[Milsurplus] VHF Aircraft frequencies, FLIP, Enroute Supplement (long)
Rian Robison
[email protected]
Fri, 15 Feb 2002 21:26:01 -0800
----- Original Message -----
From: "aGEnuine ham" <[email protected]>
To: <[email protected]>
Sent: Friday, February 15, 2002 5:57 PM
Subject: [Milsurplus] VHF Aircraft frequencies, FLIP, Enroute Supplement
(long)
Hi,
Thanks for going to the trouble to put out this info.
Yes, I know what you are talking about. They contained approach plates for
all the airfields in the US. I still have mine from when I got out of USN
VAH-4 in 1961.
We used the ARC-1 transceiver. As an AT, I would acid-etch and polish
crystals for them as we moved around. Channel 10 was always left set up for
121.5. A few other channels (squadran freq, a couple of common tower freqs.,
etc.) were left set up while others were changed. Once we were back at your
assigned base in the US, I would only need to change maybe a channel or two
once and a while. This was done when we would go on adventures to other
areas.
We also had the ARC-27 and the ARC-38. The freq of the ARC-27 was set up
using a milti-diameter set of knobs (.1 step in the outside, 1 set the next
ring in, etc.). The ARC-27 automatically set up to 243 (rather than the
freq selected) when you place the control selector to GUARD.
The ARC-38 was set up for a couple HF freqs that were hardly ever changed
either. I can't remember what we called these freqs but they were a place
to go when you needed make contact over a good distance and couldn't raise
anybody elsewhere. They were not the usual commercial aircraft air to
ground freqs. as those were set up when we were where we might need to use
them. Of course the ARC-38 had a control box that permitted a manual freq
selection beside what was set up on the preset channels (freqs) drum in the
control box. I always ( and so did most others too) disliked the way you
had to look up the wanted freq in the booklet to get the number and letter
setting of the freq to set it. I will never understand why they didn't make
the manual freq selector switches read directly in freq. When I saw how the
freq is selected, I didn't feel this would have been too hard to build.
While in flight, if you were asked to switch to another freq that wasn't set
up on the auto channel selector drum, it was a true pain!! I had several 3"
by 5" cards made up of the more commonly used once and a while freqs (WWV,
CHU, etc.) and put in a map pocket in each of our aircraft. Setting up a
preset freq on the control box auto channel drum was alway fun too. There
was a channel number offset (the channel you were setting wasn't the one
presently selected) due to the drum had to rotate from where the sliding
pins could be accessed to another position were they could push on the
desired freq selection microswitches down inside the control box. When you
were in a hurry and/or had little sleep, you would get side-tracked and
change the wrong channel because you would either forget to allow for this
off-set of the drum or figure it wrong!! Another mistake would come when
your eyes wondered while trying to read the small print in the book You
could tell the age of the box (keeped in the control box) by the number of
hand drawn lines in it.
Later,
Rian
> Group:
>
> I was sorting out a little used file drawer today and ran across a 9 Dec.
> 1965 FLIP. Those of you who were military aviators* in the 60s will
> remember those, also known as Enroute Supplements (to the Sectional
> Charts). For the rest of you it is a paperback publication containing
> all the info on all the US airports (this issue) in a format which fits
> neatly into a flight suit leg pocket. On page 2 under the title
> channelization there is some interesting information related to the guard
> frequency thread running earlier.
>
> There is a table of UHF frequencies, and if anyone is interested, I will
> email or post them. The interesting information is in the VHF table.
> This is 1965, remember. Specific equipments listed for the Navy are:
> ARC-1 receivers, ARC-3, ARC-5 and SCR-522!
>
> The Air Force listing (remember they probably had full UHF) is:
> A. 123.6 FAA FSS
> B. 126.2 Control Towers
> C. 139.9 Approach, Pilot to Wx, VHF/DF practice, alt Tower, VHF/DF
> emergency and GCA search control on 4 channel receivers.
> D. 121.5 emergency, or,
> D. 134.1 GCA primary in 4 channel equipment
> E. tactical as required
> F. tactical as required
> G. GCA secondary
> H. 134.1 GCA primary.
> No guard channel listed. More below.
> Footnote: "Hq USAF has directed following utilization only for
> communications as listed with a view to eliminating congestion: Channel
> A: IFR flight and such other traffic as required by FAA; Channel B:
> Immediate aircraft movements within control zone of airport."
>
> So, they gave up an emergency channel in 4 channel equipment for GCA.
> Interesting.
>
> There are two columns under the Navy listing, one for ARC-1, the other
> for ARC-3, -5, and the SCR-522.
>
> The ARC-1 listing is numerical, and see above for repeat frequencies not
> explained.
> 1. 123.6
> 2. 142.74 Tower
> 3. missing from table???
> 4. & 5. Tac.
> 6. 143.64 GCA
> 7. 142.02 GCA
> 8. 134.1 GCA
> 9. 126.2 Towers
> Guard: 121.5
>
> ARC-3, -5, SCR-522 list is alpha:
> In the 4 channel equipment, 142.02 may be substituted in C and D
> according to operational requirements:
> A. 121.5
> B. 142.74 Tower
> C. 126.2 Tower
> D. 123.6 FAA FSS
> E. & F. tactical
> G. 142.02 GCA
> H. 134.1 GCA
>
> Footnote: Navy channel 2 (B) (142.74). The Navy VHF tower frequency,
> 142.74 shall be used only for aerodrome traffic control comms except when
> no other comms channels are available.
>
> Coast Guard: Coast Guard aircraft have the capability of transmitting
> and receiving on all frequencies between 118.0 and 135.95 mcs. (sic).
>
> Army: Army acft have the following frequency assignments: 126.3 tower,
> 121.5 emergency.
>
> * OK you military aviators: An Air Force Reserve pilot used to bring
> these FLIP books to me after training flights, but he retired a long time
> ago. The last time I tried to find one, I got nothing but blank stares.
> What is used now for that purpose? Palm Pilot software? Having
> nationwide radio and nav information in one easy to use book is sure
> desirable, and I would appreciate information on how to find a current
> equivalent publication.
>
> Hope some of this was of interest, and apologize for the bandwidth
> George W5VPQ
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