Thanks for your reply!

I was initially thinking of the Tip strobes, which I believe we call anti
collision lights here.
The Piper Warriors (70's models) in the flying club I started in have these,
but our Arrow 68, only has the nav lights.

Do you have a web site for part suppliers that might have price lists?

Thanks again for your long and interesting post! I won't be installing
anything myself, as I am useless with a screwdriver.....(not the fluid
one....)
Frode

"Ray Andraka" skrev i melding
...
I'm not sure which lights you are referring to. Tip strobes are
anticollision
lights, and are required on newer aircraft. Wingtip landing lights can be
added
to cherokees, and those can be made to flash with a flasher unit such as
the
Avtek pulsar. Both the strobes and the wingtip landing lights, as well as
the
flasher are STC'd for PA-28's and PA32's. I installed both the strobes
and the
wingtip landing lights on my '65 Cherokee Six 6 or 7 years ago. If you
have the
fuel tanks out for service bulletin 1006 (spar corrosion inspection), it
is
fairly easy to add the lighting. If not, then I imagine it would be next
to
impossible to pull the wiring through the wing.

I put on Whelen comet flash tip strobes. Whelen holds an STC for them. I
think
there is also an STC for aeroflash brand strobes. When I put mine in, the
strobe kit was a few hundred $ (check aircraft spruce or chief aircraft
for
pricing). Strobe installation involves mounting a power pack under the
seat or
two power packs, one in each wingtip, pulling wires through the wings,
along the
left wall, and adding a switch to the panel. In my case, I replaced the
rotating beacon switch with a split rocker switch labelled for strobes and
rotating beacon. That was exactly the same size as the original switch. I
think
I got that from A/C Spruce. I got combined strobe & nav light assemblies
that
fit on in place of the old nav lights. I think there is also a conversion
kit
that replaces the metal cover on the nav light, but that set up involves
machining the backer plate. Pulling the wires is the hard part. I
enlarged the
tooling holes in the wing ribs, put grommets in those and pulled the wire
through them. All told, the strobes took 6-8 hours to install, not
counting the
time to remove and replace the fuel tanks. I also added the extra
inspection
cover between the two inboard ribs per SB988(?), which made pulling the
wires
through that part easier.

The wing tip landing lights are made by several vendors. My Cherokee Six
has
the fiberglass tip tanks, so my only option was a set of lights made by
skycraft
in new hampshire. Install for these lights involve cutting rectangular
holes in
the sheet metal leading edge of the wing and riveting in the lamp
assembly,
doublers etc. The skycraft kit was $695, which included the lamps, and
all the
lamp assembly parts, instructions, a special router bit for cutting the
wing,
the STC paperwork, wire and a switch. The STC has the wire routed in
alumimum
tubing clamped into the aerilon gap, so you don't have to have the wings
opened
up to add these. Since mine were already open, we pulled the wire
together with
the strobe wires through the grommets in the wing ribs. I think the
install
time was something like 15 hours for these. For cherokees without
fiberglass
tip tanks, there are replacement wing tips available with landing lights
in
them. Lopresti and AMR&D(?) both have them, and I think there is another
as
well. I don't have any experience with those, but I imagine the install
time is
considerably less since there is no sheet metal work. The kits cost about
3x
the skycraft kit, so the overall cost is probably about the same, plus
with the
new wing tips there is more to paint to finish the job. (the skycraft kit
only
has a thin metal frame showing on the outside of the wing, which you can
get
away with leaving unpainted. The inside of the cutout gets painted flat
black
to prevent distracting reflections). The wing mounted lights are a huge
plus on
the cherokee Six, because for that airplane, the original nose light
mostly just
lights up the pavement in front of the plane that is obscured by the long
nose.
Plus the wing tip lights are not subject to the vibration that the nose
light
is, so they last much longer. The skycraft lights are certified wth Q4509
halogen lights. I've got several hundred hours on those lamps, which are
on a
recognition flasher on every flight.



Frode Berg wrote:

Hi!

We are doing some major upgrade to our Piper Arrow 180hp.

We are putting in a factory overhauled engine, upgrading the interior to
leathcer (seats, panels, new carpeting), installing an S-TEC system 20
one
axis autopilot, as well as a new Bendix/King KI208 indicator.

This airplane did not come standard with the flashing white lights on
the
wingtips like the newer ones have.
I guess they are called "anti-collision" lights or something like this?

Is it possible to install these to this plane? Is there a mod for it?
Anyone
have any experience with installing them? What are the costs involved in
this?

Also, do they really make a big difference in visibility to other planes
up
there?
I somehow think I see planes easier that have them on, but I rarely get
the
chance to see two planes at the same time while flying, one with and one
without, so I can't really say...

Anyway, any opinions welcome, also ane web sites to piper parts and mods
would be appreciated!

Thanks,

Frode Berg
LN-LMR

--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-Benjamin Franklin, 1759