Today's Message Index:
----------------------
1. 02:22 PM - Fuse for strobes (Gary L Vogt)
2. 02:40 PM - Re: Fuse for strobes (Linn Walters)
3. 03:26 PM - Re: Fuse for strobes (Gary L Vogt)
4. 06:04 PM - Re: Fuse for strobes (Rick Lindstrom)
5. 06:07 PM - Re: Fuse for strobes (FLYaDIVE)
6. 06:07 PM - Re: Fuse for strobes (Linn Walters)
7. 07:02 PM - Re: Fuse for strobes (n32romeo@AOL.COM)
8. 10:16 PM - Re: Fuse for strobes (n32romeo@AOL.COM)
9. 11:02 PM - Re: Fuse for strobes (Gary L Vogt)
10. 11:03 PM - Re: Fuse for strobes (Gary L Vogt)
11. 11:05 PM - Re: Fuse for strobes (Gary L Vogt)
12. 11:15 PM - Re: Fuse for strobes (Gary L Vogt)
Message 1
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| Subject: | Fuse for strobes |
A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine on
the ground. Worked fined in flight right up until landing. When the fuel pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp fuse.
Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and it
holds.
Possible scenario is that the fuel pump draws too much current. New strobes would
not be drawing too much current? Would they?
Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
The only real solution is to move the strobes to their own fuse/circuit breaker.
Unless someone out there knows something I don't.
Gary
Sent from my iPad
Message 2
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| Subject: | Re: Fuse for strobes |
Depending on which strobes you installed, the current draw could be 8A
.... or more just for the strobes. I have no clue what the fuel pump
draws ..... but I'll bet Garner knows for sure. I'm guessing it's a
couple A or more.
Linn
On 9/27/2013 5:15 PM, Gary L Vogt wrote:
>
> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine on
the ground. Worked fined in flight right up until landing. When the fuel pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and it
holds.
>
> Possible scenario is that the fuel pump draws too much current. New strobes would
not be drawing too much current? Would they?
>
> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
>
> The only real solution is to move the strobes to their own fuse/circuit breaker.
>
> Unless someone out there knows something I don't.
>
> Gary
> Sent from my iPad
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 3
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| Subject: | Re: Fuse for strobes |
These are the same Aeroflash strobes that 'supposedly' came with the plane. I got
them from Garner.
Gary
Sent from my iPad
On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
> Depending on which strobes you installed, the current draw could be 8A .... or
more just for the strobes. I have no clue what the fuel pump draws ..... but
I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
> Linn
>
>
> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
>>
>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine
on the ground. Worked fined in flight right up until landing. When the fuel pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and
it holds.
>>
>> Possible scenario is that the fuel pump draws too much current. New strobes
would not be drawing too much current? Would they?
>>
>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
>>
>> The only real solution is to move the strobes to their own fuse/circuit breaker.
>>
>> Unless someone out there knows something I don't.
>>
>> Gary
>> Sent from my iPad
>>
>>
>>
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>>
>>
>
>
>
>
>
Message 4
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| Subject: | Re: Fuse for strobes |
The newly TSO'd Aveo Ultra Galactica wingtip lights (nav & strobe) draw very little
current, eliminate the power supplies, are incredibly bright. Why not make
a real improvement while you're at it?
Rick Lindstrom
Aveo Engineering Southwest
AA1C, AA5B owner.
Sent from my iPhone
On Sep 27, 2013, at 2:15 PM, Gary L Vogt <teamgrumman@yahoo.com> wrote:
>
> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine on
the ground. Worked fined in flight right up until landing. When the fuel pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and it
holds.
>
> Possible scenario is that the fuel pump draws too much current. New strobes would
not be drawing too much current? Would they?
>
> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
>
> The only real solution is to move the strobes to their own fuse/circuit breaker.
>
> Unless someone out there knows something I don't.
>
> Gary
> Sent from my iPad
>
>
>
>
Message 5
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| Subject: | Re: Fuse for strobes |
Gary:
I do not have the Cheetah Manual in front of me but, in the POH for the
Traveler four (4) items are tied to the same 5 Amp Circuit Breaker - Fuel
Pump, Hobbs Meter, Strobe and Starter. I personally think that is too many
things to a 5 Amp CB. The POH also says turn OFF the Strobes and Fuel Pump
when starting. That sure sounds like a bit of backpedaling after the
schematics were drawn and plane submitted to the FAA for final review, I
guess the easiest thing to do was rewrite a few lines in the POH so as to
reduce the current load on a 5 Amp CB.
I would do as you surmise - Add a separate CB for the Strobes. But, before
doing that check two more things:
1 - What is the current draw for today's AeroFlash Strobes. Maybe the
current draw is higher because of higher output of the strobe.
AND - Just for testing: Separate the Strobe lines. Put a inline fuse of
double the rated strobe current draw - You did say a 10 Amp fuse worked.
The only issue with the fuse or CB size is the size of the supply wires.
A CB or a fuse only protects the feed wire not the item on the end of the
wire. So, if the wire can handle say 12 Amps a 10 Amp CB is acceptable.
2 - Since all seams fine for the Ground Check and the In-flight Check.
Maybe the problem is related to vibration and either a Poor Ground causing
higher current draw or a wire shorting out with the vibration of the
landing.
These are the simple things to check. Of course if the original wiring has
dried and cracked that will be harder to trace down.
Oh, as you stated, if they are the original strobes how old is original?
As the charge capacitor for the flash tube gets old they dry out and the
current draw goes up. How much I do not know, but, it could take it beyond
the rated levels.
Barry
On Fri, Sep 27, 2013 at 5:15 PM, Gary L Vogt <teamgrumman@yahoo.com> wrote:
> >
>
> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked
> fine on the ground. Worked fined in flight right up until landing. When the
> fuel pump was turned on, the fuse blew. Duplicated the problem twice.
> Installed a 6amp fuse. Same thing. Installed an 8amp fuse. Same thing.
> Installed a 10amp and it holds.
>
> Possible scenario is that the fuel pump draws too much current. New
> strobes would not be drawing too much current? Would they?
>
> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse
> failures.
>
> The only real solution is to move the strobes to their own fuse/circuit
> breaker.
>
> Unless someone out there knows something I don't.
>
> Gary
> Sent from my iPad
>
>
Message 6
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| Subject: | Re: Fuse for strobes |
I didn't think they used as much current as the true flashtubes, but I
may be wrong ...... I guess you'll have to measure the currents to see
what's up. Also, there may be more stuff hooked to that fuse than the
aeroflash and boost pump. Stuff gets added along the way.
Linn
On 9/27/2013 6:20 PM, Gary L Vogt wrote:
>
> These are the same Aeroflash strobes that 'supposedly' came with the plane. I
got them from Garner.
>
> Gary
> Sent from my iPad
>
> On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
>>
>> Depending on which strobes you installed, the current draw could be 8A ....
or more just for the strobes. I have no clue what the fuel pump draws ..... but
I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
>> Linn
>>
>>
>> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
>>>
>>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine
on the ground. Worked fined in flight right up until landing. When the fuel pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and
it holds.
>>>
>>> Possible scenario is that the fuel pump draws too much current. New strobes
would not be drawing too much current? Would they?
>>>
>>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
>>>
>>> The only real solution is to move the strobes to their own fuse/circuit breaker.
>>>
>>> Unless someone out there knows something I don't.
>>>
>>> Gary
>>> Sent from my iPad
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----
>>> No virus found in this message.
>>> Checked by AVG - www.avg.com
>>>
>>>
>>
>>
>>
>>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 7
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| Subject: | Re: Fuse for strobes |
According to the Aeroflash website, the factory ones for our planes draw 1.
8amps at 12 volts per side. So 3.6amps for the set.
http://www.aeroflash.com/aeroflash_wing_tip.php
When I installed them some 15 years ago I used the spare fuse location (whi
ch when I pulled off the factory sticker that said "Spare", was labeled "St
robe" underneath). They are by themselves with a 5amp fuse and I never had
any problems, till a power supply died this year.
Rich Harrison
'76 AA-1B
-----Original Message-----
From: Linn Walters <flying-nut@cfl.rr.com>
Sent: Fri, Sep 27, 2013 6:08 pm
Subject: Re: TeamGrumman-List: Fuse for strobes
>
I didn't think they used as much current as the true flashtubes, but I
may be wrong ...... I guess you'll have to measure the currents to see
what's up. Also, there may be more stuff hooked to that fuse than the
aeroflash and boost pump. Stuff gets added along the way.
Linn
On 9/27/2013 6:20 PM, Gary L Vogt wrote:
m>
>
> These are the same Aeroflash strobes that 'supposedly' came with the plan
e. I
got them from Garner.
>
> Gary
> Sent from my iPad
>
> On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
com>
>>
>> Depending on which strobes you installed, the current draw could be 8A .
...
or more just for the strobes. I have no clue what the fuel pump draws ....
. but
I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
>> Linn
>>
>>
>> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
com>
>>>
>>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked
fine
on the ground. Worked fined in flight right up until landing. When the fuel
pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6am
p
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and
it
holds.
>>>
>>> Possible scenario is that the fuel pump draws too much current. New str
obes
would not be drawing too much current? Would they?
>>>
>>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fus
e
failures.
>>>
>>> The only real solution is to move the strobes to their own fuse/circuit
breaker.
>>>
>>> Unless someone out there knows something I don't.
>>>
>>> Gary
>>> Sent from my iPad
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----
>>> No virus found in this message.
>>> Checked by AVG - www.avg.com
>>>
>>>
>>
>>
>>
>>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
Message 8
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| Subject: | Re: Fuse for strobes |
Whoops, I mistaken this with the the switch location. Looking at a pictu
re of my panel the fuse is shared with the fuel pump. Still, no issues sin
ce I installed the strobes.
Rich
-----Original Message-----
From: n32romeo <n32romeo@AOL.COM>
Sent: Fri, Sep 27, 2013 7:03 pm
Subject: Re: TeamGrumman-List: Fuse for strobes
According to the Aeroflash website, the factory ones for our planes draw 1.
8amps at 12 volts per side. So 3.6amps for the set.
http://www.aeroflash.com/aeroflash_wing_tip.php
When I installed them some 15 years ago I used the spare fuse location (whi
ch when I pulled off the factory sticker that said "Spare", was labeled "St
robe" underneath). They are by themselves with a 5amp fuse and I never had
any problems, till a power supply died this year.
Rich Harrison
'76 AA-1B
-----Original Message-----
From: Linn Walters <flying-nut@cfl.rr.com>
Sent: Fri, Sep 27, 2013 6:08 pm
Subject: Re: TeamGrumman-List: Fuse for strobes
>
I didn't think they used as much current as the true flashtubes, but I
may be wrong ...... I guess you'll have to measure the currents to see
what's up. Also, there may be more stuff hooked to that fuse than the
aeroflash and boost pump. Stuff gets added along the way.
Linn
On 9/27/2013 6:20 PM, Gary L Vogt wrote:
m>
>
> These are the same Aeroflash strobes that 'supposedly' came with the plan
e. I
got them from Garner.
>
> Gary
> Sent from my iPad
>
> On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
com>
>>
>> Depending on which strobes you installed, the current draw could be 8A .
...
or more just for the strobes. I have no clue what the fuel pump draws ....
. but
I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
>> Linn
>>
>>
>> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
com>
>>>
>>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked
fine
on the ground. Worked fined in flight right up until landing. When the fuel
pump
was turned on, the fuse blew. Duplicated the problem twice. Installed a 6am
p
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and
it
holds.
>>>
>>> Possible scenario is that the fuel pump draws too much current. New str
obes
would not be drawing too much current? Would they?
>>>
>>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fus
e
failures.
>>>
>>> The only real solution is to move the strobes to their own fuse/circuit
breaker.
>>>
>>> Unless someone out there knows something I don't.
>>>
>>> Gary
>>> Sent from my iPad
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----
>>> No virus found in this message.
>>> Checked by AVG - www.avg.com
>>>
>>>
>>
>>
>>
>>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
>
>
st" target="_blank">http://www.matronics.com/Navigator?TeamGrumman-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
Message 9
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| Subject: | Re: Fuse for strobes |
http://www.aveoengineering.com/index.php/photo-gallery-ultra-galactica
Based on its size (I don't think it will fit under the nav lens) and the fac
t that the strobe faces backward, and that it costs twice as much as the oth
er strobes, it isn't likely I could sell many.
Gary
Sent from my iPad
On Sep 27, 2013, at 6:04 PM, Rick Lindstrom <tigerized@gmail.com> wrote:
m>
>
> The newly TSO'd Aveo Ultra Galactica wingtip lights (nav & strobe) draw ve
ry little current, eliminate the power supplies, are incredibly bright. Why n
ot make a real improvement while you're at it?
>
> Rick Lindstrom
> Aveo Engineering Southwest
>
> AA1C, AA5B owner.
>
> Sent from my iPhone
>
> On Sep 27, 2013, at 2:15 PM, Gary L Vogt <teamgrumman@yahoo.com> wrote:
>
m>
>>
>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fi
ne on the ground. Worked fined in flight right up until landing. When the fu
el pump was turned on, the fuse blew. Duplicated the problem twice. Installe
d a 6amp fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 1
0amp and it holds.
>>
>> Possible scenario is that the fuel pump draws too much current. New strob
es would not be drawing too much current? Would they?
>>
>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse f
ailures.
>>
>> The only real solution is to move the strobes to their own fuse/circuit b
reaker.
>>
>> Unless someone out there knows something I don't.
>>
>> Gary
>> Sent from my iPad
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
>
>
Message 10
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| Subject: | Re: Fuse for strobes |
Extra stuff added to the only planes I've had fuses blow? Not likely.
Gary
Sent from my iPad
On Sep 27, 2013, at 6:07 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>
> I didn't think they used as much current as the true flashtubes, but I may be
wrong ...... I guess you'll have to measure the currents to see what's up. Also,
there may be more stuff hooked to that fuse than the aeroflash and boost
pump. Stuff gets added along the way.
> Linn
>
> On 9/27/2013 6:20 PM, Gary L Vogt wrote:
>>
>> These are the same Aeroflash strobes that 'supposedly' came with the plane.
I got them from Garner.
>>
>> Gary
>> Sent from my iPad
>>
>> On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
>>
>>>
>>> Depending on which strobes you installed, the current draw could be 8A ....
or more just for the strobes. I have no clue what the fuel pump draws .....
but I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
>>> Linn
>>>
>>>
>>> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
>>>>
>>>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fine
on the ground. Worked fined in flight right up until landing. When the fuel
pump was turned on, the fuse blew. Duplicated the problem twice. Installed a 6amp
fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp and
it holds.
>>>>
>>>> Possible scenario is that the fuel pump draws too much current. New strobes
would not be drawing too much current? Would they?
>>>>
>>>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse failures.
>>>>
>>>> The only real solution is to move the strobes to their own fuse/circuit breaker.
>>>>
>>>> Unless someone out there knows something I don't.
>>>>
>>>> Gary
>>>> Sent from my iPad
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----
>>>> No virus found in this message.
>>>> Checked by AVG - www.avg.com
>>
>>
>>
>>
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>
>
>
>
>
Message 11
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| Subject: | Re: Fuse for strobes |
In an AA5x series, the strobes, fuel pump and starter are on the same 5amp f
use. Look at my wiring diagram on my web site, click on Technical stuff.
Gary
Sent from my iPad
On Sep 27, 2013, at 7:02 PM, n32romeo@AOL.COM wrote:
> According to the Aeroflash website, the factory ones for our planes draw 1
.8amps at 12 volts per side. So 3.6amps for the set.
> http://www.aeroflash.com/aeroflash_wing_tip.php
> When I installed them some 15 years ago I used the spare fuse location (wh
ich when I pulled off the factory sticker that said "Spare", was labeled "St
robe" underneath). They are by themselves with a 5amp fuse and I never had a
ny problems, till a power supply died this year.
> Rich Harrison
> '76 AA-1B
> -----Original Message-----
> From: Linn Walters <flying-nut@cfl.rr.com>
> To: teamgrumman-list <teamgrumman-list@matronics.com>
> Sent: Fri, Sep 27, 2013 6:08 pm
> Subject: Re: TeamGrumman-List: Fuse for strobes
>
m>
>
> I didn't think they used as much current as the true flashtubes, but I
> may be wrong ...... I guess you'll have to measure the currents to see
> what's up. Also, there may be more stuff hooked to that fuse than the
> aeroflash and boost pump. Stuff gets added along the way.
> Linn
>
> On 9/27/2013 6:20 PM, Gary L Vogt wrote:
om>
> >
> > These are the same Aeroflash strobes that 'supposedly' came with the pla
ne. I
> got them from Garner.
> >
> > Gary
> > Sent from my iPad
> >
> > On Sep 27, 2013, at 2:39 PM, Linn Walters <flying-nut@cfl.rr.com> wrote:
> >
.com>
> >>
> >> Depending on which strobes you installed, the current draw could be 8A .
...
> or more just for the strobes. I have no clue what the fuel pump draws ...
.. but
> I'll bet Garner knows for sure. I'm guessing it's a couple A or more.
> >> Linn
> >>
> >>
> >> On 9/27/2013 5:15 PM, Gary L Vogt wrote:
.com>
> >>>
> >>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked
fine
> on the ground. Worked fined in flight right up until landing. When the fue
l pump
> was turned on, the fuse blew. Duplicated the problem twice. Installed a 6a
mp
> fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 10amp an
d it
> holds.
> >>>
> >>> Possible scenario is that the fuel pump draws too much current. New st
robes
> would not be drawing too much current? Would they?
> >>>
> >>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fu
se
> failures.
> >>>
> >>> The only real solution is to move the strobes to their own fuse/circui
t
> breaker.
> >>>
> >>> Unless someone out there knows something I don't.
> >>>
> >>> Gary
> >>> Sent from my iPad
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> -----
> >>> No virus found in this message.
> >>> Checked by AVG - www.avg.com
> >>>
> >>>
> >>
> >>
> >>
> >>
> >
> >
> >
> >
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> >
> >
>
>
> st" target="_blank">http://www.matronics.com/Navigator?TeamGrumman-List
> tp://forums.matronics.com
> _blank">http://www.matronics.com/contribution
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 12
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| Subject: | Re: Fuse for strobes |
They are new strobe kits from Fletchair. The blown fuse only seems to happe
n during the landing phase. Even when leaving the fuel pump on for the whole
flight. Too much vibration on two different planes with the same kits? Not
likely.
My guess is the new strobes draw more current. How much? I'll have find out
. It's 20AWG wire from the fuse to where it separates for each wing/strobe. T
hen 20AWG wire to each wing tip.
Gary
Sent from my iPad
On Sep 27, 2013, at 6:06 PM, FLYaDIVE <flyadive@gmail.com> wrote:
> Gary:
>
> I do not have the Cheetah Manual in front of me but, in the POH for the Tr
aveler four (4) items are tied to the same 5 Amp Circuit Breaker - Fuel Pump
, Hobbs Meter, Strobe and Starter. I personally think that is too many thin
gs to a 5 Amp CB. The POH also says turn OFF the Strobes and Fuel Pump when
starting. That sure sounds like a bit of backpedaling after the schematics
were drawn and plane submitted to the FAA for final review, I guess the eas
iest thing to do was rewrite a few lines in the POH so as to reduce the curr
ent load on a 5 Amp CB.
>
> I would do as you surmise - Add a separate CB for the Strobes. But, befor
e doing that check two more things:
> 1 - What is the current draw for today's AeroFlash Strobes. Maybe the cur
rent draw is higher because of higher output of the strobe.
> AND - Just for testing: Separate the Strobe lines. Put a inline fuse of d
ouble the rated strobe current draw - You did say a 10 Amp fuse worked. The
only issue with the fuse or CB size is the size of the supply wires. A CB o
r a fuse only protects the feed wire not the item on the end of the wire. S
o, if the wire can handle say 12 Amps a 10 Amp CB is acceptable.
>
> 2 - Since all seams fine for the Ground Check and the In-flight Check. Ma
ybe the problem is related to vibration and either a Poor Ground causing hig
her current draw or a wire shorting out with the vibration of the landing.
>
> These are the simple things to check. Of course if the original wiring ha
s dried and cracked that will be harder to trace down.
>
> Oh, as you stated, if they are the original strobes how old is original? A
s the charge capacitor for the flash tube gets old they dry out and the curr
ent draw goes up. How much I do not know, but, it could take it beyond the r
ated levels.
>
> Barry
>
>
>
>
> On Fri, Sep 27, 2013 at 5:15 PM, Gary L Vogt <teamgrumman@yahoo.com> wrote
:
m>
>>
>> A few months ago I installed Aeroflash strobes on a 79 Cheetah. Worked fi
ne on the ground. Worked fined in flight right up until landing. When the fu
el pump was turned on, the fuse blew. Duplicated the problem twice. Installe
d a 6amp fuse. Same thing. Installed an 8amp fuse. Same thing. Installed a 1
0amp and it holds.
>>
>> Possible scenario is that the fuel pump draws too much current. New strob
es would not be drawing too much current? Would they?
>>
>> Last week I installed the same strobe kit on a 77 Tiger. Same exact fuse f
ailures.
>>
>> The only real solution is to move the strobes to their own fuse/circuit b
reaker.
>>
>> Unless someone out there knows something I don't.
>>
>> Gary
>> Sent from my iPad
>>
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st
>> ==========
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>> ==========
>> le, List Admin.
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>
>
>
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