Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Projects
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 02-04-2018, 01:04 AM
Initiator001's Avatar
Initiator001 Initiator001 is offline
Too Many Initiators is Never Enough
 
Join Date: Mar 2005
Location: San Diego, CA
Posts: 1,880
Default

Life gets in the way some times but I finished my final Centurion model.

This is the second Semroc Centurion kit I built. The one I built several years ago became a 'hard-luck' model as on every flight it suffered some kind of serious damage. On what would be it's last flight that Centurion had a side of the balsa nose cone cut off by a fin which sliced through it like a knife.

Now, where's that Centuri Centurion...
Attached Thumbnails
Click image for larger version

Name:  Semroc Centurion 001.jpg
Views: 31
Size:  75.9 KB  
__________________
Bob
S.A.M. # 0014
Reply With Quote
  #22  
Old 02-04-2018, 01:22 AM
Initiator001's Avatar
Initiator001 Initiator001 is offline
Too Many Initiators is Never Enough
 
Join Date: Mar 2005
Location: San Diego, CA
Posts: 1,880
Default

Here's a picture of my newly finished Semroc Centurion and an actual Centuri Centurion kit I had build a few weeks earlier.

A couple of comparison comments:

1) The fin material in the Semroc kit was 1/8th inch thick balsa wood while the Centuri kit was 1/16th inch thick.

2) The Centuri kit fins were diecut but the die must have been worn as the root edge on all the fins was poorly cut. The rest of each fin was pretty cleanly cut.

3) When the Senroc kit fin was overlaid on the Centuri kit fin I could find no difference in the size or shape.

4) The Centuri kit motor mount featured a coupler tube between the two centering rings. The Semroc kit only had the two paper centering rings. I added a couple tube to the Semroc motor mount to make it more durable.

5) The Centuri kit has the motor tube stick out past the end of the body tube. With the Semroc kit the end of the motor tube is flush with the end of the body tube.

6) The Centuri kit has a single two inch long launch lug while the Semroc kit has two one-inch launch lugs.

7) The Centuri parachute is larger and features eight shroud lines. The Semroc parachute is smaller, has six shroud lines but two parachutes are included in the kit.

The two models make a nice set, but, wait, there's more...
Attached Thumbnails
Click image for larger version

Name:  Centurions (L-R) Semroc & Centuri 001.jpg
Views: 48
Size:  113.6 KB  
__________________
Bob
S.A.M. # 0014
Reply With Quote
  #23  
Old 02-04-2018, 01:29 AM
Initiator001's Avatar
Initiator001 Initiator001 is offline
Too Many Initiators is Never Enough
 
Join Date: Mar 2005
Location: San Diego, CA
Posts: 1,880
Default

...And here it is.

My collection of built Centurion kits.

(L-R): Semroc Centurion F, Semroc Centurion, Centuri Centurion and Semroc Mini Centurion.

A nice looking family of models.
Attached Thumbnails
Click image for larger version

Name:  Centurions (L-R) Semroc Centurion F, Semroc Centurion, Centuri Centurion & Semroc Mini Centurion.jpg
Views: 67
Size:  176.3 KB  
__________________
Bob
S.A.M. # 0014
Reply With Quote
  #24  
Old 02-04-2018, 01:50 AM
Sheryl@Semroc Sheryl@Semroc is offline
Craftsman
 
Join Date: Mar 2005
Location: Knightdale, North Carolina
Posts: 178
Default

Bob, beautiful job as always.

Sheryl
Reply With Quote
  #25  
Old 02-04-2018, 11:49 AM
Initiator001's Avatar
Initiator001 Initiator001 is offline
Too Many Initiators is Never Enough
 
Join Date: Mar 2005
Location: San Diego, CA
Posts: 1,880
Default

Quote:
Originally Posted by Sheryl@Semroc
Bob, beautiful job as always.

Sheryl


Thanks, Sheryl.
__________________
Bob
S.A.M. # 0014
Reply With Quote
  #26  
Old 02-05-2018, 10:49 AM
Don Altschwager Don Altschwager is offline
Junior Rocketeer
 
Join Date: Mar 2005
Location: Hiawatha, IA
Posts: 22
Default

Wow, a quaternion of Centurions!
Reply With Quote
  #27  
Old 02-12-2018, 12:12 AM
Initiator001's Avatar
Initiator001 Initiator001 is offline
Too Many Initiators is Never Enough
 
Join Date: Mar 2005
Location: San Diego, CA
Posts: 1,880
Default Addendum

Around ten years ago Estes brought out a kit named the Cosmic Explorer.

It had a resemblance in some ways to the Centurion kit.

I built and flew one of these models.

In the interest of completeness I have attached a picture of the Cosmic Explorer with all my Centurion models.
Attached Thumbnails
Click image for larger version

Name:  Centurions Plus One 001.jpg
Views: 59
Size:  187.3 KB  
__________________
Bob
S.A.M. # 0014
Reply With Quote
  #28  
Old 03-14-2018, 01:15 PM
Blastfromthepast Blastfromthepast is offline
'nother Old Fart BAR....
 
Join Date: Dec 2011
Location: Castle Rock, Colorado
Posts: 139
Default

I would build the Centurion first...then follow up with the Centurion!
__________________
Just remember...G. Harry Stine's first ever model rocket was an RTF !

Check out my wonderful model rocketry blog here:
https://castlerocketeer.blogspot.com/
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 06:54 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2018