Author Topic: C-130, Pegasus vectored thrust engined + engines popped from the mold  (Read 1027 times)

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Offline zenrat

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Re: C-130, Pegasus vectored thrust engined
« Reply #15 on: March 13, 2019, 12:28:12 am »
I think I calculated you would need at least 16 of the radials...

Fred

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Offline PR19_Kit

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Re: C-130, Pegasus vectored thrust engined
« Reply #16 on: March 13, 2019, 01:50:16 am »

I think I calculated you would need at least 16 of the radials...


And that's wrong because..................?  ;D ;)
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Offline Old Wombat

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Re: C-130, Pegasus vectored thrust engined
« Reply #17 on: March 13, 2019, 01:52:12 am »

I think I calculated you would need at least 16 of the radials...


And that's wrong because..................?  ;D ;)

You'd need another 4, at least, to counter the extra weight of engines. ;) :wacko:
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Offline Captain Canada

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Re: C-130, Pegasus vectored thrust engined
« Reply #18 on: March 13, 2019, 06:33:25 am »
Great stuff. It's funny, after watching all of the VTOL action at Yuma I was just thinking about large VTOl a/c. This fits the bill ! Love that herc from the Perth show.
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Offline sandiego89

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Re: C-130, Pegasus vectored thrust engined
« Reply #19 on: March 16, 2019, 08:43:29 am »
Engine work has commenced. 

I will cast 4 resin vectored thrust Pegasus engines using the mid body of a Harrier.  Sadly a Harrier has been sacrificed- chopped of the wings, nose and tail. Repositioned the side intakes to form a single intake 

Here is the master primed. Decided to keep the heat shields, nacelle design pends...



Made a 2 part master mold.

Dave "Sandiego89"
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Offline sandiego89

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #20 on: March 16, 2019, 08:55:55 am »
Master engine next to a standard? KGR.3 Harrier








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Offline kitnut617

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #21 on: March 16, 2019, 12:14:19 pm »
Excellent

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Offline kitnut617

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Re: C-130, Pegasus vectored thrust engined
« Reply #22 on: March 16, 2019, 12:19:08 pm »
Engine work has commenced. 
Sadly a Harrier has been sacrificed- chopped of the wings, nose and tail.


Two Harriers got sacrificed for this project, I used some airliner engine fronts of a different scale which worked out to be the right diameter

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Offline jalles

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #23 on: March 16, 2019, 02:59:14 pm »
That's looking great! So you're casting resin using the plaster mold, I don't think I've ever seen that before. How well does it work? Is it better than a rubber mold?

Offline zenrat

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #24 on: March 16, 2019, 04:44:02 pm »
 :thumbsup:
Fred

Another ill conceived, lazily thought out, crudely executed and badly painted piece of half arsed what-if modelling muppetry from zenrat industries.

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Offline Old Wombat

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #25 on: March 17, 2019, 01:25:33 am »
Woh! Cool! :mellow: :thumbsup:
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Offline NARSES2

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #26 on: March 17, 2019, 04:39:41 am »
Very interesting  :thumbsup:

Seeing the plaster mould takes me back. We used to use plaster to make the moulds from which to cast white metal figures back in the day. You had to make sure the plaster had thoroughly dried out though or it got a tad exciting  :wacko: Then resin came along and I haven't seen plaster moulds since, certainly not seen resin being cast in plaster. Really interested to see how this turns out. Good luck  :thumbsup:
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Offline rickshaw

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #27 on: March 17, 2019, 04:59:02 am »
That's looking great! So you're casting resin using the plaster mold, I don't think I've ever seen that before. How well does it work? Is it better than a rubber mold?

I suspect the mould's life will be significantly shorter than a comparable rubber one, from my experience in using both.
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Offline sandiego89

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #28 on: March 17, 2019, 09:48:59 am »
That's looking great! So you're casting resin using the plaster mold, I don't think I've ever seen that before. How well does it work? Is it better than a rubber mold?

The mold is rubber. Specifically Alumilite RTV Silicone. Just looks like plaster due to the color.  Made it two part, as it would likely be impossible to get the shape out of a single piece mold. I have never made a plaster mold.  I have only made a few RTV molds before. 

« Last Edit: March 17, 2019, 09:52:54 am by sandiego89 »
Dave "Sandiego89"
Chesapeake, Virginia, USA

Offline jalles

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Re: C-130, Pegasus vectored thrust engined + engine work
« Reply #29 on: March 17, 2019, 10:50:55 am »
That's looking great! So you're casting resin using the plaster mold, I don't think I've ever seen that before. How well does it work? Is it better than a rubber mold?

The mold is rubber. Specifically Alumilite RTV Silicone. Just looks like plaster due to the color.  Made it two part, as it would likely be impossible to get the shape out of a single piece mold. I have never made a plaster mold.  I have only made a few RTV molds before. 



Ha, Ha!  I think my eyes saw "part master mold" and somehow I merged part + master to plaster  :banghead: