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About 303sqn

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  • Birthday 08/17/1954

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    Polish Air Force

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  1. That is correct. In most case it would be the mixture being too rich. These days with fuel injection and engine management systems you will get an amber light on your dash board.
  2. No it's not. There are three oxides of Lead, Lead(II) Oxide - colour red or yellow, Lead (IV) Oxide or Lead dioxide - colour black, Lead (II,IV) Oxide contains Pb(II) and Pb(IV) in the ratio 2:1, colour red. It's Tetra Ethyl Lead, commonly called tel. -ene means there is a C=C bond, there are no C=C bonds in tel. Tel burns to form lead. (CH3CH2)4Pb + 13 O2 → 8 CO2 + 10 H2O + Pb The lead can then be oxided to fom lead(II) oxide but any oxide formed will be quickly reduced by the hydrocarbons in the fuel to matallic lead. Reduction of metal oxides by the reducing agents hydrogen, carbon, and carbon monoxide is 'O' Level chemistry. The substance is Lead(II) Bromide. Too busy at the momrnt to explain. I'll be in the next few days to do so.
  3. 303sqn

    New Spitfire partwork

    If they they don't sign up enough punters they will cancel it. If people drop out to the point when it no longer profitable for them they will cancel it.
  4. 303sqn

    New Spitfire partwork

    It's being advertised on TV. 120 issues , I make that £1190.80.
  5. High Speed Silver was a colloquial name for a new finish for use on external metal surfaces of high speed aircraft. Post war it became apparent that the existing Aluminium finish was not resilient enough for use on high speed jets. One example cited was a Meteor that was subjected to bad weather on its delivery flight and on arrival needed repairs to its finish that required two skilled finishers three days to effect. As a result, in 1949, a new finish to specification DTD 772 was introduced. The scheme was a composite cellulose/synthetic which was classified as cellulose finish as its final finishing coats had a cellulose base. The system consisted of a pigmented synthetic resin primer for direct application to metal; a pigmented nitrocellulose or synthetic filler suitable for application over the primer; a glossy nitrocellulose or synthetic resin finish suitable for application over the primer by itself or both primer and filler; and two polishes, one an abrasive cutting compound, the other a liquid polish, both free from wax. The finish was supplied by Docker Brothers. The colour was identical to the earlier Aluminium finish but much more glossy.
  6. Post war international agreements required items of safety equipment to be coloured red.
  7. British colours. At the factory it was painted in the Temperate Land Scheme. It appears to have been assembled from components from different aircraft as it has the B pattern on the fuselage but A pattern on the wings. When repainted in the Day Fighter Scheme the patterns were adjusted to match.
  8. Air Enthusiast 95 - Spitfire Five to Nine.
  9. Yes. It was invented by Richard Drew at 3M in 1925.
  10. Cock o' the North was the nickname of Alexander Gordon, 4th Duke of Gordon who raised the 92nd Foot Regiment that became the Gordon Highlanders. It is also the tiltle of a bagpipe tune/military march that the Gordon Highlanders adopted as their regimental march. There is a song that uses the tune but it is not a polite one. Auntie Mary had a canary Up the leg of her drawers; It whistled for hours among the flowers And won the Victoria Cross Aunty Judy's budgy went broody August Bank Holiday It laid her an egg the size of her head And frightened the cockerells away There are much more obscene versions.
  11. It photographs were taken autumn 1944, probably September. The serial number is found in small letters on the fin. It was probably applied because the stripes applied for D-Day obscured the serial number on the fuselage. The rudder was replaced at some time with a 'pointy' one. Was the artwork there on D-Day?
  12. MH712 did not have stripes under the wings. That is the imagination of the people that draw profiles. At that time none of 302's Spitfires had stripes under the wings.
  13. Paul Lucas Summary The initial Spitfire deliveries to Malta were camouflaged on their upper surfaces in the Desert Scheme of Dark Earth and Midstone with either Sky Blue or Azure Blue under surfaces. By the end of March 1942 AHQ Malta had expressed a wish for the upper surfaces to be 'sea camouflaged' in a monotone finish, which the Air Ministry had both approved and understood to be Dark Mediterranean Blue by 8 April. For some unknown reason, the requirement for Spitfires destined for Malta to be 'sea camouflaged' with Dark Mediterranean Blue on their upper surfaces and perhaps Sky Blue on their under surfaces was not adequately communicated either to the ASUs preparing the Spitfires or the Maintenance Party assembled at Abbotsinch to accompany the aircraft. As a result, the Spitfires were all loaded aboard USS Wasp with a green and grey disruptive pattern on the upper surfaces consisting of either Extra Dark or Dark Sea Grey and Dark Slate Grey with Sky under surfaces. When S/Ldr Gracie complained that this camouflage scheme was incorrect, the limited supply of the correct colours, Dark Mediterranean Blue and Sky Blue, which had been supplied to Abbotsinch by the Air Ministry, was loaded aboard USS Wasp and as many of the Spitfires as possible were painted using these materials whilst at sea. Because there was insufficient material to repaint all of the Spitfires, something like two thirds of the Spitfires might have left the USS Wasp in the same disruptive sea camouflage colours and Sky under surfaces as they had been finished in when they were put aboard and consequently carried these colour schemes into combat.
  14. 303sqn

    exercise spartan

  15. The release agent is veg oil. The best subtance for removing oil and grease is good old fashioned washing soda. It can still be found in stores such as Wilkos. Add a spoonful to some luke warm water and submerge the part giving them a light scrubbing with a soft toothbrush. The washing soda will react with the oil to form a scum wish you rinse off with clean water. Be careful, wear gloves, it wil remove the natural oils in your skin and you will end up with washer woman's fingers.
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