Has it been taken over by Ryanair?:D

ROTFL!! 😀

wow, there’s even an old post of mine with the old account! That’s some grave digging! 🙂

It’s good to see that I haven’t changed my mind about it: it was just a legalised war crime, period.

To me, cheering pictures of the atomic mushroom clouds is like cheering pictures of concentration camps: they’re both a mass murder of innocent people.

SF260 is modern stuff, we’re talking about 20s design here 😉
the oil consumption is quite embarassing on these old engines: i remember costantly checking the oil level and filling the oil tank was quite common routine.

All

I don’t think its an oil cooler, more likely a breather oil trap. the drain from the device returns to the oil return lines as can be seen from the image. As AlexT says, the norm is for the oil tank to provide cooling of the oil, it has a good air flow past it.

I have heard of similar devices being fitted to the Gipsy Majors in Tiger Moths, just haven’t come across one.

Can someone tell me where the pipe from the crankcase vent on the top rear of the Gipsy run, in an Gipsy Major powered Auster J5

cheers

uhm, I thought so as well, but you don’t use again the oil that gets in the breather trap usually, do you? It seems like there’s a vent on top of the tank too. Once again, it would be easier to understand what it is if there were other pictures available. I had a look at my Gipsy Major pics and couldnt find anything similar. I fiddled with three different Tiger Moths for several years and none of them had this feature installed.

As per the oil coolers, I assume that by the time the Gipsy was installed on relatively advanced planes, the oil cooler became a common feature, maybe a bit redundant, but there if necessary. I don’t know much about Austers, but I assume that the oil tank position is not hidden in the fuselage, or is it?

I don’t think you are far off, I forgot to mention in my previous post that the oil cooler seems to be missing.

well, in a dry sump engine (like the Gipsy Major) usually the oil tank itself works as a cooler, as the temperatures reached are not as high as in the wet sump system. This kind of modification would probably be suitable for operation in warmer countries, where oil could get a bit hotter than usual.

Another common modification done in warmer countries is the deactivation of the carb ducts heating done through the exhaust tapping, because in very hot days it might cause precombustion in the carb ducts themselves.

the overflow oil is directed in the cylindrical tank, where it cools down and gets back to the the normal circuit; basically a rough oil cooler, as simple as that 🙂

This is my guess of course, it would really help to see where the two ends are connected.

possibly some were hoping to keep it quiet

I don’t actually see the point of this thread, apart for probably raising the profits of some eBayers, and spoiling the possibility to be still able nowadays to bag a good deal, even on eBay..