Ye Olde Rocket Forum

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


Closed Thread
 
Thread Tools Search this Thread Display Modes
  #191  
Old 01-07-2006, 11:43 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
 
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,208
Exclamation Musical Instrument Digital Interface = "MIDI"

Quote:
Originally Posted by CPMcGraw
And yes, I understand the reference. My first computer was the Commodore 64, and that was often used as a MIDI controller.
Actually, the explanation was for those of us here who might not have ever heard of the "new-fangled" (post 1960s and -70s) meaning for "midi" ... I mean, "MIDI."

I also made up a preliminary decal for a "MIDI-Roc" design, which will probably be a Semroc LT-115/125 2.25X upscale of my BT-5 original BAR "Mini-Roc," which involved kitbashing an Estes "Nike Arrow." The decal has 3 MIDI port symbols which are labeled "IN," "OUT," and "THRU."


Cheers,

--Jay
Attached Thumbnails
Click image for larger version

Name:  MIDI-Roc_00_3fins_Logo_66.jpg
Views: 226
Size:  32.2 KB  

Last edited by CenturiGuy : 01-08-2006 at 01:18 AM.
Reply With Quote
  #192  
Old 01-18-2006, 06:05 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- Spear Tip

Another "Schoolyard Sounder"...

Uses 13mm A3-4T. Over 450' altitude. Less than 5 FPS deployment V...

Although the fin is shown in the RKT file as having a split (limitation of the program, grrrrr...) the actual fin shape has no split. You might find it necessary to construct the fin in multiple pieces to align the grain for better strength and dimensional stability.

See the attached fin patterns...

Enjoy!
Attached Thumbnails
Click image for larger version

Name:  Spear Tip.jpg
Views: 130
Size:  36.4 KB  Click image for larger version

Name:  Spear Tip Fin Pattern.jpg
Views: 115
Size:  153.3 KB  
Attached Files
File Type: rkt Spear Tip.rkt (32.3 KB, 106 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

Last edited by CPMcGraw : 01-18-2006 at 07:13 PM. Reason: Added a fin pattern image
Reply With Quote
  #193  
Old 01-24-2006, 03:04 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default New Plan -- Stiletto I

Borrowing a bit from the Centuri Stiletto, the BARCLONE version is based around a 12" ST-7 tube. Ours is a single-stage model, using the 13mm A3-4T to reach over 500'.

A simple build, with lots of performance for small-field flying.

Skill Level 1.

Enjoy!
Attached Thumbnails
Click image for larger version

Name:  Stiletto I.jpg
Views: 116
Size:  37.8 KB  
Attached Files
File Type: rkt Stiletto I.rkt (36.5 KB, 113 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #194  
Old 01-24-2006, 03:44 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default New Plan -- Stiletto II

An upscale of the Stiletto I, this version is also a single-stage model, but uses a full 18" ST-8 tube. Altitudes from 200' to over 1000' on 18mm motors.

Streamer recovery.

Skill Level 1.
Attached Thumbnails
Click image for larger version

Name:  Stiletto II.jpg
Views: 113
Size:  35.5 KB  
Attached Files
File Type: rkt Stiletto II.rkt (55.7 KB, 116 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #195  
Old 01-25-2006, 06:41 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default New Plan -- One Good Egg

This one started out as just a phrase, and sat on my computer as an empty folder for nearly two years before I decided to do something with it. I wanted to present an egglofter, but not just another "Scrambler" or "Omloid" style of design. Still, there are certain patterns such vehicle design tends to migrate toward, and this one is no exception. Basic large-diameter payload on a slender sustainer body, tricked out with an oversized horse of a motor...

The builder will need to mold the nose cone and transition in FG or VacForm plastic using a custom-turned form. The transition uses an ogive shape, just to make things different...

General specs:

Length: 36.7"
Payload diameter: 2.04" (ST-20 tubing)
Sustainer diameter: 1.34" (ST-125 tubing)
Motor: 29mm (ST-115 tubing)
Weight: 9.25 oz empty
Fin Span: 6.34"

F26FJ-9..........2130'...........22 FPS
F25-9............2458'...........13 FPS
G40W-10..........3280'............5 FPS
G64-10...........3730'...........28 FPS
Attached Thumbnails
Click image for larger version

Name:  One Good Egg.jpg
Views: 98
Size:  35.6 KB  
Attached Files
File Type: rkt One Good Egg.rkt (57.3 KB, 77 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #196  
Old 02-13-2006, 01:00 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default Spear Tip -- Update

I am pleased to announce that this model has been built and flown successfully on both A3-4T and A10-3T motors by Geoffrey Kerbel. His observed flight performance was very close to what RockSim predicted it should be, between 400' and 460' on both motors.

Attached is a photo of his model, with a true conical NC instead of the Ogive of the original design.
Attached Thumbnails
Click image for larger version

Name:  GK-Proven-1 [sm].JPG
Views: 116
Size:  316.7 KB  
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

Last edited by CPMcGraw : 02-13-2006 at 01:01 PM. Reason: Forgot the title...
Reply With Quote
  #197  
Old 02-13-2006, 01:40 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- Scythe

Uhmm huh, one of them thar Flyin' Slingblades O' Death...

The RKT file has a simplistic color scheme, but you can probably match the colors better if you visit a farm supply shop and look at the self-propelled hay harvesters...

RockSim says this model is very stable, with a margin of 16 using a B6-2, and 15 using the C6-3. Don't fly with any other motors, as this model only reaches 400' with the C6, and 130' with the B6.

Use two 12" parachutes for recovery.

Skill Level 2 (mostly for size)...
Attached Thumbnails
Click image for larger version

Name:  Scythe.jpg
Views: 110
Size:  32.4 KB  
Attached Files
File Type: rkt Scythe.rkt (50.8 KB, 80 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #198  
Old 02-13-2006, 02:35 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default New Plan -- Spear Tip II

A 1.4X upscale of the Spear Tip, suggested by Geoffrey Kerbel. This one uses the ST-10180 body tube and the BC-1052 NC.

Simulation shows the performance to match the smaller design, with all three power selections giving deployment Vs of below 10 FPS.

Length: 26.1:
Fin Span: 6.125"
Empty Weight: 1.53 oz

A8-3.....174'.....9 FPS
B4-4.....410'.....3 FPS
C6-5.....875'.....2 FPS
Attached Thumbnails
Click image for larger version

Name:  Spear Tip II.jpg
Views: 116
Size:  32.9 KB  
Attached Files
File Type: rkt Spear Tip II.rkt (51.5 KB, 111 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

Last edited by CPMcGraw : 02-13-2006 at 05:55 PM.
Reply With Quote
  #199  
Old 02-13-2006, 07:47 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plan -- Diaper Loader

I mentioned this one tongue-in-cheek awhile back, but realized it might just make a great model if the right image could be located. For the record, the image I chose was a toon-ish graphic located through Google. The artist is listed as Torben Soettrup...

Flight specs are nothing to sneeze at, either:

B4-4.....295'.....16 FPS
B6-4.....305'.....10 FPS
C6-5.....810'.....13 FPS
D3-5....1925'.....17 FPS

Stability with a C6 is 1.02 with a 3/8 oz weight in the tip of the NC. Do not use the A8-3, as the deployment V is too high, and the max altitude is only 100'.
Attached Thumbnails
Click image for larger version

Name:  Diaper Loader.jpg
Views: 125
Size:  44.4 KB  
Attached Files
File Type: rkt Diaper Loader.rkt (64.0 KB, 86 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #200  
Old 02-19-2006, 03:52 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Plans -- Aerobee 150 (Three Versions)

Last year I tossed up a semi-scale version of the MMI/EIRP semi-scale Aerobee-Hi. While this was a good-looking model in its own right, it was not entirely accurate in some of the dimensions, notably the nose cone.

Using scale data located on the internet, I have drawn up and simulated three different versions of this model, which was also known as the Aerobee 150. As with the earlier models, these represent only the upper stage, and not a full-house two-stage stack. I will try to come up with a correct booster for these variants at a later date. I am sticking with the ST-8 body tube, and I am resizing the fins to their correct scale width of 23.5" (1.4" model fin width). The original rocket was 15" in diameter.

The three versions presented here are:

Aerobee 150 RTV-N-8, 241.8" long (14.64" model length)
Aerobee 150 'Standard', 283.6" (17.17" model length)
Aerobee 150 RV-N-13b, 298.6" (18.08" model length)

One additional version, the RTV-A-1a/RTV-N-10a, was the same length as the RTV-N-8, but used a different sustainer motor with a higher initial impulse (4100 lbs for 32 seconds, versus 2600 lbs for 45 seconds).

Note that there were many variations of the basic Aerobee 150 design, with differing lengths of the conduit shrouds and even the shape of the fins. The fins drawn for these models represent the common rounded-tip fins seen in a number of images, and are now based on actual photographs; they have been widened to the correct span, and are as close to the correct LE sweep and chord length as the photograph allowed. One notable variation also seen was a sharp-cornered fin set.

These models represent the original series configuration. There was a later "A" series that used four sharp-cornered fins and which was mated to a more powerful NIKE booster.

You will note in the RKT file a designation for a SEMROC BC-853 nose cone. I'm wearing a big Cheshire Cat grin right now, because I asked Carl if this nose cone could be created, and he agreed to add it to the collection. This is a Tangent-Ogive shape, with a length of 5.3". It closely matches the actual nose cone length of 87.8". When you compare these models to the earlier BARCLONE version, you can see the improvement.

Enjoy!
Attached Thumbnails
Click image for larger version

Name:  Aerobee 150 Standard.jpg
Views: 116
Size:  36.3 KB  Click image for larger version

Name:  Aerobee 150 RV-N-13b.jpg
Views: 113
Size:  38.9 KB  Click image for larger version

Name:  Aerobee 150 RTV-N-8.jpg
Views: 134
Size:  39.1 KB  
Attached Files
File Type: rkt Aerobee 150 RV-N-13b.rkt (65.7 KB, 116 views)
File Type: rkt Aerobee 150 RTV-N-8.rkt (65.7 KB, 118 views)
File Type: rkt Aerobee 150 Standard.rkt (65.7 KB, 115 views)
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

Last edited by CPMcGraw : 02-19-2006 at 06:15 PM. Reason: Technical correction...
Reply With Quote
Closed Thread


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 10:34 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2021