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  #41  
Old 09-29-2005, 09:49 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by barone
Craig,

Just uploaded the plans I had to the YORP FTP. Don't have the decals (except what's on the rocket and I'm not really sure how well those would scan ).

Don
NAR 53455


Great! That's one more plan locked down. Someone else will provide the decal image eventually.

Scott and I maintain two Kit Lists that track which kits are missing. I hope one day to see our lists with absolutely NO red entries for actual kits.
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  #42  
Old 09-29-2005, 09:58 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by rraeford
Uhm, I guess I should have been more specific. I was asking about the Enerjet Athena.

rraeford


Generally, the same procedure. You have to have a parts list showing the dimensions of the parts Centuri used, and you start by eliminating from the overall length those parts you can identify. With Estes parts, it's the 741 Custom Parts Catalog that we use for many items, but with Centuri we have to fall back on catalog parts pages to match up with. Not always easy with Centuri, because their parts changed dimensions over their lifetimes a bit more than did Estes parts.

Fortunately for us today, we have the SEMROC parts which match most (if not all) of the original Centuri balsa parts, and Moldin' Oldies for many of the plastic parts; and for the Estes balsa parts, we have BMS.
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  #43  
Old 09-30-2005, 08:54 AM
rraeford rraeford is offline
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Quote:
I can confirm the Enerjet Athena / Centuri Centurion use the same fins.
I just completed my Athena Clone (complete with body wraps !) and the correct fin for both is exactly the same. Some of the parts on the Athena are shared by the Orion also. The pods (tubes and cones) for the Athena and the Orion are the same; the Orion uses 3 pods, the Athena uses four pods.

Okay, now I'm going to be REALLY specific.

ghrocketman,

How did you determine the body tube lengths and all of the Enerjet Athena? Are there plans around? Can you tell me where to find them or can you send them to me?

rraeford

P.S. Sorry Craig, I'm a bit new to posting here and thought my reply would queue up right after the comments about the Athena. Thanks for the info though.
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  #44  
Old 09-30-2005, 10:45 AM
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ghrocketman ghrocketman is offline
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rraeford:
I determined the tube-lengths as shown in the 1972 Enerjet Catalog. They are right there, I'll send you the link to the page on Ninfinger !
The Athena is on the right page with all the dimensions on a drawing.
I bought all my parts except the nose cone from Semroc (including laser-cut Centurion fins).
I got the cone from Moldin' Oldies (NC231); I see Carl at Semroc has a parts number for this one in Balsa on his site, but it is not available yet; the cone is tricky to find on the Semroc site; you have to got to the "Vote for Classics" (upper right box on the home page) then click on the Athena button on the left when the kit shows up at the top of the voting list; then a parts list shows up !

Enerjet Catalog page:
http://www.ninfinger.org/~sven/rock...2/72ejet12.html



Semroc Athena parts list page:
http://www.semroc.com/Store/scripts...arts.asp?ID=561

note: Carl's chute size on his parts list is wrong; the original Athena used a 24" Nylon/Silk chute NOT an 18"; this is shown in the Enerjet 1972 catalog; my clone uses a 24" neon-yellow chute.
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Last edited by ghrocketman : 09-30-2005 at 10:54 AM.
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  #45  
Old 09-30-2005, 11:41 AM
rraeford rraeford is offline
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Thanks. As far as the tube lengths are concerned...d'oh! They've been there the whole time right in fromt of me! As Bugs Bunny would say, “What a maroon!”

As to the parts list, Carl must be adding these in from time to time because I looked there the other day and didn't see it.

Of course, having not seen the dimensions of the Athena in the Enerjet catalog all thin time might make one suspicious of my powers of observation.

rraeford
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  #46  
Old 10-01-2005, 08:11 PM
Arley Davis Arley Davis is offline
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That same Diagram for the Athena is on JimZ’s web site and it can be printed of his site.

http://www.dars.org/jimz/enerjet/ke-5e.tif
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  #47  
Old 10-03-2005, 07:09 PM
johnnwwa johnnwwa is offline
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Quote:
Originally Posted by CPMcGraw
I wonder how I ever missed THAT model?

Easy enough to build, though...

BT-50, full 18"...
PNC-50Y...
6 - BT-50J tube fins...
BT-20J motor tube...
2 - CR-2050 rings...
1 CR-520 ring...
1 EH-2 engine hook...
12" parachute...
Really guessing here -- 3/32" balsa sheet for the fins, 1/2" wide, two 90-degree right-angles for the tip, 45-degree cut on the root, leading edge looks to be about 1.75"...

Add a 24" length of Kevlar and 24"-36" of elastic shock chord...

Decal looks simple enough to do on clear paper...

I might have to add one of these to the collection...

"Really Gussing Here" Your right ... good guess
Fins are 1/16" balsa
Root edge 1"
Trailing edge 15/16"
90 degree cut 3/4"
Leading edge 1 9/16"
Close but no cigar .
I plan to send Plans ,fins decals etc. to Bill this week if I get time.

BAR
JOhn
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