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TOPIC: Airfield Lighting Archive - discussion thread

Airfield Lighting Archive - discussion thread 29 May 2011 17:26 #21

  • P Bellamy
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Carnaby;67961 wrote: Another object I'm seeking is the lens modification made to the majority of WWII contact lights. These lights were never bright enough and as an interim measure a simple prism device was designed by the RAE. Evidently it was dropped over the bulb in the lamp and focussed most of the light along the line of the runway, instead of 360 degrees. Tried first at Watchfield it was then applied to most C/L equipped airfields. I suspect the chances of finding one are very low, but there's always hope.


I wonder if the complete in-situ C/L fitting at Feltwell could possibly contain one of these prisms.
It's certainly the only intact fitting I can recall seeing a photo of.

All the best,
PB

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Paul Bellamy
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ARG Archive, Alconbury

Airfield Lighting Archive - discussion thread 14 Nov 2011 16:32 #22

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Regarding the entry for Shipdham in the audit: Shipdam: A2, Creq.

Looking at the lower right of this photo, it would appear the Contact Lighting was indeed eventually installed:

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I'm still working through the photo archive to confirm if HILV turned up later too, as some brief glimpses seem to indicate... ;)

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Airfield Lighting Archive - discussion thread 14 Nov 2011 16:45 #23

  • Carnaby
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Great - one of the threshold bar lights and transformer pit.

With that long peri track - it was probably taken here

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Plan A is always more effective when the problem you are working on understands that Plan B will involve the use of dynamite :twisted:.

Airfield Lighting Archive - discussion thread 14 Nov 2011 16:57 #24

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In that case it's probably the one visible in REF's photo. :)

REF wrote:

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Airfield Lighting Archive - discussion thread 13 Aug 2012 22:42 #25

  • WiganMick59
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For Graham.....................Tangemere.

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Thanks, Mick

PS I couldn't think of anywhere else to put these, so if they are in the wrong place, please delete after copying

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........"Watch out for that ditch mick"...........OOps:)

Airfield Lighting Archive - discussion thread 11 Oct 2013 21:32 #26

  • Ant1981
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Carnaby;68062 wrote: Running lamps in series at a constant current of 6.3 amps has enormous advantages in copper saving and uniformity in lamp brightness, but presents the obvious, but surmountable, problem of having the entire system dying if a single lamp fails. Swings and roundabouts.

Graham


The series circuit uses current transformers in the primary circuit, the lamps are on the secondary side, so if one lamp fails it does not affect the rest of the circuit.

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Military Airfield Lighting and Controls Technician. Keen photographer and quite partial to a V8 engine.

Airfield Lighting Archive - discussion thread 26 Jan 2015 15:49 #27

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First I want to apologize for entering a question in a thread that seems to be closed for some time.
But I was looking for information and pictures or drawing of a number of lamps dating from the mid-forties and related to the DREM airfield lighting. These types of lamps were installed on some airfields in Belgium after WW2.
The types mentioned in some documents are : runway lights C8 (non adjustable high intensity) and C10 and C11 (adjustable high intensity), C3 flush omnidirectional low intensity, type "G" low intensity and taxiway edge lights T1 and T2.
Is there any documentation available ?

Many thanks !

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Airfield Lighting Archive - discussion thread 26 Jan 2015 19:10 #28

  • Carnaby
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Hi Jonathan04 - there seems to be some interesting stuff in Belgium.

Re the above:

Runway lights C8 (non adjustable high intensity) Unaware of this. C10 Also unaware.

C3 flush omnidirectional low intensity
Common Contact fitting

Type "G" low intensity See HERE

See Post #2 for the last three

C11 (adjustable high intensity) Used on ORPs of post-WWII stations to mark the demarcation between runway edge and ORP beginning.

Taxiway edge lights T1 and T2. The T2 is basically a glass lensed high-visibility version of the wartime T1. Many of these were added to WWII stations in the late forties / early fifties as subsidiary runway edge lights as they were much brighter than the old WWII C6 flare-path fitting. I've also seen them used in modern petrol station forecourts etc.

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Plan A is always more effective when the problem you are working on understands that Plan B will involve the use of dynamite :twisted:.
Last Edit: by Carnaby. Reason: All links updated

Airfield Lighting Archive - discussion thread 26 Jan 2015 20:59 #29

  • Jonathan04
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Thank you very much Carnaby. Now I have some idea about the types mentioned in an old ATC course dated 1954. Maybe the C8 could be a mistype of C6, the well-known DREM fitting. Belgium bought some 6 sets of DREM II airfield lighting in 1947. Till recently it was a suggestion that they were never installed. But the old ATC course and copies of some pages of an old AIP (1954) show some indications that at least the airfield of Melsbroek (now Zaventem, Brussels) was equipped with DREM in the early years after the war.
Again, thank you very much for your help.

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