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Chapter 7: Fuselage Exterior |
The heat and humidity here in the Mid South can be unbearable in the dead of summer. So in order to park the car in the garage, which helps to keep it cool, I built my A-Frame and added six casters from Lowe's. To help give it a little more stability when moving it, I screwed two pieces of 1/2" EMT conduit in parallel laterals to each other. Now I can simply roll the Cozy in and out of the garage as needed, and Delia stays cooler in the summer. |
Like most other builders, I've checked out other websites to see how everyone else was doing it. I took a few ideas from a couple of builders and incorporated them into mine. The result is quite functional, and I'm very pleased with how easy it is to maneuver by myself. |
Like other builders have done, I sandwiched the center part of F-22 with two pieces of plywood, and cushioned with a piece of blue foam. |
This is what happens to a project when it is neglected over a period of three years. This project was stored in a barn in Stugis, South Dakota. As you can see from this picture, there is some sort of stain or stains on the bottom of the fuselage. I'll deal with it. |
This is the area just behind the rear landing gear bulkhead. I'll have to repair this area. If I don't feel good about it, I'll replace all of it. |
Here again, is the result of neglect. Don't invest your time and money just to let this happen! Since this project was started in the late 90's, there have been numerous revisions to the plans. I see this as an opportunity to bring this project back to life and up to par with current plans. All this foam is going to be replaced. |
There's nothing more to say about this that I haven't said already. |
Even the landing brake is worthless and must be replaced!!! |
The Nav antenna shows signs of corrosion and will be replaced. |
You can see the rotisserie portion of my A-Frame. It relies on a piece of 3/8" all thread with washers and nuts. I did what one builder did, I used a 2x4 across the top of the lower firewall utilizing the LWY or Z and the, the,...you know, those wood thingy's back there to hold it all together. Man! some of these things get confusing. I later remembered that the other builder I'm thinking of is Joe Hull. He's got alot of information on |
This is about the best looking part of the bottom part of the fuselage, and even it needs work! |
THE BUILD CONTINUES!!!!!! May 1, 2007 The first thing I did was to remove and replace the forward portion of the NACA scoop. Two reasons: 1. There was just too much damage to that part of the scoop, and 2. I had seen on another builders website where he had extended that portion of the scoop the eliminate the dip in the underside of the fusalage just behind the speed brake that the older plans method caused. The picture to the right is the new foam microed and weighted down with bricks that I've kept laying around the backyard. "You see dear? I knew these things would come in handy if I just hung on to them long enough"! |
In this picture you can see what appears to be Pour Foam oozing at the exterior of the main gear opening. I read on another builders website about using "Great Stuff" expanding foam for some of those little places that can be filled with this stuff....(note to self, and others that think this is a good and inexpensive way to do these little fills...DON'T DO IT!!!) This stuff is great for insulating drafty old windows and filling in gaps in the old homestead, but it stinks to high heaven on airplanes. It doesn't sand without balling up and causing horrible gaps in softer foams that may be adjacent to it. I guess we all learn our lessons the hard way. Never again! |
Here you can see the new and improved forward section of the NACA scoop. The white blotches just behind the new section of foam is a bit of "Great Stuff" tha i have since removed, and is now ready for glassing. |
Glassing the inside of the NACA scoop was a piece of cake. I layed up the 2 plies of Bid on a piece of heavy duty Reynolds Wrap per "The Cozy Girrrls". It really works great! Here is the scoop all glassed per plans. The dreaded "Joggle" wasn't all that difficult with the Bid in this area of the fuselage, but I'm sure it will be more af a challenge with the Unidirection glass in the next step. |
As I said earlier in this section, the Nav antenna was showing signs of extreme decay. I removed the old copper tape and RG-58 cable, and replaced with new RG-58 and copper tape from RST. For some reason, RG-58 cable is not very common in this area of the country. The only place I found it in Memphis was Bluff City Electronics. Here in this picture you can see that I have also added two additional antenna's. You can never have too many antenna's. |
May 11, 2007 |
Here are the new antenna's installed and potted with dry micro and ready for glassing. |
I decided not to install the hard point as called for in the plans for the step. I'll be installing a retractable step later. I'm planning on building extended stakes per "The Cozy Girls" and the plans step appears to be too far back to be of any use. The extended strakes have a certain "Kool Factor" that I really like. |
I've used dry micro to fill in some of those major ugly gaps and to smooth out the contours of the fuselage prior to glassing. Remember, I'm in the process of repairing three years of neglect and bring this wonderful design up to par. It's a chore, but well worth the effort. |
Here's the new and improved speed brake. I used "Office Depot" brand double sided foam tape instead of multiple plies of duct tape to build up the areas around the landing brake. It is just the the right thickness for the 1/16" depression that needs to be built up for the glass overlap. Because of the wax paper type backing, it should also have a good release once the brake is cut loose in Chapter 9. After posing a question on the Canard Forum about the possibility of slurry seeping down at the front of the landing brake, I was able put duct tape between the forward portion of the landing brake and the fuselage. I'll find out soon if this works. I'll take Wayne Hicks advice and just be very careful when it comes to spreading the slurry and also the epoxy. BTW, the holes in the foam are a result of a child and a pencil. Found the pencil.....child still missing...go figure! |
The plans are a little confusing when it comes to doing the exterior layups. It says to overlap the bottom ply with the side ply at the corners and they should overlap by 1". And that the layers should be staggered by 1". Well it's actually a little more wordy than that. I've seen people do the layups in many different ways...I guess it's what they are comfortable with. I did what my "On-line Hero", Wayne Hicks did. I used duct tape and paper to mark the line that I wanted to end my bottom layup at, and to keep as much slurry and epoxy off the sides of the fuselage as I could. The picture to the right is the finished bottom layup. Peel ply has already been removed and edges trimmed. |
One more view. Notice that I've taken a green fine point Sharpie and marked out the engine mount hard points. After all the reinforcement layups, it was getting a little hard to see. |
May 26, 2007 |
My Second Edition plans don't say anything about this step. Nat Puffer put this step out in a news letter. You are to remove the foam at the upper longeron as well as the LXY (or LZY...whatever...) wood pieces. and taper the adjacent foam areas for a glass to wood bond when it's time to attach the Center Spar. This step almost got left out, but good old Wayne Hicks website has a big disclaimer right there on the Home Page. Thanks Wayne...you saved me again! |
Contouring the sides was a piece of cake. I worried alot about this step prior to doing it. I used a Stanley Surform rasp and took my time. I made a sanding template for the CC section out of blue foam and sand paper. I used adhesive spray to keep it stuck to the foam. I had to spray and re-attach the paper several times, but the job was done in short order and turned out very nice. |
Under this pile of bricks is a brand new F-28 bulkhead curing. If you check back in the Chapter 4 section of this website, you'll see that my F-28 bulkhead was not positioned correctly. The old bulkhead could not be re-used because when moving it back by just slightly over 1/4", it becomes way too short to use. Therefore, another pile of bricks doing the job they were created to do...weigh down layups. |
May 28, 2007 |
June 23, 2007 |
Just finished glassing the left side of the fuselage. Total time involved was about seven hours. That included all the preparation time, such as carving out the area for the sight fuel guages and duct taping the paper to the bottom of the fuselage so that there wouldn't be a mess to clean up if a had an accidental epoxy spill. The picture to the right is the left side glassed and still in peel ply, waiting for cure and trim.The right side is the identical proceedure, so there won't be any pictures of it unless something truly amazing happens that needs to be documented. |
It's been a long summer with a lot of ups and downs. Delia's Mother was hospitalized for the better part of 3 months. At the first of June, while we were enjoying Disney World, she came down with an extreme case of the shingles. The doctors put her in the hospital for pain control. While there, her health began to deteriorate at an alarmingly fast rate. By the time the doctors discovered that she had artery blockage in two of her arteries, she was too weak for surgery. With a ton of prayers, and God's wonderful blessings, she is now making a full recovery at the time of this writing. I completed chapter 7 on September 23, 2007. I began working on parts for Chapter 8 during this time as well. The picture to the right is the "Obligatory" first flight photo with the whole family on board! |