Member postings for FMES

Speaking of landfill, just after the war (and long before I was active on the planet) a large quantity of unserviceable aircraft instrument faces containg Tritium was buried alledgedly ten feet deep on the boundary of a large repair factory.

Many years later (1990s) a nearby Naval base that on occasion received  visits from vessels powered by nuclear reactors, was carrying out its regular detection tests and started to pick up tritium trace in the harbour.

The source was traced back up the reach some three miles to the buried dial faces.

A rather thorough clean up ensued.

Edited By *.* on 19/01/2018 17:24:43

Remembering back to my aircraft days the MoD was very cautious and careful with regard to the use and handling of BeCu. So much so those that came into contact with it had the details added to their personal records in case of future claims for industrial related illness.

Same for things like Cadmium and Magnesium Thorium.

Personally I wouldn't have anything to do with it unless you can be sure you can maintain an adequate barrier between it and all points of entry on yourself.

Lofty

Would the engineer have all available appendages or be digitally challenged?

Always on the lookout for a project Ian.

Can't be drilled, but can be spark eroded.

I believe there was some discussion on building such a machine in ME around 2011.

Lofty

That made me look twice as to how the V10 was running with the valve chest cover removed - good trick.

Lofty

realistic running shots?

All,

Received from the Model Engine Maker site, for your info:

Hello all,

Unless you live under a rock ld: (or switch off totally at anything more technical than wiring a plug for your lathe :ROFL, you will have no doubt heard :stickpoke: some news about a thing called "Meltdown" (which affects all Intel chips manufactured since either 1995 or 2005 or 2011 - depending on who you believe), and the unrelated but equally nasty "Spectre". These so-called "exploits" are causing much panic in the computer world, especially "Meltdown", as it turns out the only software fix available will slow your computer down by around 1/3rd. Which is a lot...

The first thing is, there's no need to worry, about the forum at least! This server is pretty well secured, and despite hundreds of thousands of attempts since it was started (about 1000 attacks per day, just on one entry point), no-one has yet got in. For "Meltdown" to work, the hacker has to run stuff on the actual machine he's hacking, and on a machine like this, that means someone gaining control of it.

Second - we are likely to experience some unscheduled downtime over the next few days & weeks, as our hosting company update their infrastructure. Any downtime should be short (5-mins or so, no more), but as with anything computery, things don't always come back from a reboot in good working order, so I'll try to keep a close eye on the forum for the next few days, at least until the virtual host tells me they're done with any rebooting. If I do get any advance notice of a reboot, I'll try to post it here, to keep you all up to date.

In the meantime, anyone with a CNC lathe is probably best sending it to me for evaluation, just to be on the safe side :Jester:

To unsubscribe from these announcements, login to the forum and uncheck "Receive forum announcements and important notifications by email." in your profile.

You can view the full announcement by following this link:

**LINK**

Regards,

The Model Engine Maker Team.

We used to demonstrate this to apprentices.

Take a piece of BMS 150mm x 40mm x 30mm and reduce the 30mm to 20mm using a 60mm face mill on a R8 Bridgeport.

Each apprentice would be given the opportunity to remove the whole 10mm in 1mm cuts or a 5+5 with a turnover.

The single sided cut always ended up with a .005" ish bow in the middle when checked on a surface table.

Just to demonstrate a point to them.

Lofty

Guaranteed that if you only mill off one side it will bend due to the stresses induced by the milling.

Do as Tony says but instead of taking off the full two mm, rotate after one mm and reduce the other side by the remainder.

Lofty

Welcome back Neil, and a very Happy New Year to you too.

Lofty

I wonder how much that Chinese vice would have cost if it had been treated to the same amount of measuring and grinding in as shown in that video prior to selling.

I use a Croz super precision - mainly because it fits my mill and was a very reasonable price.

Also answers another question as to why we are buying the US Army version of the F35 and not the Navy Version - no need for sophisticated take off and landing systems.

Oh, and the use of an Electro magnetic arrestor system when modern detections systems rely on Magnetic Anomaly Detection rather than just RADAR.

That would be MAD wouldn't it?

Looks ok to me https://www.youtube.com/watch?v=LPy7FuA0Z6A

Keep believing the fake news Dave

One big problem re the catapult, we don't use steam on board modern ships now.

The F35's also use the ramp for takeoff - same as the harrier on the CVS, very rarely would VTOL be used,

Lofty

The seal is a two stage graphite/ stellite ring composite assembly with and emergency inflatable nitrile tyre.

And those are the plummer blocks not the gearboxes.

Regards

Lofty

Isn't it amazing that the press manages to declare to the whole world our current defensive weakness.

Its not unusual for stern seals to leak during the first few sets of trials, and finding them is what shakedowns are for.

The '45's suffered from exactly the same problem, but that dwindled into insignificance with the 'other' problems that arose.

This leak on a ship of this size is about as significant as a nick in the wiper blade of a new car.

Lofty