that website has been hacked a long time - I don't even know, if it's been hacked, un-hacked and hacked again.
I even tried starbeegyros on Facebook - with a strange result. I'll have to call him/them.
Thanks to Scott Essex I am now in contact with Dana Linn.
They had problems with their DSL (internet line) and their mail program.
I contacted Dana Linn through his principal company and very quickly got an answer.
I was worried, but all is now well.
You could give some consideration to using a seat tank. From the weight standpoint, I found that there was very little weight difference between seat, plus seat supports, plus fuel tank, plus fuel tank mount, compared to a seat tank and support. It does move the cg forward some though.
There are many Gyrobee types flying with CalumetAir seat tanks. 'Bee mounting instructions, provided by a customer, are available on my website www.calumetair.com The mounting instructions on the site advocate bending the U tube ends. I suggest using U brackets to mount the tube to the airframe (like most contemporary mfgs do)
Take a look at Jake's gyro. It's a very refined lightweight gyro, based on his many years of experience.
I'm building a standard Bee myself. Afterwards I may experiment… When you have a lathe and a tool mill, there are possibilities.
After all, the Gyrobee is very basic, and the standard parts used back then are not available anymore.
From what I've read, it's not such a good idea using any kind of aeromotive engine in a gyro. Especially in a lightweight machine.
A gyro engine is hard pressed and must be able to run balls-to-the-walls all the time. A car or MC engine is not built for that.
Car and MC engines are heavier. Plus, an MC engine usually comes with a gearbox attached. They both have to have a reduction gear.
You would in reality be a test pilot with a questionable power system...
The usual engine for a Gyrobee-ish machine would be a Rotax 503 or a 582 (IMHO). There are others, but they aren't that common.
I happen to have an old, never used 503 SCSI. Single ignition and single carburetor. I have a set of used carbs if needed.
But now I'm cheating - I just bought an MTO Sport. I needed that to have something to be schooled in. I might sell my Gyrobee stuff.
Or not - I don't know at the moment. It would be fun to finally build my "Time Machine" Bee... I have just about all needed hardware.
Thanks for the info Erik. I have a degree in Machining and own a mill and lathe. I am going draft the gyro in Solidworks complete, then set-up my tool paths in Mastercam. I would really like to use a blue head 582 Rotax, but they are incredible expensive. I have had a few Quicksilver ultralights and had a buddy that put a Geo Metro engine on his and it worked out great. I would really like to find a 582 that needs rebuilt. I'm just getting started, so nothing is written in stone yet.