Airlinercafe Home Page

Stop being a lurker - join our community and get involved. Sign up and start a conversation!
 

      Author Message

      dpohunter


      Members

       Online status  

       
      Add As Buddy
      Posts: 162
      Location:
      Occupation:
      Age: 60

      Post #67223, posted on 05-09-2017 GMT-5 hours    
      Currently building the Revell Germany 737-800. To my eyes, the winglets look a bit too wide at the top. Is it just me, or is this a known inaccuracy? Thanks!

      Never put off for tomorrow what can dry overnight

      Author Message

      BruinPrideBand


      Members

       Online status  

       
      Add As Buddy
      Posts: 352
      Location: SGF
      Occupation: International Aviation Law
      Age:

      Post #67224, posted on 05-09-2017 GMT-5 hours    
      The Revell winglets are wayyyy off. I've read that they are at least 25% too small. You can scratch build your own or there are a number of sources making replacements.

      Chris

      "Sorry Goose... But it's time to buzz the Tower."

      Author Message

      dpohunter


      Members

       Online status  

       
      Add As Buddy
      Posts: 162
      Location:
      Occupation:
      Age: 60

      Post #67226, posted on 05-09-2017 GMT-5 hours    
      Wow, Ok so it's not me, for once! They seen too big, if anything. I have already attached, puttied, glued, and painted them, so I best leave them be. They attach to the wing's tips with a tab barely a millimeter wide. How I haven't snapped them off by now is a small miracle. Another issue that surprised me was the incorrect (upward) angle the engines attain when attached to the wing, but that was easily corrected. Thanks for the info!

      Never put off for tomorrow what can dry overnight

      Author Message

      Ken Miller


      Members

       Online status  

       
      Add As Buddy
      Posts: 762
      Location: Campbell, CA
      Occupation: Govt. Employee
      Age: 124

      Post #67227, posted on 05-09-2017 GMT-5 hours    
      Somewhere online there is a diagram showing how the Revell winglets are off. I realize that isn't a whole lot of help :-)

      Ken

      Author Message

      dave6376


      Members

       Online status  

       
      Add As Buddy
      Posts: 297
      Location: Perthshire, Scotland
      Occupation: Retired lawyer
      Age: 64

      Post #67229, posted on 05-09-2017 GMT-5 hours    
      Quote
      dpohunter :
      Currently building the Revell Germany 737-800. To my eyes, the winglets look a bit too wide at the top. Is it just me, or is this a known inaccuracy? Thanks!



      The issues with the Revell B738 have been known for years. It's not just the winglets that are wrong, the engines are seriously wrong too. The stance of the finished model is also incorrect - the real aircraft does not have its tail in the air.

      You can buy replacement winglets and engines from BraZ Models or you can do the corrections yourself - http://www.britmodeller.com/forums/index.php?/topic/75911-correcting-the-revell-737-800/

      As far as the stance goes, opinions differ whether the main undercarriage legs are too long or the nosewheel leg is too short (I tend to the former view) but either way it needs to be fixed to make an accurate model.

      Author Message

      dpohunter


      Members

       Online status  

       
      Add As Buddy
      Posts: 162
      Location:
      Occupation:
      Age: 60

      Post #67230, posted on 05-09-2017 GMT-5 hours    
      Many thanks for the heads-up. Was not aware of the stance issue. That's the kind of thing you don't know about until it's too late to correct without potentially damaging other areas. Maybe I'm na´ve, but I've come to expect better from Revell Germany over the years, and I'm surprised to be running into these type flaws. Guess no one's perfect.

      Never put off for tomorrow what can dry overnight

      Author Message

      Eric B.


      Members

       Online status  

       
      Add As Buddy
      Posts: 10
      Location: Nantes
      Occupation:
      Age: 56

      Post #67232, posted on 05-09-2017 GMT-5 hours    
      Hello,

      Being at the Revell B737-800, you also might want to know that the stabilators airfoil are reversed : curved surface should be underside surface not upper as molded.

      A lot has been said about winglets (with some aftermarket parts being available on the market) same for engines.

      Unfortunately no correction set exists for stabilators.

      Eric B.

      Author Message

      Jennings


      Contributors

       Online status  

       
      Add As Buddy
      Posts: 3599
      Location: The great desert southwest, USA
      Occupation: Nurse Anesthetist
      Age: 115

      Post #67240, posted on 05-09-2017 GMT-5 hours    
      Honestly, unless you're just a glutton for punishment, I see no reason to bother with the Revell 737s. There are so many problems with them, and the Zvezda kit is so gorgeous, it seems throwing good money after bad.

      Author Message

      Ken Miller


      Members

       Online status  

       
      Add As Buddy
      Posts: 762
      Location: Campbell, CA
      Occupation: Govt. Employee
      Age: 124

      Post #67242, posted on 05-10-2017 GMT-5 hours    
      The window line being 2mm low hasn't been mentioned yet in this thread

      It would be good if someone could do an "objective" write up on all the "corrections" one could do for the Revell 737 kit and post it in an easy to find location.

      As to whether to buy a Zvezda or Revell kit I suspect it has to with what is on one's workbench or what is in one's kit stash. I've one Revell half done which will be completed one way or another eventually along with a handful of unstarted kits.

      The Zvezda sure sounds like a winner though.

      Ken

      Author Message

      Jennings


      Contributors

       Online status  

       
      Add As Buddy
      Posts: 3599
      Location: The great desert southwest, USA
      Occupation: Nurse Anesthetist
      Age: 115

      Post #67249, posted on 05-10-2017 GMT-5 hours    
      Quote
      Ken Miller :
      The window line being 2mm low hasn't been mentioned yet in this thread



      "There are so many problems with them..." That was included in that sweeping generalization.

      Author Message

      dpohunter


      Members

       Online status  

       
      Add As Buddy
      Posts: 162
      Location:
      Occupation:
      Age: 60

      Post #67251, posted on 05-11-2017 GMT-5 hours    
      Quite a laundry list of correctable items. I've had the Revell 737 on my workbench for more months than I care to admit. Through my cutting-edge Caveman Ingenuity, I managed to reshape the engine intakes, correct the engine angle and the winglet shape. Oh yeah, I also cut it down to a -700. It seemed like a good candidate for surgery at the time. Still, it has generated less headaches and profanity than other recent far-more-difficult builds.

      Never put off for tomorrow what can dry overnight

      Author Message

      TheFlyingDutchman


      Members

       Online status  

       
      Add As Buddy
      Posts: 495
      Location: Haarlem
      Occupation: Procrastinator
      Age: 26

      Post #67253, posted on 05-11-2017 GMT-5 hours    
      Here's my observation on fixing the errors in the 737 kit, for whoever still wants to take the challenge now the Zvezda kit is on sale.

      Engines:
      To be honest, they are barely fixable. I tried it though, by adding brass tubes in the inlets to make them rounder, opening up the hot section on the back side, and by cutting the nacelles off their pylons and repositioning them to make them parallel to the ground. This, in addition to a lot of putty to reshape them, while comparing them to a lot of photos. Quicker option: buying the Authentic Airliners engine replacements.

      Windows:
      As said, the window line is too low. It didn't bother me and I like transparent windows, so I didn't fix it. Best option to fix it: fill them all up and use decals instead, most modelers would have chosen this option anyway even if the windows were correct.

      Winglets:
      I reshaped them by adding thin pieces of styrene to the top, and sanding them to shape. I almost had to coat them in CA glue though to make them sturdy enough. Quicker option: buying resin 737NG winglets (BraZ for example) or split scimitars (included in the AA engine correction set as mentioned above, and a friend and I also made our own masters of which we sell resin copies (attachbeforeflight@gmail.com for more info, sorry for the commercial break )

      Horizontal stabilizer:
      The airfoil should be upside down. This is a relatively easy fix by just bending the tabs backwards and gluing them to the fuselage upside down with a little putty to fill the gap at the wing root
      You'd also have to fill up the row of circular inspection hatches that now appear on top and, if you're really into it, rescribing those back on the underside.

      Landing gear:
      I've never fixed this one, and I don't know whether the nose gear is too short or the main gears are too long..


      It's also said that the airfoil at the wing tips is incorrect and I'm sure there are some other smaller flaws that aren't mentioned yet, but with the fixes above I'm still convinced it can turn into a decent model, and the decal sheets are always superb and very complete.