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
  #11  
Old 12-14-2019, 08:13 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

Quote:
Originally Posted by PaulK
I used the stock chute, just cut out a modest spill hole, and also used the rubber shock cord w/ tri-fold mount. Usually, I'll upgrade estes kits with kevlar to the MMT, and a Top Flight nylon chute, but wanted to keep this one a pure stock $10 rocket. Flying on an $8 motor


Great to know, thanks. I added 3 cents of elastic
Reply With Quote
  #12  
Old 12-14-2019, 08:22 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

Quote:
Originally Posted by TigerHawk
I am kit bashing a Red Flare into a Colossus


Great idea, I built a Collossus in the 80s, love it. Back then I filled in the fin joints and tube joint gaps, so you can't tell it's snap together. I would let everything show if I had it to do over. How will you do the decals?
Reply With Quote
  #13  
Old 12-15-2019, 04:42 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

Quote:
Originally Posted by TigerHawk
I have not decided yet if I will get/use the decals from tango papa or stickershock. I think the ones from tango papa are waterslide and the ones from stickershock are vinyl?
I think that’s right. Water slides look great but vinyl is easy to apply.
Reply With Quote
  #14  
Old 12-17-2019, 09:51 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

I cut the decal close to the lettering and applied it. I tried to put it off center to a fin which looks good on the face card. It’s a little skewed because it was a total eyeball job but I thought I could get it straighter, but it’s not terrible. I like the decal a lot but it does kill the prismatic in the clear parts. Overall I think it’s a plus. Pretty sure I am not doing the fin decals, I don’t think it improves the look. I’m overthinking this E2X.
Attached Thumbnails
Click image for larger version

Name:  33EC07D5-9D4D-4410-A198-F9B7AB005C32.jpeg
Views: 49
Size:  1.81 MB  
Reply With Quote
  #15  
Old 12-29-2019, 09:37 AM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

A little cold today but finally got to fly it. I checked approximate altitude by inputting the parameters in Thrustcurve which is awesome because it runs every motor that fits. Thrustcurve predicted 165 feet for a C11 and 370 feet for a D12 so with light winds as long as I aimed well I would be OK. I was set up near the soccer bleachers so planned to catch the C11 flight. I practically emptied a package of Estes wadding into it so I gave up on that, emptied the wadding and got the cellulose insulation. I made an X of two strips of wadding over the top of the tube and put the insulation on top in a big ball and gently pushed it down adding more insulation and pushing down until the tube was around 1/2 full. This makes a perfect seal and it’s cheap.

I was really concerned in the cold the chute wouldn’t open. I powdered it well and crunched it many times but it was pretty stiff. It was around 30 degrees F. I like to connect the shock cord to the nosecone then another line about the length of the nosecone, from the NC to the chute. That prevents the NC from fouling the lines. I had some recoveries where the nosecone came off but the chute stayed in the body, so I wrapped the packed chute twice with the nosecone cord which pulls it out of the body. I don’t wrap shroudlines around the chute since I’ve seen them stay wrapped.

The C11-3 is not a reccomended motor but was perfect for the rocket, great delay and came down maybe 50 feet away, and I snagged it by the shock cord above the tube. I was able to collect all the recovery wadding and reused it. Now I could judge the wind and adjusted the launcher for the D12-5. I was just a great flight and I think the 5 is right at apogee. I ended up running about 100 feet out and snagging it again, so I don’t know how the fins take a landing. The first video is bad because I took off running. The second is better and shows the catch at end a bit. Second pic shows the landing location with the pad shown near the bleachers.

C11 liftoff

D12 Flight

.
Attached Thumbnails
Click image for larger version

Name:  71BE8F7E-F56D-43F1-96F7-C0F38A712233.jpeg
Views: 25
Size:  1.54 MB  Click image for larger version

Name:  05097B28-392D-479A-A699-76E5A0BFF5CC.jpeg
Views: 25
Size:  1.67 MB  

Last edited by 5x7 : 12-29-2019 at 10:16 AM.
Reply With Quote
  #16  
Old 12-29-2019, 10:52 AM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

I may have put the engine hook too deep because the motors are flush with the end of the motor tube after the flight, I had to use a fingernail in the inside lip of the motor to remove the C11 and I could not remove the D until I got home and could push on it with a stick. First pic is the D stuck in the tube. Looking at the aft end the simplest thing to do was to trim off the motor tube at the aft centering ring which would allow the motor to protrude a tittle more than 1/4”. I used a break off knife where I could extend the blade out enough to work around the tube, removed the end and then trimmed the rough spots.
Attached Thumbnails
Click image for larger version

Name:  B339F4D3-A1B0-41C6-95C8-8F5AB372CF4E.jpeg
Views: 30
Size:  641.3 KB  Click image for larger version

Name:  69A9F097-5195-4E47-89F2-B1EEDE56CCDA.jpeg
Views: 30
Size:  876.9 KB  Click image for larger version

Name:  3BE96076-AEAC-4A08-8DF6-B4291D948050.jpeg
Views: 33
Size:  771.8 KB  
Reply With Quote
  #17  
Old 12-29-2019, 03:53 PM
Scott_650 Scott_650 is offline
Master Modeler
 
Join Date: Sep 2015
Posts: 624
Default

Quote:
Originally Posted by 5x7
The C11-3 is not a reccomended motor but was perfect for the rocket, great delay and came down maybe 50 feet away, and I snagged it by the shock cord above the tube. I was able to collect all the recovery wadding and reused it. Now I could judge the wind and adjusted the launcher for the D12-5. I was just a great flight and I think the 5 is right at apogee. I ended up running about 100 feet out and snagging it again, so I don’t know how the fins take a landing. The first video is bad because I took off running. The second is better and shows the catch at end a bit. Second pic shows the landing location with the pad shown near the bleachers.

With the number of rockets Estes has in their catalog that weigh between 6 and 10 ounces you’d think they’d have a motor between the C11 and D12. That 10 newton gap between the two seems awkward. Your Red Flare took off nicely on that C11 but if there was a substantive breeze I’d like a little more margin. Kind of wish I’d nabbed one during the Black Friday sale...neat rocket and a nice clean build - thanks for the thread!
Reply With Quote
  #18  
Old 12-29-2019, 04:29 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

Quote:
Originally Posted by Scott_650
With the number of rockets Estes has in their catalog that weigh between 6 and 10 ounces you’d think they’d have a motor between the C11 and D12. That 10 newton gap between the two seems awkward. Your Red Flare took off nicely on that C11 but if there was a substantive breeze I’d like a little more margin. Kind of wish I’d nabbed one during the Black Friday sale...neat rocket and a nice clean build - thanks for the thread!


With a breeze would think twice about the C11 and possibly go for a Q-jet D-16, which sims a bit higher at 288 feet, since it is the motor between the 8.8n/s C11 and 16.8 n/s D12, it was tested at 12.4 n/s, but also has a longer delay so would be...interesting.
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 05:03 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024