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Author Topic: Jet engined Bluebird K7  (Read 13419 times)

Leovilla

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Jet engined Bluebird K7
« on: January 10, 2009, 07:40:37 pm »

Go to you tube. Type in Bluebird K7 Lazenby..  Its running in the Lake district on 4th January 2009 at the exact time Donald Campbell set off on his fatefull run.(4.1.1967)

 I made the 1/6th scale model for my eldest son. Powered by a Wren Gas Turbine jet engine. Its exact scale down to the correct sixe bolt and rivet heads.

Ernie Lazenby
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Shipmate60

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Re: Jet engined Bluebird K7
« Reply #1 on: January 10, 2009, 07:48:18 pm »

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Garabaldy

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Re: Jet engined Bluebird K7
« Reply #2 on: January 10, 2009, 08:02:59 pm »

Thats amazing.  I would love to see pictures of the build if u have any?
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Leovilla

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Re: Jet engined Bluebird K7
« Reply #3 on: January 10, 2009, 08:10:00 pm »

Theres a lot of close up photos on the astec models gallery.
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The long Build

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Re: Jet engined Bluebird K7
« Reply #4 on: January 10, 2009, 08:15:50 pm »

Go to you tube. Type in Bluebird K7 Lazenby..  Its running in the Lake district on 4th January 2009 at the exact time Donald Campbell set off on his fatefull run.(4.1.1967)

 I made the 1/6th scale model for my eldest son. Powered by a Wren Gas Turbine jet engine. Its exact scale down to the correct sixe bolt and rivet heads.

Ernie Lazenby

Cool.. :-))
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dan

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Re: Jet engined Bluebird K7
« Reply #5 on: January 10, 2009, 08:25:27 pm »

superb video, looks great fun  :-)) are there any pictures?
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Shipmate60

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Re: Jet engined Bluebird K7
« Reply #6 on: January 10, 2009, 08:37:25 pm »

Ernie,
She looks great , but sounds superb.
I love the sound of that turbins spooling up and down!!

Bob
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Leovilla

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Re: Jet engined Bluebird K7
« Reply #7 on: January 10, 2009, 08:59:15 pm »

It is loud Bob. My wife says she can hear it in our Toiwn Centre which is a mile away from the house. The first time I bench tested it in the garden the neighbours came running out thinking an aircraft was crash landing.  It drinks fuel!!

Currently its back on my dinning room table for me to fit another failsafe system. (I built it on the table much to Elaines displeasure)

 When the real Bluebird has been rebuilt and ready to be launched at Coniston I will be running the model to keep the public entertained until the real one is ready to go.

 I have 3 K7's   1/12th 1/8th and 1/6th.   I love the sound and smell of the 1/6th!!

Ernie
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nhp651

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Re: Jet engined Bluebird K7
« Reply #8 on: January 10, 2009, 09:05:50 pm »

ernie, with a name like leovilla, i just knew you must have a great onterest in Bluebird and the late great Donald C, but to watch that clip of your own K7 was just awesome.
I have never ever seen such a wonderful and superbly built replica as that.
 thanks for sharing it with us. neil.
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craftysod

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Re: Jet engined Bluebird K7
« Reply #9 on: January 10, 2009, 09:20:12 pm »

Ernie,a lovely boat and the speed is awesome,if i may ask a personal question,are those jet engines expensive.
I saw a program on discovery a while back,of a guy who used 4 of them for a model aircraft
Mark
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Leovilla

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Re: Jet engined Bluebird K7
« Reply #10 on: January 10, 2009, 09:31:31 pm »

No problem ask away.   The engine with manual start system we have on ours runs out at around £1,400.   Its much less coplicated than the onboard auto start system and thus less prone to faults. Theres loads of extras of course as there always is and that pushes the total cost of the 'workings' well above the £1,600 mark then theres the 2 years work! Its a good job my son paid for the engine!

Ernie.
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dan

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Re: Jet engined Bluebird K7
« Reply #11 on: January 10, 2009, 09:34:32 pm »

hi ernie,
can i ask how the engin is held down and attatched to the boat?
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Leovilla

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Re: Jet engined Bluebird K7
« Reply #12 on: January 10, 2009, 09:43:53 pm »

I designed and made my own cradle that allows the angle of the jet thrust to be adjusted manually.  The cradle is glassed into the bottom of the hull. I will try and take a picture in the morning.

The boat weighs 14.5 lbs and the jet thrust is 14.5 lbs   a 1:1 power to weight ratio as per the full size K7 circa 1966/67.  As per the full size boat the model will only get up and plane using full power until shes up onto the planing shoes then off she goes and the throttle can be backed off to suit. After throttling down it takes 8 seconds for her to spool down and come off the plane, in that time shes travels a fair distance.
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nhp651

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Re: Jet engined Bluebird K7
« Reply #13 on: January 10, 2009, 09:49:29 pm »

it's comparable then with a steam plant. i installed twin engines boiler and pumps into a tug recentlyand those were 1700, so not as bad or costly as thought.superb replica. :-))
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craftysod

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Re: Jet engined Bluebird K7
« Reply #14 on: January 10, 2009, 09:56:43 pm »

Theres a thought for you Neil, a steam k7
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nhp651

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Re: Jet engined Bluebird K7
« Reply #15 on: January 10, 2009, 10:01:53 pm »

there was a steam K7 once, craftysod. it was a class of submarines.
they weren't very successful though, kept crashing and sinking.
i'd rather have a gas turbine Bluebird any day.
just wonderfull.
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Leovilla

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Re: Jet engined Bluebird K7
« Reply #16 on: January 10, 2009, 10:10:27 pm »

it's comparable then with a steam plant. i installed twin engines boiler and pumps into a tug recentlyand those were 1700, so not as bad or costly as thought.superb replica. :-))

The Wren is exceptional value for money and its made in the UK.  The AMT Olympus jet engine is around £4,000 for the basic engine and Jet Cat is about the same I think.

 I assembled the engine at the factory under supervision, spare parts are readily available as is technical advise. Wren staff are very helpfull and alawys pleased to take questions at any time.
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craftysod

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Re: Jet engined Bluebird K7
« Reply #17 on: January 10, 2009, 10:18:40 pm »

That must be a fantastic experience,assembling your very own jet engine
Mark
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colin-stevens

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Re: Jet engined Bluebird K7
« Reply #18 on: January 10, 2009, 10:21:21 pm »

can you put a link in please, cant find you on the astec site.
Ta
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craftysod

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Re: Jet engined Bluebird K7
« Reply #19 on: January 10, 2009, 10:31:39 pm »

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JayDee

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Re: Jet engined Bluebird K7
« Reply #20 on: January 10, 2009, 10:34:17 pm »



Hello,

The speed of that boat is amazing.
Is there a World Record Speed for a jet powered boat?.
I think Leovilla should have go at the Record.

John.  ok2  ok2  ok2
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colin-stevens

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Re: Jet engined Bluebird K7
« Reply #21 on: January 11, 2009, 11:03:21 am »

cheers mark. lovely model, would love to see it for real.
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Stavros

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Re: Jet engined Bluebird K7
« Reply #22 on: January 11, 2009, 12:06:54 pm »

Well come on are you going to bring it down to LLanberis in August lake is plenty big enough we ahev a rescue boat be a devil come on down



Stavros
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omra85

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Re: Jet engined Bluebird K7
« Reply #23 on: January 11, 2009, 02:02:38 pm »

Hey Dave
That will require ANOTHER upgrade of the rescue outboard  :o :o
What is it now - 4000hp   :} :} :}

Danny
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tigertiger

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Re: Jet engined Bluebird K7
« Reply #24 on: January 11, 2009, 02:09:03 pm »

Great model.
you should be on the telly.
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