The new D-CAT air trap
#51
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Or as an alternative having designer underwear that no one can see
Last edited by Birdman6310; 08-28-2016 at 08:46 AM.
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#56
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BIRDMAN your comments are distructive not constructive, why don't you find something better to do other than keep making comments,that have nothing to do with this thread. this is the very reason that some of our experts don't post here anymore, because of comments like yours that are nothing but bad mouthing people...............nuff said
Last edited by nobbybasher; 08-28-2016 at 11:45 AM. Reason: mistake
#57
BIRDMAN your comments are distructive not constructive, why don't you find something better to do other than keep making comments,that have nothing to do with this thread. this is the very reason that some of our experts don't post here anymore, because of comments like yours that are nothing but bad mouthing people...............nuff said
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BIRDMAN your comments are distructive not constructive, why don't you find something better to do other than keep making comments,that have nothing to do with this thread. this is the very reason that some of our experts don't post here anymore, because of comments like yours that are nothing but bad mouthing people...............nuff said
Marc thanked me for those comments if you read back and also I asked if it was necessary for the anodising work, Is that not a valid question
#60
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DCAT large back from anodisers, just waiting for the chromed barbs to complete.
It's going to be tight to get the DCAT medium and DCAT ultra done in time as Garry Barr my cnc guru is busting with work right now, hopefully he/we can get some done in time.
Will have stock at Jetpower of the following:
New DCAT large
CAT V2 large
CAT V2 medium
Maglok Probe
Maglok Vent
Maglok Stopper
Bullet 6
Bullet 8
A set of brand new Weatronic rx stuff in plastic case.
Assorted TP lipo packs from my own stock - most new and unused.
As said hope to have the DCAT medium and DCAT ultra there too but these might be a struggle.
I will also have my demo VIXEN sports jet with me for anyone who might like to buy it, currently turbine free but have a new Jet Italia Lion 220 turbine in a box ready to drop in if required. Will be in a crate to make transport easier.
marcs
It's going to be tight to get the DCAT medium and DCAT ultra done in time as Garry Barr my cnc guru is busting with work right now, hopefully he/we can get some done in time.
Will have stock at Jetpower of the following:
New DCAT large
CAT V2 large
CAT V2 medium
Maglok Probe
Maglok Vent
Maglok Stopper
Bullet 6
Bullet 8
A set of brand new Weatronic rx stuff in plastic case.
Assorted TP lipo packs from my own stock - most new and unused.
As said hope to have the DCAT medium and DCAT ultra there too but these might be a struggle.
I will also have my demo VIXEN sports jet with me for anyone who might like to buy it, currently turbine free but have a new Jet Italia Lion 220 turbine in a box ready to drop in if required. Will be in a crate to make transport easier.
marcs
#63
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Hi,
The end caps have slots cut in the inner tube support which is machined into the end caps so there are around 8 bleed slots at each end that will allow air which ends up unside the inner tube to escape back into tghe outer tank whenever the DCAT is not perfectly horizontal.
If you look closely at the first picture you can see the machined slots.
marcs
The end caps have slots cut in the inner tube support which is machined into the end caps so there are around 8 bleed slots at each end that will allow air which ends up unside the inner tube to escape back into tghe outer tank whenever the DCAT is not perfectly horizontal.
If you look closely at the first picture you can see the machined slots.
marcs
#65
Hi,
The end caps have slots cut in the inner tube support which is machined into the end caps so there are around 8 bleed slots at each end that will allow air which ends up unside the inner tube to escape back into tghe outer tank whenever the DCAT is not perfectly horizontal.
If you look closely at the first picture you can see the machined slots.
marcs
The end caps have slots cut in the inner tube support which is machined into the end caps so there are around 8 bleed slots at each end that will allow air which ends up unside the inner tube to escape back into tghe outer tank whenever the DCAT is not perfectly horizontal.
If you look closely at the first picture you can see the machined slots.
marcs
Usually air traps are effective down to about 50% or so of fuel content, while in this one it seems to me that as soon as the fuel level goes below the top of the inner tube (about 75%?), the risk of an air bubble getting stuck in the inner tube and potentially getting sucked into the engine becomes very relevant, is it so?
Thanks
#67
I never had problems with Festo fittings on any jet on either fuel or pneumatic systems, don't know what all that fuzz is about. Never tried CAT products, but i am happy with my Intairco super traps with festo fittings on my airworld F-100 with P200 SX and my large Carf Hawk with JB220.
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HI Intairco.
Good to see your post and appreciate you have been 'at it' for some years, I like your products and think they are well designed and I have respect for your experience and resulting market view.
I do have a 'personal' preference about the fittings used on my products (I did design them after all) but do appreciate customers also have their own preferences.
The original CAT and CAT V2 have barbs, the new D-CAT has chrome barbs supplied as standard but as the threaded holes are now M7 this allows the customer to use push fit connectors if he chooses.
Just for the record however, and for 'factual' reference the barbs supplied with the new D-CAT 140 and 240 are 4.7mm ID, the Tygon tube I use for sizing is from Saint Gobain and is 8mm OD with an ID almost bang on 4.7mm. A 4mm ID bore is 12.56mm2, a 4.7mm bore is 17.34mm2 - around 38% larger.
marcs
Good to see your post and appreciate you have been 'at it' for some years, I like your products and think they are well designed and I have respect for your experience and resulting market view.
I do have a 'personal' preference about the fittings used on my products (I did design them after all) but do appreciate customers also have their own preferences.
The original CAT and CAT V2 have barbs, the new D-CAT has chrome barbs supplied as standard but as the threaded holes are now M7 this allows the customer to use push fit connectors if he chooses.
Just for the record however, and for 'factual' reference the barbs supplied with the new D-CAT 140 and 240 are 4.7mm ID, the Tygon tube I use for sizing is from Saint Gobain and is 8mm OD with an ID almost bang on 4.7mm. A 4mm ID bore is 12.56mm2, a 4.7mm bore is 17.34mm2 - around 38% larger.
marcs
Last edited by marc s; 09-12-2016 at 08:34 AM.
#72
Thanks Peter @ Intairco for your insight on the great Festo vs Barb debate. The much maligned Festo fitting has had a bit of a hammering on a few RCU threads of late.
#73
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Peter no maybe, we must hook up, don't suppose I'm going to be heading down to your neck of the woods anytime soon......
The 6mm is used on the fill line where I've always fitted a smaller bore barb to restrict the fill speed and pressure associated with this process.
marcs
The 6mm is used on the fill line where I've always fitted a smaller bore barb to restrict the fill speed and pressure associated with this process.
marcs
#74
1) use as few as possible
2) only use polyurethane tubes
3) change them out, along with the fuel pickup lines, at least once every 2 years
4) do not make tight turns right out of the connector (rather, make a loop and keep the line straight out of it)
So far, following these few points kept me from having any flameout in the 6 years I've been operating turbine engines, and all my planes use 4 or 5 festos each, one or two always on the suction side.
#75
Here is the link:
http://www.rcuniverse.com/forum/rc-j...-fittings.html
Feel free to chime in and discuss the subject there.
http://www.rcuniverse.com/forum/rc-j...-fittings.html
Feel free to chime in and discuss the subject there.