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WARNING
These projects are inherently
dangerous, Please observe common
sense safety precautions when using high speed machinery,
explosive or volatile fuels and pressurised hot and cold gasses |
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Mark One TurboJet
Engine |
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This
whole thing started in 1998 after realising, just like a
lot of other DIY Turbine builders, that an automotive
turbocharger can easily be made to run as a gas turbine engine
with simply the |
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of a combustion chamber. So I got myself a relatively large
Holset turbo from my friends at AET Engineering and set about
building my very first engine. I learned a heck of a lot from
this build, which although was fairly crude, performed
admirably. She even ran well without any modifications from the
original plans which were conjoured up using information from
the web plus a little initiative. |
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| Mark Two TurboJet
Engine |
| Late in
2003 I was contacted by the makers of Scrapheap Challenge, who
wanted to do a show pitting two junkyard jet powered vehicles
against each other. I had to quickly come up with a new
and more powerful engine. A big Garrett TV81 turbocharger was
found on eBay and after a couple of months building and testing,
I came with with a simple design that could easily be replicated
in the ten hours allotted build time on the show. The Mark two
engine features a relatively short combustor and |
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flame tube made
from mild steel, and a huge 'dump' style afterburner for
augmented thrust. Starting is achieved using a petrol leaf
blower. |
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| Mark Two Engine
Powered Jetkart |
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The MK2 engine
performed so well on a heavy rolling chassis during it's TV
appearance, as soon as I got home work was started on building
my own jetkart. Again eBay came up |
| trumps for most of the
required bits and pieces, namely TKM Kart chassis plus lots of
other goodies to make the whole thing a little more refined. The
Jet Kart then went on to perform well at our DIY Turbine groups'
very first meeting at Bovingdon with consistent speeds up and
down the runway all day long - it was good for 70mph. Not bad when you
consider that the engine and systems virtually doubled the stock
weight of the kart. But it paved the way for regular
meetings. |
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| Mark Three Twin
Turbojet - (SOLD) |
| Now we
move things up a notch. The latest engine build was a big one!.
Two massive Garrett T18A turbo chargers in a twin configuration working
with a single combustor. I got this engine built to the point
where the sophisticated control systems and final fuel and oil
plumbing were to be implemented when things got tight and I had
to sell it. Damn shame, but the new owner has carried the torch
and breathed life into the machine!. Here's a link
to his blog. The potential thrust of this engine is in the
region of 200lbs Dry. and this is a conservative figure - |
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Unlike
those claims of DIY kits that sell on ebay with ludicrous power
figures, the MK3 Twin should be pushing 300lbs with a good
jetpipe and reheat!. |
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