First PEGASUS EXPERIMENT

[robomont]

a delay would be fine.im beat.plus the third of every month is my grocery day.plus i got to buy a car next early week.i may just climb on top it and fly to georgia.lol

[Amaterasu]

That works for Me.  [smile]

[A51Watcher]

robo -

One suggestion I have - do you have a pillbox for viewing and a remote switch for ignition?


"Hope for the best, prepare for the worst"

[A51Watcher]

re: welds and leaks


In looking at your prototype unit pics, I was struck by the idea of how nice it would be to have a 3D printer create one with the alloys of your choice, thus a one piece unit with zero welds! 

Much like the construction method of the sports model.

(Another member mentioned this earlier.)


A prudent choice when constructing units to house a constant matter/anti- matter explosion for power production.


And here's a virtual bottle of champagne to christen the maiden voyage! 


All the best,

A51

[robomont]

a51.i love your idea but the main rule is it has to be made of iron.then the model could be perfected.i dont want to get my hopes up just yet until testing.
you guys dont need to be so paranoid over safety.it will be safe.otherwise a nuclear bunker wouldnt satify some folks.life is about risk.
lets say eventually we got an engine working and a craft built.would we deny testing because of rules and faa.i say we have to make our own decisisions.otherwise we are just texters.
plus we are flying on a shoe string budget.but i agree.a resonable amount of safety should be the norm.

[robomont]

just posting some pics to fill in the blanks

[robomont]

the paper holding the mercury is 1.3 grams for a total of 2.1 grams of mercury for a 3.1 liter volume.

[robomont]

i found this image at ovaltech.really cool website.

[PLAYSWITHMACHINES]

you guys dont need to be so paranoid over safety.it will be safe.otherwise a nuclear bunker wouldnt satify some folks.life is about risk.

One of our projects was tried before, apparently it vapourised a roomful of people & they simply filled in the bunker with concrete & forgot about it...so safety is a big issue, always.

lets say eventually we got an engine working and a craft built.would we deny testing because of rules and faa.i say we have to make our own decisisions.otherwise we are just texters.

Yes.

plus we are flying on a shoe string budget.but i agree.a resonable amount of safety should be the norm.

There you have it, it's quite simple, you do a 'risk assesment' involving a worst-case scenario, and work from there.

If pressure is a problem (which it is) then you need a blow-off valve that will blow (or even better, vent into a tank which is vented via a filter to the outside) to re-capture the mercury.

Such valves are not cheap, but can easily be made with a thick tube, a ball bearing & a spring which has a bolt behind it to adjust release pressure.

Vents through a hole in the side of the tube....pics will be posted if you need them.....

[robomont]

pwm.thankyou for the insight .brilliant idea for a vent but how can that vent also hold a vacuum.nobody yet has proved to me it will be under pressure.how does a mercury vapor bulb not explode?

on temporary shutdown due to county burn ban.so no final test until we get rain here in titus county texas.

[PLAYSWITHMACHINES]

Sure, of course it will hold a vacuum, you can even double seal it by using another ball bearing in the outside tube, as long as it blows before the tube does

Here's an industrial one, you can see the general layout;



ETA; You can test it with steam or compressed air and a high pressure guage like a hydraulic one, preferably with a long pipe filled with hydro fluid so you don't fry the guage, LOL

[robomont]

i did an early prelim test and the top wasnt even hot.the coils cool it very well.but still nobody can prove its under pressure.

[robomont]

http://www.lamptech.co.uk/Documents/M1%20Introduction.htm this link explains that a mercury lamp has to be under a vacuum of 25-50torr.which is approximately 25-50millimeters of mercury.which is the max of my vacuum pump.

[Fruitbat]

Apparently vaccuum pumps can be operated in series for more vaccum...

Surplus fridge pumps are reputed to be quite useful.

FB.

[robomont]

did not know that about series.i knew about the frig compressors.gold for the advice fruitbat.