Franzl,
When I saw the one individual state that the lantern was used during the night and during the day when there is fog, I had cross referenced the comments with an
article published in 1928.
There in the article, the neon lights were developed for foggy conditions because according to tests, the red neon light is seen from a further distance with the naked eye than with other lights.
And there was some confusion on this thread as to if this lantern was the APMs that were mention by the Jak-40 crew. According to the trancripts, the Jak-40 crew mentioned to the pilot that the APMs were 200 meters from runway.
044: As far as I remember, at 500 metres we were still above the clouds.
2P: Ah... At 500 metres [you were] above the clouds... Good, good, thanks.
044: Ah... One more thing... The APMs are about 200 metres from the edge of the runway.
2P: Thanks.
2P: The APMs are there.
2P: 200 metres from the edge of the runway.
Alice025 had stated that the APM's were mobile.
And as you pointed to the APM 90 which may or may not fit.
Also take note in the photo of the light (reflector, spot) setting on what seems to be the ground behind the two 3 prong antennas at the beacon.
