Joel_W Posted January 23, 2017 Author Share Posted January 23, 2017 JA Harvs pics look great and if you're willing to drive and buy breakfast, a trip to the museum sounds great‼ Bro Bro, How come I always have to buy breakfast, but yeah I'll buy but you drive, or visa vera. Joel mpk 1 Link to comment Share on other sites More sharing options...
Joel_W Posted January 23, 2017 Author Share Posted January 23, 2017 Taking a break from working on the fuselage. Ok to be truthful, I'm avoiding trying to re-scribe all the panel lines and rivets I sanded off for a while at least. So I decided to work on the wings. Grumman's decided to use what I call a split landing flap, where only the lower half of the wing is actually used as a flap. while the upper half is still part of the wing. Trumpeter with their movable surfaces has done the hard part in duplicating this feature in their wing sections. Here's what the kit upper wing section looks like. At 1st glance it looks pretty nice, but a closer inspection shows several errors. The ribs are too short in length as they stop where Trumpeter created a flat gluing surface. Rather the ribs should run to the trailing edge where there is a reinforcing strip that isn't on the kit wing either. My 1st thought was to buy the Eduard PE flap set and use it. Besides the cost, I prefer to try and modify, detail, or correct kit parts when ever possible, so that's the route I decided to take. Using .010 x .040 Evergreen strips, I made the trailing edge. Not having the correct size strips to cover those "open boxes" I cut the proper sizes from .020 sheet, then sanded them down some. Next I had to decide if I wanted to remove the to small ribs or somehow use them. So I tried to cut a series of ribs. Some came out ok, some didn't as each rib is a little longer then the previous one. I then came up with the idea of using .011 x .033 Evergreen strips glued on top and butting up against the trailing edge lip. This also gave the illusion of the top plate on each rib that is missing. the over all top wing viewed from the bottom looking up, while not being totally accurate, now has a proper look to it. Next up is the actual flap itself. Joel Shaka HI, mpk and dennismcc 3 Link to comment Share on other sites More sharing options...
Joel_W Posted January 23, 2017 Author Share Posted January 23, 2017 Fantastic attention to detail Joel. Nice clean work as well. Tony, Thanks so much for your input. It really means a lot, and helps me stayed focus on the path I taken to detailing the flaps. Joel mpk 1 Link to comment Share on other sites More sharing options...
monthebiff Posted January 24, 2017 Share Posted January 24, 2017 Joel, Always a good idea to move on to another part of a build rather than getting bogged down, great work on the wings by the way. Regards. Andy mpk 1 Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 After finishing the construction of the upper wing split flap area, I next turned my attention to the actual split flap itself. Like the top wing, Trumpeter molded the flap with a large trailing edge gluing surface, so that the flap ribs are way to short as they end right at that gluing surface. You'll also notice 5 rather large ejector pin depressions. I filled each depression with Bondo Glazing and Spot putty. When dry, I sanded and then sealed them with CCA glue. Next up I cut and glued a trailing edge lip from Evergreen 1x4 strips, and the leading edge stringer from 1x3 strip. Then using 1x3 strip I covered and lenghened the top of each rib, which as before also serves as the top stiffening plate that the kit ribs don't have, and then made the center stringer out of individual pieces of 1/3 strip. I dry fitted the flap to the wing to see how it actually looks. Then came priming time. I decided that that viewing area will be dark enough, so I went with MIG AMMO Gray Acrylic primer. I was intending to paint the flap surfaces Green Zinc Chromate as seems to have been the standard practice at that time. As I looked through my resources, and photos I realized that I didn't have a single picture of the flap extended. More Google searches, and a lot of guesses by modelers. Intereior green and GZC were the prevailing colors. I finally tracked down some more of Dana Bell's research, and once again there was a definative answer. Grumman had approval to use Grumman Gray as a primer and a color. They seemed to have followed their own painting procedures as with the Cowl and cowl flaps, and paint the inside surfaces of the Flaps Grumman Gray. But the aircraft produced by GM followed the standard Navy colors and painted them Yellow Zinc Chromate, not Green Zinc Chromate. As I stated in my last post, Dana Bell's research showed that the closest color to Grumman Gray was FS36440, which is also the same shade of Gray as the Mig Ammo primer (as per my not so great eyes). So, that's the way I went. Once the primer has set up, I dry fitted the flap to the upper wing: And finally a overall image of the back of the entire wing. Now on to the other wing. Joel mpk, Shaka HI and tomv87 3 Link to comment Share on other sites More sharing options...
Guest Posted January 28, 2017 Share Posted January 28, 2017 Most excellent Joel !........Harv Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 That's some great work Joel. I always admire how you never cut corners, and always take time to get it right Tony, Thanks for your most kind words, but believe me, I do cut corners. At least I sure think so. Joel mpk 1 Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 Most excellent Joel !........Harv Harv, Thanks for stopping by, and liking my modest flap improvements. Joel mpk 1 Link to comment Share on other sites More sharing options...
Guest Peterpools Posted January 28, 2017 Share Posted January 28, 2017 JA Terrific work on the flap assembly - excellent detail and glad you were able to pick up and carry the ball where Trumpeter left off. Keep 'em coming Bro Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 (edited) JA Terrific work on the flap assembly - excellent detail and glad you were able to pick up and carry the ball where Trumpeter left off. Keep 'em coming Bro Bro, Thanks for stopping by, and I'm glad you approve of the work. I'm still trying to figure out if the 1st two ribs are in fact square to the fuselage, while the rest are 90 degrees to the wing spar is correct or not. Also there are two additional ribs on the flap that have no corresponding ribs on the wing surface. Sure would like to know if that's right or not. If it was a Tamiya kit, I wouldn't even question it, but it's a early Trumpy kit, so who knows for sure. Does this update qualify me for a free breakfast tomorrow? Joel Edited January 28, 2017 by Joel_W mpk 1 Link to comment Share on other sites More sharing options...
Guest Peterpools Posted January 28, 2017 Share Posted January 28, 2017 JA Of course not. You never refer to Grumman as The Iron Works Gang, and that they were. So you should be picking up the tab Bro Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 Bro, Seems to me that I picked it up last time. Joel mpk 1 Link to comment Share on other sites More sharing options...
Shaka HI Posted January 28, 2017 Share Posted January 28, 2017 Fantastic scratch-built details, Joel! Keep'em coming (as Peter would say). mpk 1 Link to comment Share on other sites More sharing options...
Joel_W Posted January 28, 2017 Author Share Posted January 28, 2017 Fantastic scratch-built details, Joel! Keep'em coming (as Peter would say). Shaka Hi, Thanks my friend, I really appreciate you taking the time to checkout my update. Joel Shaka HI and mpk 2 Link to comment Share on other sites More sharing options...
TorbenD Posted January 28, 2017 Share Posted January 28, 2017 Just caught up with this build... Loving the attention to detail with some super scratch work here Joel Torben mpk and Joel_W 2 Link to comment Share on other sites More sharing options...
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