S&S Capabilities

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S&S Capabilities

Postby TillamookTurbine on Thu Apr 23, 2009 3:47 pm

Robin:

I have several programs that may use a J85/CJ610 for research. I have two -5's that were previously used in research and so are in various stages of (dis)-repair. My question to S&S is do you have the capability to spin balance the rotor after replacement of a couple of compressor blades?

One of the -5's has a couple of first stage blades with leading edge damage and a couple of first stage stator flaps have trailing edge damage. This happened during a vicious compressor stall during heavy water injection. As the blades unloaded they snapped forward and kissed the stator in the first stage. I may have a source for parts or may procure them through your sources. I would transport the engine to S&S with AB and controls removed so it's a CJ610 for export questions. This work may develop over the next year or so.

Thanks,
Terry
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Re: S&S Capabilities

Postby j79guy on Thu Apr 23, 2009 8:22 pm

Terry,

Yes, I do all my dynamic rotor balancing in-house. De/Re blading is routine, and I can source blades, or use yours. I've worked on various models of J85, including the -21 units with full A/B.
You can ship with or without A/B hardware, as the end-use is within The US, it does not fall within ITARS export permit requirements. (It is staying within Canada/US)
If you poke around my website, you can see pictures of the balancing equipment.

At least your engine was a GE and not a (Insert Brand X). "Tip Clang" has wiped out many an engine, but especially those with aluminum compressor blading/stators. I've seen J79s stall over and over again, without incurring compressor damage. J85s have fairly long aspect ratio compressor blades/stators that flex considerably. if you plan to do other compressor abuse trials, I can recommend other aero engines that perhaps would stand up better. (Allison T56 units are tough, compressor-wise.)

Robin.
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Re: S&S Capabilities

Postby TillamookTurbine on Fri Apr 24, 2009 3:32 pm

Yes, the J85 was little fragile but not half as bad as an F100-200. We completely burned the LPT out of one of those. That's why it's R&D.

If we get any of the programs to use the J85, I'll pull the AB and bring it to you. Not so much for ITAR but because I think I can fit a CJ610 in the back of my Beech Baron and fly to CYXJ in 3 hours instead of a 1000 mile drive.

Terry
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Re: S&S Capabilities

Postby j79guy on Fri Apr 24, 2009 8:23 pm

Terry,

I'll trade you. You fly your Beech Baron up here, and I'll let you drive my pickup truck back.

Robin Sipe.
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Re: S&S Capabilities

Postby TillamookTurbine on Sat Apr 25, 2009 10:13 pm

Remind of that the next time that I have to pull the lower cowls off to change the bottom plugs, and I may take you up on it.

Terry
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Re: S&S Capabilities

Postby j79guy on Mon Nov 30, 2009 7:16 pm

If anyone is interested, one of my techs posts some of our test runs on youtube.
Do a search for "S&S Turbines" and you will find them. Click on the posting person's name, "AgentJayZ" and you will see all his videos, including all test runs at the S&S cell.
There's even a couple shots with me in them, but mostly I'm in the booth, running the throttle.

Cheers.

Robin Sipe.
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