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2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Oldenginerod on Sat Apr 20, 2019 8:10 pm

944_Jim wrote:Can't be a build log with out pictures:

2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2103
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2104

What's with the rib on the outboard wing?
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Sat Apr 20, 2019 8:26 pm

In order to inset the engine into the wing, I had to carve out a good chunk of "leading edge." The rib is to add stiffness to the wing, like another fuselage would on an F-82. That outboard edge was awfully floppy until it was added.
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Sad Are y'all scared yet?

Post  944_Jim on Sat Apr 20, 2019 8:56 pm

OK, had to hang the engine on it for a minute:2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2108
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2107
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Apr 29, 2019 8:26 pm

Ok. Found the old rocket stuff. However, there was no nose cone. So a piece of bamboo shiskebob skewer and a few laminated disks later:
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2127
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2126
[url=https://servimg.com/view/19613432/227][img]


Last edited by 944_Jim on Mon Apr 29, 2019 9:51 pm; edited 1 time in total
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Apr 29, 2019 8:29 pm

Gets me to this...I still need to work out a fuel pod and a dolly:
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2128
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2129
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2130
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Oldenginerod on Mon Apr 29, 2019 9:41 pm

944_Jim wrote:
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2125

Hmmmm.  Huh...
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Apr 29, 2019 9:52 pm

Ok. Fixed mine...that's all anyone could come up with? Oh, and I did chuckle.
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Oldenginerod on Tue Apr 30, 2019 4:47 am

944_Jim wrote:Ok. Fixed mine...that's all anyone could come up with? Oh, and I did chuckle.

A picture's worth a thousand words!! Cool
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Tue Apr 30, 2019 9:36 pm

I'll save the words:

2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2132
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2133
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2131

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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Dave P. on Wed May 01, 2019 7:18 am

The only word that comes to me is YEEHAA! Damn!
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  getback on Wed May 01, 2019 8:22 am

That is one mean looking Model !! Clapping
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Tue May 21, 2019 5:35 pm

Still working it...first coat of sealer top and bottom. I'll probably sand a bit tonight, seal more tomorrow am, and then work a color or two onto it to check compatibility with the sealer...Deft:2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2135
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Sun Jun 30, 2019 9:16 pm

Ok...just a little late, but at least I believe this thing flies or burns July 4th.

Only have to see the elevator hinge line and paint. Fuel cell is just a hotel shampoo bottle with a balloon on a fuel line in it.2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2140
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2141
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2142

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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Cribbs74 on Sun Jun 30, 2019 9:27 pm

Looks good, the plane that is, The weiner tank is suspect. Laughing
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Sun Jun 30, 2019 9:51 pm

That wiener tank (giggle) is the "housing" for the JATO. I hope to have video of this. I may be able to stay upright for about 6 laps. If I make the whole ten, I'll consider this a success! The engine needs to be benchrun to find out how much fuel for 45-65 seconds. I hope that should be about 13 laps or so.
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  getback on Mon Jul 01, 2019 7:33 am

Can you tell me how does that dolly work , those holes in the wing look pretty tight for the plane to get out of ? Huh...
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Jul 01, 2019 9:17 pm

Hi Eric,

Just tonight the holes were enlarged and a bit of plastic control rod sheath/tube was super glued into each hole. The plastic tube should slide/release smoothly (I hope). I admit there will be no development time, nor desire to fine-tune...it flies, bores a hole in the ground or burns. No other options wanted or needed. One time flight only!

The uprights or pegs sit tilted back just a bit. I hope as long as neutral elevator is applied that the model will sit "under" the rearward tilt. Once UP is commanded, then the model will (hopefully) pivot on the back edge of the wing, this bringing the front off the pegs.

Elevator was sewn tonight too. Hopefully paint goes on tomorrow. Still need to make up a set of lines, find a rocket engine, complete my fuel cell/balloon cork.

Getting closer...inspired to completion by Paul Gs SR-71!
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Jul 01, 2019 9:54 pm

For Eric:

2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2144
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2143
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2145


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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Mon Jul 01, 2019 10:15 pm

Fuel cell? Right now it is a latex finger. I hope to find my son's water balloons.
I may try his braces elastics to minimize the bulk of a rubber band.2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2146
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2147
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  Oldenginerod on Tue Jul 02, 2019 5:29 pm

944_Jim wrote: I hope to find my son's water balloons.

Water balloons are designed to bust. Too thin. Use a regular balloon.
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Sat Jul 06, 2019 11:54 am

Ok. Clock is ticking and time is almost out. But I will.co timue, even if I miss entry.

I mentioned earlier that I used Deft Sanding Sealer to seal the wood. I was concerned about AeroGloss over Deft. This morning's test sealed it! I will continue to use Deft in the front end of a build with a topcoat of AeroGloss...at least until I run into problems.

Here is a teaser. I hope to be able to see the blue against the trees:2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2150
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2149
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2148
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  getback on Sun Jul 07, 2019 9:29 am

Jim , Did you find the rocket engine U wanted for it ? I take it were the paint pole is , is where the rocket engine will go . Fireworks Smile
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Sun Jul 07, 2019 9:37 am

Hi Eric,

I have to look in the BOTTOM box of childhood toys. ISTR a spare B6-x engine in there, and being too concerned about overhead traffic. I have an Air Base several miles north, and I'm under one of the corridors for the local airport.

Yes, the engine will go where the paint pole is. Both recip and chem engines have a smidge of down thrust and right thrust. I hope my SWAGs are good enough.

The stooge may need some bracing, and I have to rig a line path past the rocket nozzle. The intent is the rocket will burn through the "launch line" to release from the stooge.

Getting closer:
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2153
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2152
2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim - Page 2 Img_2151

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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  944_Jim on Fri Jul 26, 2019 10:16 pm

Ok...taking this one to the very end. Let's just say "Life has been busy!"

I plan on trying the release line around the front of the rocket pod, and behind the exhaust nozzle. The idea is the string burns through releasing the model and dolly from a stooge.

Here is the concept run:


https://youtu.be/UmOdwS4m2bQ
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Sad Re: 2019 CEF Run What YA Brung UNLIMITED speed contest Build Log by 944_Jim

Post  getback on Sat Jul 27, 2019 8:50 am

COOL was the simulated landing lol! lol!
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