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Bluebird Dimensions and Schematics

Posted: Tue May 21, 2019 4:11 pm
by Lucas
Hi guys! we are a group of french college students. We wanted to study the bluebird K7 for a project. Do any of you have schematics of the machine, to use them for simulations? ( size, design...)
Thank you for your help!

Re: Bluebird & Other Scale Models

Posted: Thu Sep 26, 2019 7:09 pm
by Ernie Lazenby
1/8th Crusader model tested at speed. As I found in 2003 with a 1/12th scale model, a time when I developed my theory as to why Crusader crashed, I very recently repeated the crash with the 1/8th model. The forward planning shoe on the full size boat was not the problem it was the position/size/shape of the steering rudder that was at fault coupled with instability of the boat. Much more of this in Steve Holters book. He became very interested back in 2003 when I contacted him about my theory and he's developed it. The model needed a small rudder at the back to help low speed steering but leaves the water as the rear sponsons rise to full planning position. Much better now. Much detailed work and painting to do now I know it works and how to run it.
I have not fitted a gas turbine engine for reasons I will be explaining in a 5000 word article to be published soon in 'UK based Model Boats Magazine' Subject - Gas Turbine engines in model boats.
Its been an interesting project.

Re: Bluebird & Other Scale Models

Posted: Thu Sep 26, 2019 7:21 pm
by Ernie Lazenby
An interesting collection; Forum member Rich 1/8th Bluebird with gas turbine engine. Also his large model of Spirit of Australia fitted with a gas turbine. My 1/6th Bluebird, gas turbine powered (now owned by my son Ian) and my Grandsons 1/12th scale Bluebird which was the very first Radio control model of Touchwoods kit. (I built it back around 1996 just after the company started offering it) 1/8th scale Crusader, large brushless motor powered.(It may get a gas turbine before I fall off the perch)
DSCN6519.JPG

Re: Bluebird & Other Scale Models

Posted: Thu Sep 26, 2019 7:23 pm
by Ernie Lazenby
This shows the major difference in size between K7 and Crusader. Crusader model at 1/8th scale. K7 at 1/6th scale. Crusader was a big boat!
DSCN6509.JPG