airplane, part 91 imposes the usual commercial use restrictions,
since it is presumed that the airplane is being used to generate compensation
for the cfi. But if a good friend lets you use his EAB for free, then you may
pay the cfi. In the situation you described, if anything goes wrong, the insurance
company is within its rights to deny coverage.
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=479839#479839
Message 11
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| Subject: | Re: The (Ground) Plane Truth |
I usually agree with Carl, but not this time. Capacitive coupling at RF frequencies
usually has low impedance but does introduce an undesirable phase shift.
Mag mount car antennas can be designed to balance this shift out, and some feed
techniques (a gamma match as used in the Archer design) use a capacitor to introduce
a desired phase shift. But standard aircraft antennas need a zero phase
shift connection to ground. A good connection between the coax braid and the
ground plane will suffice for simple antennas (nothing but a wire in the base).
If the base has a matching network, then it will also need a good connection
to the braid.
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=479840#479840
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