Freezing at Wellesbourne

[Bovril]

Jet engined Micra?

yes and has another advantage : can be used to clear snow if reversed everyhere

[Jigsaw]

Jet engined Micra?

yes and has another advantage : can be used to clear snow if reversed everyhere

So can my wife after a curry mate (cheaper too)

[Avro683]

Great job in doing som preventative action to secure the vulcan. I would hate to see her go on her tail!

[Crew chief]

Great job in doing som preventative action to secure the vulcan. I would hate to see her go on her tail!

It was a bloody cold day but it had to be done and with all the snow we have had i'm glad we did.


cc.

[Avro683]

I might have asked this before but not sure..
What causes the Vulcans stbd engine(s) TO blow out all kinds of oily smoke on her highspeed runs? Vulcans smoke in general but this looks system related.. failed seals etc etc?

[Sooty655]

I might have asked this before but not sure..
What causes the Vulcans stbd engine(s) TO blow out all kinds of oily smoke on her highspeed runs? Vulcans smoke in general but this looks system related.. failed seals etc etc?

I'm assuming you mean XM655 rather than Vulcans in general. I'm not aware of any reason for starboard engines to be consistently more smoky than port.

655's starboard engines are smokier because they are older. Most of the smoke (actually vapourised oil) comes from the delivery casing breather and emerges from the vent under the middle engine door. If the engine were left running at high power it would rapidly dissipate as the oil which has collected in the engine internals burns off. However, because 655 only ever runs at high power for a few seconds, it always seems to be very smoky, although standing under the aircraft I can see that it is reducing even after eight or ten seconds.

This is very different to the brown smoke you see behind XH558, which is exhaust smoke resulting from inefficient combustion in the atomiser combustion system used in the Olympus engine. The brown smoke is mainly oxides of nitrogen.

Development Olympus 593s for Concorde had a similar atomiser combustion system, and development Concordes smoked. Production 593s had a vapouriser combustion system, and production Concordes didn't smoke.

[Avro683]

Thanks Sooty, I thought it might be age related. If it disperses that quickly then it can't be serious.

[Crew chief]

When it comes to the Olympus engine Sooty is the man to ask.


cc.

[Kermit]

Actually, Sooty seems to be the man to ask about most things Vulcan....