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joe(at)kfiz.com
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 Posted: Fri Jan 12, 2007 8:30 am Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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Carlos,
I plan to use those strobes on my 601 XL. when I did a search on E-bay for
strobes, I found the same strobe control box used for squad cars, busses,
etc. Some have 6 strobes! there's no question that the power supply is the
same as the ones you listed below.
It would be cool to find an actual aerodynamic clear lens and mounting plate
for each wing and buy the E-bay box. You could have a strobe on each wing,
on the tail, on the belly, a disco ball in the baggage compartment, etc.
Does anyone know where you can get a clear "aircraft looking" lens fixture
for the wings?
Would the 3 light lens be alright for the XL wing? That way I don't have to
wire a taillight. Is that legal?
Joe
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carlossa52(at)gmail.com
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| Posted: Fri Jan 12, 2007 9:20 am Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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Joe, GS Air does sell the support+lens+leds+strobe tubes as a kit. See item LED-002 at $249.
If you want only the support and lens, maybe they do sell it. You have to ask.
A disco ball in the baggage compartment... Interesting idea...
Cheers
Carlos
Montreal, Canada
CH601-HD, plans.
On 12/01/07, Joe <joe(at)kfiz.com (joe(at)kfiz.com)> wrote:
[quote]...
It would be cool to find an actual aerodynamic clear lens and mounting plate
for each wing and buy the E-bay box. You could have a strobe on each wing,
on the tail, on the belly, a disco ball in the baggage compartment, etc.
Does anyone know where you can get a clear "aircraft looking" lens fixture
for the wings?
...[b]
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dredmoody(at)cox.net
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| Posted: Fri Jan 12, 2007 10:09 am Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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GS Air has a two wingtip unit system that satisfies all the arcs of visibility for night flight. Strobes and LED position lights are included inthe two aerodynamic units.
And BTW......."Death Before Disco!"
Ed Moody II
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Ron Lendon
Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI
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| Posted: Fri Jan 12, 2007 8:55 pm Post subject: Re: Zenith-List Digest: 16 Msgs - 01/11/07 |
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Carlos,
I just purchased the AeroFlash units from ACS, their PN: 11-04763
A little pricey $472.95, for the Double flash, 12V kit but I think it will take care of all the lighting needs for position and nav, and the Double flash strobes should help me be seen by others. The units are light and all metal construction except the lenses and such.
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_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
https://sites.google.com/site/corvairenginedata/ |
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dredmoody(at)cox.net
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| Posted: Sat Jan 13, 2007 7:24 am Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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At the risk of sounding like a paid advocate (which I am not) the GS Air package has a programmable strobe driver which allows you to use a momentary switch on the stick or the panel to toggle through single, double, triple, or quadruple flash settings inflight as the need arises. The least power consumption is acheived on single flash. If you are not in a high traffic area why waste the scant alternator power we have available? Also GS Air's system uses only two LED position light units (don't burn out and draw very little current) at the wingtips and has documented satisfaction of the arcs of visibility for the DAR or FAA guys when you certify your plane. We don't actually need a third light on the rudder unless you just want one there.
Ed Moody II
[quote] ---
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Terry Phillips
Joined: 11 Jan 2006
Posts: 346
Location: Corvallis, MT
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| Posted: Sat Jan 13, 2007 11:32 am Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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I like the looks of the GS package myself, but I am concerned about visibility from the rear. I am attaching a photo I took at ZAC of the left wing time of the 601XL. The light is attached close to the front of the wing on the fiberglass wing tip. It appears likely that the view of a wing tip light from immediately behind the A/C would be obscured by the wing. Probably, if one got far enough behind, the light could be seen. The question is would it meet the requirements of FAR 23.1385-23.1397.
FAR 23.1389 states, in part:
§ 23.1389 Position light distribution and intensities....
(c) Rear position light installation. A single rear position light may be installed in a position displaced laterally from the plane of symmetry of an airplane if
(1) The axis of the maximum cone of illumination is parallel to the flight path in level flight; and
(2) There is no obstruction aft of the light and between planes 70 degrees to the right and left of the axis of maximum illumination.
FAR 23.1391 gives intensity requirements for position lights as:
§ 23.1391 Minimum intensities in the horizontal plane of position lights.Each position light intensity must equal or exceed the applicable values in the following table:
| Quote: |
------------------------------------------------------------------------
Angle from right or
left of longitudinal Intensity
Dihedral angle (light
included) axis, measured
from (candles)
dead ahead
------------------------------------------------------------------------
L and R (red and green)............. 0° to
10°..... 40
10° to 20°.... 30
20° to
110°... 5
A (rear white)...................... 110° to
180°.. 20
------------------------------------------------------------------------
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It appears to me that 23.1389 would allow wing tip light pairs whose maximum intensity was straight aft with the +-70 deg visibility requirements being supplied by the lights on either side of the plane. However, the real question is, "At what distance behind the A/C must the rear position light be visible?" Are we talking flight distances, which should be at least a few hundred yards, or are we talking taxi distances which could be a few 10's of feet? I don't know the answer, but this question should be answered before one decides to leave off the tail light. I understand that GS may have documented arcs of visibility, but I believe that such arcs must be A/C dependent.
At 09:24 AM 1/13/2007 -0600, you wrote:
| Quote: | At the risk of sounding like a paid advocate (which I am not) the GS Air package has a programmable strobe driver which allows you to use a momentary switch on the stick or the panel to toggle through single, double, triple, or quadruple flash settings inflight as the need arises. The least power consumption is acheived on single flash. If you are not in a high traffic area why waste the scant alternator power we have available? Also GS Air's system uses only two LED position light units (don't burn out and draw very little current) at the wingtips and has documented satisfaction of the arcs of visibility for the DAR or FAA guys when you certify your plane. We don't actually need a third light on the rudder unless you just want one there.
Ed Moody II |
Terry Phillips
ttp44~at~rkymtn.net
Corvallis MT
Just starting a 601 kit
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_________________
Terry Phillips
Corvallis, MT
ttp44<at>rkymtn.net
Zenith 601XL/Jab 3300 slow build kit - Tail feathers done; working on the wings. |
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dredmoody(at)cox.net
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| Posted: Sat Jan 13, 2007 12:08 pm Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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If the plastic wingtips are mounted correctly the little flat area is pretty much alighned with the long axis of the airplane. A light which protrudes from that flat area will definitely be visible within 1200 feet of the front and rear of the plane as required by the FAA and described on the Whelen site. That ought to take care of it but redundancy is always an option to an experimental builder.
Ed
[quote] ---
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planecrazydld(at)yahoo.co
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| Posted: Sat Jan 13, 2007 12:13 pm Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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| Quote: | From the Whelen site: looks like the distance aft is 1200 feet? almost 1/4 mile?
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Terry Phillips <ttp44(at)rkymtn.net> wrote: | Quote: | I like the looks of the GS package myself, but I am concerned about visibility from the rear. I am attaching a photo I took at ZAC of the left wing time of the 601XL. The light is attached close to the front of the wing on the fiberglass wing tip. It appears likely that the view of a wing tip light from immediately behind the A/C would be obscured by the wing. Probably, if one got far enough behind, the light could be seen. The question is would it meet the requirements of FAR 23.1385-23.1397.
FAR 23.1389 states, in part:
§ 23.1389 Position light distribution and intensities....
(c) Rear position light installation. A single rear position light may be installed in a position displaced laterally from the plane of symmetry of an airplane if
(1) The axis of the maximum cone of illumination is parallel to the flight path in level flight; and
(2) There is no obstruction aft of the light and between planes 70 degrees to the right and left of the axis of maximum illumination.
FAR 23.1391 gives intensity requirements for position lights as:
§ 23.1391 Minimum intensities in the horizontal plane of position lights.Each position light intensity must equal or exceed the applicable values in the following table:
| Quote: | ------------------------------------------------------------------------
Angle from right or left of longitudinal Intensity Dihedral angle (light included) axis, measured from (candles) dead ahead
------------------------------------------------------------------------ L and R (red and green)............. 0° to 10°..... 40 10° to 20°.... 30 20° to 110°... 5 A (rear white)...................... 110° to 180°.. 20 ------------------------------------------------------------------------
|
It appears to me that 23.1389 would allow wing tip light pairs whose maximum intensity was straight aft with the +-70 deg visibility requirements being supplied by the lights on either side of the plane. However, the real question is, "At what distance behind the A/C must the rear position light be visible?" Are we talking flight distances, which should be at least a few hundred yards, or are we talking taxi distances which could be a few 10's of feet? I don't know the answer, but this question should be answered before one decides to leave off the tail light. I understand that GS may have documented arcs of visibility, but I believe that such arcs must be A/C dependent.
At 09:24 AM 1/13/2007 -0600, you wrote:
| Quote: | At the risk of sounding like a paid advocate (which I am not) the GS Air package has a programmable strobe driver which allows you to use a momentary switch on the stick or the panel to toggle through single, double, triple, or quadruple flash settings inflight as the need arises. The least power consumption is acheived on single flash. If you are not in a high traffic area why waste the scant alternator power we have available? Also GS Air's system uses only two LED position light units (don't burn out and draw very little current) at the wingtips and has documented satisfaction of the arcs of visibility for the DAR or FAA guys when you certify your plane. We don't actually need a third light on the rudder unless you just want one there.
Ed Moody II |
Terry Phillips
ttp44~at~rkymtn.net
Corvallis MT
Just starting a 601 kit
|
Dave Downey
Harleysville (SE) PA
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Terry Phillips
Joined: 11 Jan 2006
Posts: 346
Location: Corvallis, MT
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| Posted: Sat Jan 13, 2007 1:22 pm Post subject: Zenith-List Digest: 16 Msgs - 01/11/07 |
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If 1200 ft is good enough for Whelan, it is good enough for me. The GS package looks like the best way to go. Thank you for the input.
do not archive
Terry
At 02:07 PM 1/13/2007 -0600, you wrote:
| Quote: | If the plastic wingtips are mounted correctly the little flat area is pretty much alighned with the long axis of the airplane. A light which protrudes from that flat area will definitely be visible within 1200 feet of the front and rear of the plane as required by the FAA and described on the Whelen site. That ought to take care of it but redundancy is always an option to an experimental builder.
Ed |
Terry Phillips
ttp44(at)rkymtn.net
[quote][b]
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_________________
Terry Phillips
Corvallis, MT
ttp44<at>rkymtn.net
Zenith 601XL/Jab 3300 slow build kit - Tail feathers done; working on the wings. |
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