Ron's RV7 Aircraft Factory


Welcome to my personal blog. This site was created as an informal description of my build progress in the construction of a Van's RV7 aircraft. A place where family/friends/builders/curiosity seekers can follow along. It is not intended to be a detailed description of every step in the building process as that would be much too time consuming. There are plenty of sites that do a great job in that arena, that is not my intention with this site. My intention is for this to be a philisophical/motivational/inspirational account of the emotional ups and downs of the life changing journey...and it will change your life. I hope this will give you an idea, through my eyes, of what its like to make this transformation. A note to other builders, I am not an expert so do not put your safety at risk by attempting anything you see on this site until you have done your own research, or send me an email so we can discuss it. Any deviations from the plans are not approved, nor endorsed by Van's Aircraft or myself. Thanks for visiting.



Showing posts with label Flaps. Show all posts
Showing posts with label Flaps. Show all posts

Sunday, January 2, 2011

Right Flap Complete HOBBS 412.5 hrs

The right flap has now joined the left flap and ailerons in its completion status. All wing control surfaces are now done! Cool.

On a side note. I am nearing the end of my intitial purchase of the two part epoxy Akzo Nobel primer. I realized I havent been doing a very good job mixing it by hand as there is quite a bit of sediment on the bottom of the gallon. I'm worried my primer mixture might be a little off? Not good...I will use my drill mixer from now on (or buy a mixing machine like my friend Bryan did)...another lesson learned...learn from my mistakes if you can.




Wednesday, December 29, 2010

Right Flap HOBBS 400.0 hrs

Worked on the right flap last night....no pics. Cleco, match drill, disassemble, file, debur, scotch brite, etc. Dimpling and priming next. As you can see, I have reached 400 total hrs on the project...sometimes it seems more like 4000 hrs! haha! Its daunting to think that I am only about 1/5 done. Its a marathon, not a sprint, thats for sure...just settle in and keep pluggin' along.

Tuesday, December 21, 2010

Left Flap Complete HOBBS 394.0 hrs

Finished up my left flap last night. As the plans said, this a pretty easy control surface to assemble. It is a little bit of a tight squeeze reaching inside to do some of the rivets but otherwise its pretty straightforward. I recieved a couple cuts on my hands in the process...and finally joined the "drilled my finger" club!

From what I've heard, I think its a right of passage when building an airplane to drill your finger at least once. It just grazed my thumb, but it was painful enough for me to say a few choice words. haha! On a side note, it sure is nice to rivet without having to deal with ProSeal all over the place!! :)




I would do the pop rivets (red arrows) before the solid rivets (blue arrows)...I didnt. This was a bitch to get into this tight space to do the pop rivets, and you can only do it with your 'modified' pop rivet gun (ground down for tight quarters). Click on the photo for a larger view.


Dont forget to machine countersink the main spar on the side where the hinge attaches.


I left the hinge pin uncut at full length since I'm not sure if I may need the extra length to secure it to the wing. I could've read ahead in the plans I guess? This works for now, I can cut it later.


And here is the finished product, sitting in its stand.

Monday, November 15, 2010

Flaps and Fuel Tanks HOBBS 377.5 hrs

Last week I acquired a new toy, an Apple iPad. My laptop had grown pretty old and decided to go TU so I figured, lets buy an iPad. I had heard that they were great in the cockpit, so that made it a lot easier to justify. I am still feeling out its capabilities, especially for flying, but so far it is a pretty amazing device...its a "game changer" in my opinion. So, what does that have to do with building an RV you ask? Well, I spent all of my weeknights playing with it so I didnt spend as much time working on the plane. Anyhow, I will keep you updated as to what I think about it for aviation purposes. I can tell you the free weather apps that I have downloaded are quite amazing...flight planning just got much more convenient.

This weekend, I still logged 7.5 hrs in the shop working on the fuel tanks and flaps. Yes, the fuel tanks...gosh these things will never end! :) I think I am ready to seal up the left one...attach the baffle and the access cover and then pressure test it. The right tank should follow closely behind.

Started the left flap construction. The instructions say, this is the easiest assembly on the wing. So far, I would agree with that statement. Not much to it, especially at this stage of the game...your building skills should be getting fairly advanced by now. A control surface like this is now a piece of cake...much different than when I first gazed at the elevator and stumbled through that.


Here is my fuel tank access hole, and also the place where I mistakenly installed 10-32 nut plates instead of the correct 8-32 nut plates. Click on the next pic for more detail.


Unless I am missing something obvious, this is a little confusing. Dont go by the pictorial representation of the nut plate like I did. The picture looks just like a 10-32 nut plate, but the callout correctly says 8-32 (K1000-08). I am leaving them as is, the access plate will be plenty secure on my plane. ;) So, thats why I had to order new nut plates from Van's...those buggers are about 0.50/ea so it wasnt a trivial mistake as I ended up ordering $17 worth of nut plates. doh!


And here is where all of those 10-32 nut plates went...left fuel tank attach brackets (Z brackets)


Here is a quick shot of my aileron trailing edge. I just wanted to note, I am not too proud to put pull rivets in the last hole. To try and drive a solid rivet in this small space is just silly in my opinion. I will use my filler to make that appear to be a solid rivet later on. Nobody will ever know...at least if they didnt read my blog they wouldnt. :)


Another shot of the aileron. A quick note, my policy in the shop is, torque it and immediately apply torque seal...that way you know later upon visual inspection...if its got torque seal, it indeed has been torqued...no questions asked, no mistakes.


The left flap getting assembled for the first time


Van's say you can build a jig to hold your flaps if you want, but its not necessary. Well, I thought...heck I have the materials laying around (those end pieces are on old desk that I disassembled) and it took me about 15 minutes to slap it together. Voila! Glad I did, it really helps when assembling the structure and certainly will be helpful when riveting it solo.


The continuous hinge (piano hinge) match drilled to the flap, this will attach to the wing structure later


Fabricating the attach bracket, you have to put a 6.3 deg bend in this bugger in a later step. I went too far and had to bend it back slightly. Beware, 6.3 degs is not much of an angle. You dont want to bend these things back and forth too much...it will work harden the material and it could crack, now...or worse, later.


Hole layout...