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  #31  
Old 11-14-2017, 12:45 AM
Faithwalker Faithwalker is offline
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Quote:
Originally Posted by blackshire
Your second link won't open, but yes, that old metal-cabinet Centuri Lectra Line controller is durable and very easy to replicate. Even the plastic Lectra-Line 1 and 2 could be replicated by 3D printing or resin casting, using RTV rubber molds. I like the original metal-cabinet one just fine, though (but if someone made the later ones, I wouldn't turn my muzzle up at them). ALSO, the flat angled blast deflector on the simpler, "block o' wood" launch pad (on the same catalog page as the original Lectra Line launch controller, in your first link above) would be *very* easy to make--just cut out a properly-sized rectangular piece of sheet steel, then bend it in the correct places and drill (or maybe punch) two holes to fit over the launch rod!


Sorry for the broken link. (*Note: EFC-66 Ignition Control Panel link in post #26 above has been corrected.) Here's a different link for the EFC-66 Ignition Control Panel: https://www.ninfinger.org/rockets/c...68/68cen66.html

Both links should work now.

Kind regards,
Jeff Jenkins
aka: Faithwalker
NAR #46879

Last edited by Faithwalker : 11-14-2017 at 01:33 AM.
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  #32  
Old 11-14-2017, 07:33 PM
Faithwalker Faithwalker is offline
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Quote:
Originally Posted by Faithwalker
Of course, some additional GSE choices, if you want to go even more retro, might be the EFC-44 Lectra Line controller (https://www.ninfinger.org/rockets/c...i65/65cen6.html) or the EFC-66 Ignition Control Panel controller (https://www.ninfinger.org/rockets/c...65/65cen54.html). *Updated the broken EFC-66 link, so it should work now.

Kind regards,
Jeff Jenkins
aka: Faithwalker
NAR #46879


Anybody happen to have copies of the Operating Instructions for any one of the following:
the Centuri EFC-44 Lectra Line Controller, the EFC-66 Ignition Control Panel Controller, and/or the EFC-88 Heavy Duty Ignition Control Unit? If so, could you post on YORF please to document them? Thanks!

Kind regards,
Jeff Jenkins
aka: Faithwalker
NAR #46879
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  #33  
Old 11-15-2017, 04:41 AM
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blackshire blackshire is offline
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Quote:
Originally Posted by Faithwalker
Sorry for the broken link. (*Note: EFC-66 Ignition Control Panel link in post #26 above has been corrected.) Here's a different link for the EFC-66 Ignition Control Panel: https://www.ninfinger.org/rockets/c...68/68cen66.html

Both links should work now.

Kind regards,
Jeff Jenkins
aka: Faithwalker
NAR #46879
Thank you--that one works! It also jogged my memory regarding a discrepancy with the Semroc reproduction Astrobee 350's fins, which are obviously under-sized as compared to the original Centuri kit's fins.
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  #34  
Old 12-09-2017, 03:36 PM
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Quote:
Originally Posted by Faithwalker
Blackshire,
Thanks for the compliment earlier! Faith in our Creator is vitally important to me. I believe it is only because of Him that we can live and move and have our being!

BTW, Rocketguy101 and I are collaborating together on the 3D model of the ID-65 Blast Deflector for the Centuri Power Tower. Hopefully, we'll have some good drawings for it soon!

Kind regards,
Jeff Jenkins
aka: Faithwalker
NAR #46879


see post #30 in this thread
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  #35  
Old 12-17-2017, 06:26 PM
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I don't know for sure--due to its resolution--if this is a different type of flat Centuri blast deflector, or a variation of a 1960s-type one instead, but on page 53 of their 1972 catalog, under the "Launcher Accessories" heading (see: http://www.ninfinger.org/rockets/no...a/72cen052.html ), there is featured a flat, angled blast deflector that appears to be designed to slide over the cross-member of a sawhorse (for a multi-pad rack launcher). I can't see it quite clearly enough at that resolution, but it looks like *this* http://www.ninfinger.org/rockets/ca...68/68cen26.html "Launcher Assembly" pad's blast deflector, in the 1968 Centuri catalog. They appear to differ in that the "sawhorse" one looks like it has upward-angled "wings," while the 1960s one is a flat rectangle of sheet steel, bent "forward to back" in two places.
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  #36  
Old 12-17-2017, 07:26 PM
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What you picture in the two ninfinger links are definitely different blast deflectors.
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  #37  
Old 12-17-2017, 08:29 PM
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Quote:
Originally Posted by ghrocketman
What you picture in the two ninfinger links are definitely different blast deflectors.
Thank you. The drawing in the 1972 catalog definitely gave that impression (of being different from the 1968 one), while the Power Tower one appears different from both. The 1968 one (on the "block of wood" launcher) looks like the easiest one to replicate.
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  #38  
Old 12-18-2017, 12:15 AM
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Glad I was able to help.
I also agree that the "Power Tower" pad one is also different.
When the Power Tower was produced, both Centuri and Estes were owned by Damon.
The Power Tower was a clone of the Estes Porta Pad.
The only thing that differentiated the two was color and blast deflector shape.
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If you are NOT FLYING LOW in the left lane, you need to GET THE #$&@ OUT of it !

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  #39  
Old 12-18-2017, 11:19 PM
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Quote:
Originally Posted by ghrocketman
Glad I was able to help.
I also agree that the "Power Tower" pad one is also different.
When the Power Tower was produced, both Centuri and Estes were owned by Damon.
The Power Tower was a clone of the Estes Porta Pad.
The only thing that differentiated the two was color and blast deflector shape.
Another kid at school in Georgia who was into model rocketry had one; I definitely preferred their angled deflector to Estes' disc deflector, which kicked back finish-marring sparks unless the rockets were elevated a little way above it with a clothespin or a spent motor.
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http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
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  #40  
Old 12-19-2017, 07:18 AM
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Quote:
Originally Posted by ghrocketman
The Power Tower was a clone of the Estes Porta Pad.

The Power Tower was not just a clone. They were made in the same mold. Mine have identical mold lines and marks.
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