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b757captain last won the day on July 10 2015

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  1. b757captain

    KH T-28 Flap Fix (not a full build thread!)

    The last time I was up close to a T-28 was about a year ago and I forgot to look for the entry process. I don't remember seeing a step but it could be a recess with a hinged door in the flap. Makes sense since I've never seen a retractable step and the plane is tall and (relatively) huge up close.
  2. b757captain

    KH T-28 Flap Fix (not a full build thread!)

    Kitty Hawk made several errors in the flap and aileron shape. First problem: the lower leading edge of the flap comes to a sharp point: Second problem: The inner edge of the aileron (and adjoining edge of the flap) are angled so as to be vertical to the ground in relation to the wing dihedral: From an engineering standpoint, these angles are impossible - the aileron would bind with the flap when deflected upward. Third problem: the flap hinge point are also angled relative the ground. Fourth, the wing cavity for the flaps has a really odd shape which will be difficult to fix. I missed getting photos here, but both of these problems are not an issue with the fix. The Fix: I wasn't trying for accuracy in the flap well, just a better representation of the proper flap position when down. So out with the sandpaper! I fixed both flaps in about 30 minutes. First up was to sand the aileron edge so it was perpendicular to the wing chord: Before sanding - line shows what to remove to square it up: There was plenty of material here, I didn't need to add any plastic stock. Next sand the corresponding edge of the flap to match. When the test fit looks good (with the flap in the retracted position) now it's time to round off the sharp edge of the flap: Sorry for the blurry pic - I thought it came out better and now it's too late: The entire leading edge should be rounded. Not too much, just enough to allow the leading edge to tuck up into the flap cavity. Again, there was plenty of material to take off. Next up is plenty of test fitting. I had to trim a small portion of the flap hinges on the wing. Keep rounding the leading edge of the flap until the upper camber of the flap rests against the underside of the upper wing skin. The plastic could be thinned here if you want but I didn't think it was needed. A very small portion of the inner forward edge of the flap needs to be trimmed to fit against the fuselage. Here's a pick of one flap per the kit install and the other after the fix: And closer pics - lower view (look close and you can see the sliver I had to trim against the fuselage): And upper view: And both flaps permanently installed: To my eye this makes a huge difference in the overall look of the plane. I decided against going all out and detailing the flap well and I still need to clean up the hinges, but this won't bug me anymore and now I can sleep tonite! Cheers, Mark
  3. Hiya gents, I'm well underway on the build of my KH T-28C and though going well so far one thing about the kit has really bugged me. The flaps!! Kitty Hawk did a pretty good job overall on the rest of the kit but the flaps are just plain wrong! What am I talking about? Well, Flaps 101 (basic lesson) there are 4 (generally accepted) types of flaps - plain, split, slotted and fowler. Plain are what you see on a P-51, split on a Spitfire or P-40, and fowler flaps on a P-38. The T-28 has slotted flaps which means the flap pivot point is somewhere close to the lower edge of the forward part of the flap body. As the flap is extended the flap body rotates around this point, the upper radius tracks along the upper wing flap fairing edge and the lower part rotates up into the flap cavity. Here are pictures of the flap installed on the kit in the retracted position: Lower view: And upper view: The flap doesn't fit well in the retracted position as it is too long for the cavity. I had to sand the outer edge down just to make it fit for the pics. Most photos of parked T-28s seem to have the flaps extended so that's what I'm doing. Unfortunately this is what the flap looks like if built per KH: Lower view: And upper view: This is what they should look like: So what causes this, and how do yo fix it? Stay tuned. Cheers, Mark
  4. b757captain

    T-28C Question

    A question for the experten: I'm currently working on the KH T-28C and I've been stymied trying to find references for the correct configuration for seat cushions. The kit provides seat bottom and back cushions but I'm trying to find out if the pilots wore parachutes that substituted for the cushions, and if the seat back cushion would instead have been a life raft pack. There is just no or bad info on the interwebs as most photos are of civilian restored aircraft. Thanks, Mark
  5. b757captain

    1/32 Hasegawa P-40E Warhawk

    A TINY hotel room! Thanks Maxim!
  6. b757captain

    1/32 Hasegawa P-40E Warhawk

    Thanks guys!
  7. b757captain

    1/32 Hasegawa P-40E Warhawk

    Good point. I don't follow new releases in other scales closely but it seems to me Hase has slacked off. Maybe they are focusing on other hobby areas? I'm really looking forward to the new ZM twins!
  8. b757captain

    1/32 Hasegawa P-40E Warhawk

    Thanks Mike! Yep, the only kits always in stock are Tamiya and ZM. Strange that Hasegawa isn't.
  9. b757captain

    Zoukei-Mura P-51 Mustang Miss Marilyn II

    Thanks Mike!
  10. b757captain

    Zoukei-Mura P-51 Mustang Miss Marilyn II

    Thanks Maru! I have another ZM P-51 in the stash. I always thought combing the internals of the ZM with the clear parts of the Monogram Visible Mustang would be a cool project. I'm now thinking it might be better to cast clear resing pieces from the ZM kit parts. We'll see. I'm not a huge Mustang fan but having just completed the Tamiya A6M-2, I'm keen to tackle their Mustang. Plus I want to do a P-51 in the "Miss America" race scheme. Plus I have a Trumpy -B on the shelf. Dang it, that's half a squadron
  11. b757captain

    Zoukei-Mura P-51 Mustang Miss Marilyn II

    Thanks Chris!
  12. b757captain

    Best NMF kits?

    Has anyone suggested the P-38? If not . . . How about a P-38? The vast majority of P-38L models were NMF and the Trumpy kit, with a little work is not too bad.
  13. b757captain

    Not Enjoying the Hobby

    Sometimes taking a break is good - it's not supposed to be a job, it's a hobby, one you can walk away from until you regain some mojo. As to the tedium of exactness, correctness, shape and color arguments, etc., you don't mention if that is self-imposed or not. If it's pressure to satisfy the crowd, ignore it and do what you want. If it's your inner demons, how about picking a kit you don't have a ton of affinity for and do a "what-if" build. You know, what if the Union Pacific Railroad bought T-33s? Or the NHRA allowed John Force to dragrace an F-104? A few years ago I did an Me-262 in USAF Thunderbirds livery and thoroughly enjoyed it, partly for the challenge and partly for not having to adhere to RLM colors. Cheers, Mark
  14. b757captain

    Cessna O-2A interior colors

    The photos I found while researching my O-2 build support Jennings. All the period pics seem to indicate a gray interior color. However, there were a few photos of modern restored O-2s with ZCG interior. I suspect a restored airplane with less then accurate paint. Maybe that's where Roden got the idea. As a recommendation - get the brass gear! You'll need it. Plan on adding lots of nose weight up front, even packing it underneath the instrument panel/dash. Which doesn't fit very well. And watch the front windshield fit, it's tricky. Other than that, not a bad little kit. Have fun! Mark