Apologies if this is in the wrong section but I recently acquired a small sign (76 mm x 28 mm, photo attached) that reads:
“When bulb flashes switch on at frame 6 prepare to abandon aircraft”.
I was hoping someone might know what type of aircraft it was likely to be from and what the reference to frame 6 means?
Thanks in advance.
By: bazv - 26th July 2022 at 21:43
Spitfire Frames 1-4 were engine/engine cowling support structure.
Different manufacturers used slightly different designation techniques (as I posted above).
By: dhfan - 26th July 2022 at 00:41
Re frame numbers.
Isn’t the main bulkhead on a Spitfire Frame 5?
Apart from a dirty great Merlin, that’s almost at the front.
By: jamesinnewcastle - 25th July 2022 at 23:50
Hi
The rear turret on some Stirlings had a ‘flash bulb’ in the turret (like the ones on old cameras – a one shot pony). This was powered by it’s own battery and circuitry. Tail-end Charlie was far away from the rest of the crew and because the intercom might fail due to damage along the fuselage, the flash bulb was a quick instantaneous – abandon aircraft! It may not be relevant but it was the ‘flashes’ bit that caught my attention. Admittedly frame 6 is a long walk from the rear but possibly it was in the front turret?
James
By: Darknoiz - 25th July 2022 at 13:14
Thank you bazv, that’s interesting to know regarding Frames. Sadly there’s no information on the reverse.
By: bazv - 22nd July 2022 at 18:47
I forgot to ask – are there any Part Numbers or any other info on the back of the sign ??
By: bazv - 22nd July 2022 at 18:28
Fuselage Frames are usually numbered starting from near the front of the a/c – so Frame 6 is fairly far forward.
I say ‘near’ the front as Frame ‘zero’ or Frame 1 is sometimes at (say) the cockpit forward bulkhead and anything forward of Frame zero might be Frame A,B,C etc this will vary from manufacturer to manufacturer,and allows for nose modifications etc.
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July 22, 2022 at 10:38 am