SCAT Duct

[refrivera]

Annual is coming up and I would like to replace the SCAT ducting. Does anyone know the size and length I would need to get?

1962 M20C

TIA!

Edited June 15, 2025 by refrivera
Added year/model

[PT20J]

I'd consider ordering SCEET tubing from @Gee Bee Aeroproducts. Guy makes reinforced finished ends and the extra layer of material inside embeds the wire spiral so that it doesn't come loose. You'll most likely never have to replace it again.

[refrivera]

@PT20J - Will they know what size and length I will need?

[PT20J]

14 minutes ago, refrivera said:

@PT20J - Will they know what size and length I will need?

No. I just measured mine. I only know the sizes for a M20J. Check with Guy, but his turnaround used to be really fast. 

You could also check with Frank Crawford at the factory. He might have a manufacturing drawing that has the lengths and diameters. 

[Matthew P]

it varies in length and diameter depending on where it is and what it does..measure it yourself, get extra, DO NOT get the BLACK SCAT

Edited June 17, 2025 by Matthew P

[PT20J]

1 hour ago, Matthew P said:

it varies in length and diameter depending on where it is and what it does..measure it yourself, get extra, DO NOT get the BLACK SCAT

By BLACK SCAT I assume you are referring to CAT.  SCAT is silicone and good for high temperatures. CAT is neoprene and usually used for air ducting inside the cabin.

[Matthew P]

8 hours ago, PT20J said:

By BLACK SCAT I assume you are referring to CAT.  SCAT is silicone and good for high temperatures. CAT is neoprene and usually used for air ducting inside the cabin.

That's correct but most  mis-call it scat, DONT buy any black tubing, replace it all with the orange, silicone tubing.

[Gee Bee Aeroproducts]

I have all models in stock

two versions for the J model 

m20c

M20f

Edited June 27, 2025 by Gee Bee Aeroproducts

[Lax291]

On 6/16/2025 at 9:32 PM, Matthew P said:

it varies in length and diameter depending on where it is and what it does..measure it yourself, get extra, DO NOT get the BLACK SCAT

Is this why you don't recommend the black CAT? Felt some cold air blowing under the panel, found this nice gash in the duct. 

Will be removing, measuring and reaching out to @Gee Bee Aeroproducts for some SCAT. 

[Gee Bee Aeroproducts]

Sceet 

black double wall with finished ends

our sceet is same flex as others scat single wall.

 

We also mfg custom molded elbows for Lockheed martin

 3/4 to 4" 

[Gee Bee Aeroproducts]

I listed a complete set with dimensions 

 

GB

[Scooter]

Just talked to Guy today. He had two sets of Sceet for the M20C. I purchased one of them. Comes as a set for everything you need under the cowling. Said from here on out was going to have to special order. Very easy to work with and very professional. Bought today and already shipped out. Thanks Guy.

[Justin Schmidt]

 

[Gee Bee Aeroproducts]

It's sceet double wall , not cheap scat

 

The key is finished ends 2" or 4" 

I designed 4" cuffs for the oblong ducts on the Cessna 303

 

GB

[Justin Schmidt]