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Cloud Bound 4

Old 05-06-2015, 05:21 AM
  #176  
teamwilly
 
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G'day ,Hallooooo , Guten Tag........anybody out there building and finishing their kit ? What is it that makes people stop building something so beautiful as a Cloud Bound 4 .

You can't do this to Ray Hayes . Finishing a kit of this calibre is character building....adds credibility to a builder ! Mine is on order.....come to think of it....I may end up finishing this thread .
Old 06-08-2015, 05:32 AM
  #177  
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I would certainly like to see a finished plane and a flight report. I don't have a kit, so I can't really contribute.
Old 05-26-2016, 11:59 AM
  #178  
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What happens to folks that buy this plane, get started, make good progress, then abandon the project. Has anybody finished one of these?

EJ
Old 05-17-2018, 09:03 PM
  #179  
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Hi, All. I picked up a CB4 kit through eBay, but as luck will have it, no instructions. Would be willing to pay a nominal fee for a copy of the instructions if one still exists. Please PM me if you would be able to help out.
Thanks!
Antares100
Old 05-17-2018, 11:12 PM
  #180  
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Have ou tried contacting Ray Hayes via Skybench.com?
Old 05-18-2018, 06:22 AM
  #181  
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Hi Hattend,
I have, but I know he is very busy filling orders for his kits so this would probably be a low-priority task. I'm looking to get the plans as soon as I can.
Old 05-18-2018, 05:45 PM
  #182  
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Sorry folks, I meant looking to get the instructions asap. Anyone?
Old 10-19-2021, 12:14 PM
  #183  
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Default Build continuation

I blew the dust and cobwebs off to resume building my Cloud Bound 4 after a hiatus of 17 years. I can't believe it's been that long. Man time flies!

I was on a roll until beginning the left inner wing panel. Then I became frustrated trying to build the wing with differences in the Skybench kit and the original design. Also the ribs had to be trimmed to fit and was much more difficult to build than I anticipated. Nevertheless, now I am determined to finish the model whatever it takes.

I finished installing the spars, ribs and sheer webs on the left panel and looks really cool. The original designer said in the RCM construction article that he borrowed the V-pattern for the ribs from the Grand Esprit.

My next step is to build the right wing panel to same point. Then I can check the dihedral and incidence before gluing the brass tubes.

Has anyone finished their Cloud Bound 4 and flown the model?







Last edited by McLeodAviation; 10-19-2021 at 09:55 PM.
Old 10-19-2021, 12:35 PM
  #184  
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I prepared the bottom sheeting for right inner panel. Next I will glue the pieces together including cap strips for the ribs.



Last edited by McLeodAviation; 10-19-2021 at 03:10 PM.
Old 10-26-2021, 05:06 PM
  #185  
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I finished the bottom sheeting and cap strips for the right panel. Laminated the carbon cap strip on the lower spar. Installed the lower spar and ply ribs 1-5. Installed the leading and trailing edges and all of the ribs in front of the spar. Next is the sheer webs and rear ribs with the V pattern.


Anything I could find for weight on the lower spar.

Wing sheeting, cap strips and lower spar completed.

Top spar has not been glued in this picture. I still need to install the 3/8" balsa vertical grain sheer webs before gluing the spar.

Last edited by McLeodAviation; 10-26-2021 at 05:15 PM. Reason: Add pictures.
Old 10-28-2021, 04:56 PM
  #186  
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Cool looking outline shown on the plan.


Old 10-28-2021, 09:49 PM
  #187  
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I still need to finish the sheer webs and V-ribs on the right panel but did a quick mockup. I had to be careful not to bump the wingtips on anything and the outer polyhedral panels still need to be installed for 144" span. The CB-4 is a big sailplane.


Old 11-03-2021, 10:36 PM
  #188  
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My build is temporarily on hold. I had to order some spruce for the spars. I used the last piece of 1/8 x 3/8 spruce for the lower spar on the left outer wing panel. The only spruce remaining in the kit is smaller 1/8 x 1/4. I guess Skybench must have supplied the smaller spruce for the outer wing panels. I don't know why else they would be in the kit. Nothing is mentioned in the instructions about different size spars. Oh well, I'd rather have the same size spar from the root to tip anyway. I also needed another 1/16x3x48" balsa sheet. Theres only 1 remaining in my kit and I need 2 for the top sheeting. Also needed a couple 36" sheets for top sheeting but had them in my stash.
National Balsa was the only place I found that sells spruce and balsa. They have a minimum order of $25 so I added a few extra pieces for my stash. I look forward to receiving the spruce sticks and continuing the build.




Last edited by McLeodAviation; 11-03-2021 at 11:35 PM.
Old 11-04-2021, 12:54 PM
  #189  
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National Balsa has great service. I placed my online order on Tuesday and received an email confirmation today that my order has been shipped. It was about 48 hours between ordering and shipping.
Old 11-09-2021, 05:23 PM
  #190  
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I received my order today from National Balsa and will resume building tonight. The quality of their wood looks excellent.
Old 11-11-2021, 07:52 PM
  #191  
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The rib notches adjusted for the correct width and height to install the top spar. Next is the vertical sheer webs and V-ribs.





Old 11-19-2021, 11:33 AM
  #192  
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Left outer panel finished except for the top sheeting.
The tip is elevated 2".


Old 11-19-2021, 12:00 PM
  #193  
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Some of the ribs were slightly too short for some reason but easy enough to fix. I just added strips of balsa and sanded to match the spar.








Last edited by McLeodAviation; 11-19-2021 at 12:02 PM.
Old 11-19-2021, 12:13 PM
  #194  
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I beefed up the polyhedral joint. I installed 3/8" vertical grain balsa sheer webs between the spars on both sides of the polyhedral joint. Also doubled the ribs and made a larger ply brace behind the spar. I am using one of the smaller ply braces that came with the kit in front of the spar.




Last edited by McLeodAviation; 11-19-2021 at 03:51 PM. Reason: Added info and corrected a mistake.
Old 11-19-2021, 12:30 PM
  #195  
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Parts laid out to build the right outer panel. I ran short of full length carbon cap strip so have to make the last one from 3 pieces. I will put the 2 smaller pieces toward the tip on the top spar.



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