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Post  Marleysky Sun Sep 30, 2018 4:25 pm

Blue Anodized Spinner 09ff4c10

We’re there any other applications of the Blue Anodized Spinner? Other than the KK Td049?    Copied from Martins web site:  

“Tee Dee .049 «Kustom Craft» (0.8 cm³)
Manufactured in 1985

This Tee Dee has been modified for free flight models. A chromed crankshaft reduces friction and a flooding line was added to the carburetor to stop the engine in fractions of a second. The backplate has a tap to pressurize the fuel tank, the head has been reworked and the enlarged venturi is fitted with a fine thread needle valve. The blue anodized spinner was added to make the engine with its internal differences stand out from the crowd. “.

Reason I’m asking is there is a local CL seller who has a bunch of product engine crankcases with cylinders and pistons, no NV’s, and just one of the parts motors has a blue spinner like the one in the picture above. It does make it stand out of the crowd. Just wondering if it’s worth an extra $5 or so?? Or did someone make a bunch of blue spinners as aftermarket accessories?
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Post  Oldenginerod Sun Sep 30, 2018 5:04 pm

The QRC reedie had a blue spinner I believe.
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Post  Cribbs74 Sun Sep 30, 2018 6:15 pm

QRC as mentioned above. Not worth the extra $5
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Post  Ken Cook Sun Sep 30, 2018 6:29 pm

All of the QRC spinners I have seen are a lot lighter blue than pictured.
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Post  getback Sun Sep 30, 2018 7:25 pm

A chromed crankshaft reduces friction and a flooding line was added to the carburetor to stop the engine in fractions of a second. wrote:
Flooding line ((( what the heck does that mean on a TD /? ))
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Post  Ken Cook Sun Sep 30, 2018 8:25 pm

During a free flight run, you don't want to pinch off the bladder as it will cause a lean run and pitch the nose up and stall. They use a timer and this allows fuel to be dumped into the venturi which kills the engine without leaning it out. it's also a very controlled way to shut off the engine especially on a new plane without having too chase it long distances. Keep in mind that the TD was specifically designed for the free flight crowd. Later once acceptance was gained it was used for a variety of uses.
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Post  Oldenginerod Mon Oct 01, 2018 5:04 am

Ken Cook wrote:           All of the QRC spinners I have seen are a lot lighter blue than pictured.

My guess is that the blue fades easily.  If the engine pictured is genuine, this one shows a lot darker.

Blue Anodized Spinner Cox-qr10
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Post  GallopingGhostler Mon Oct 01, 2018 6:47 am

Marleysky wrote:Were there any other applications of the Blue Anodized Spinner? Other than the KK Td049?

For Cox Engine of the Month Contest?  Very Happy

Marleysky wrote:Reason I’m asking is there is a local CL seller who has a bunch of product engine crankcases with cylinders and pistons, no NV’s, and just one of the parts motors has a blue spinner like the one in the picture above. It does make it stand out of the crowd. Just wondering if it’s worth an extra $5 or so?? Or did someone make a bunch of blue spinners as aftermarket accessories?

As others point out, I do recall the QRC had a blue nose spinner. Ex Model Engines has a blue anodized one for $5 US with 5-40 screw.

Ex: Cox .049 Spinner & Screw (Blue)

Blue Anodized Spinner 29170410

If the parts engine is $5 with the spinner, cost seems justified.
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Post  getback Mon Oct 01, 2018 8:12 am

Thanks Ken , I knew I had seen them for sale some where couldn't remember at the time , thanks George . Very Happy
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Post  Marleysky Mon Oct 01, 2018 9:54 am

Thanks guys! I appreciate the responses and info. It’s good to know I didn’t pass up a rare part. Knowing I can get one from Matt for about the same price eliminates any concern on my missing out on  a good part. Although, the engine collector/hoarder inside me was saying “Go ahead, buy the whole bunch, then take the cylinder/pistons and put ‘em all in a jar with your others and have one of those Guess how many there are in the Jar contests!”  Yeah, maybe later!    Thanks again!   Small Cox Logo
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