Alan P Posted January 14, 2022 Share Posted January 14, 2022 Yep...as I said in the Revell build thread, it's probably accurate enough for most modellers in their intended market, but if you're looking for more, wait for H/G 👍 I know people say in modern model design with CAD/LIDAR and multiple, easy to access internet sources, it should be as easy to get right as it is wrong, but that's not really how the mass market works 🤔 in every possible consumer sense, it's rare for the best product to be the market leader. 4 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 18, 2022 Author Share Posted January 18, 2022 Some updates in this build: The wing planform from drawing has been printed out and compared with kit wing: The flaps and slats will be split from wing and flap hinge line will be corrected by adding an insert. The slat tip will be also reshaped to get correct angle. (see the drawings in my previous post). To bring the tertiary doors and therefore entire engine assembly to the correct position a part has been designed with 9mm insert and all fairings have been added to this model: Here is the entire exhaust assembly with this insert: The model is ready to print for dry fit. It will take around 4 hours to get the result. Serkan 6 Link to comment Share on other sites More sharing options...
billn53 Posted January 18, 2022 Share Posted January 18, 2022 I'm looking forward to seeing how this works out. It should make a big improvement. 1 1 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 18, 2022 Author Share Posted January 18, 2022 50 minutes ago, billn53 said: I'm looking forward to seeing how this works out. It should make a big improvement. Thanks Bill. In one hour I can do the first comparison. 2 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 18, 2022 Author Share Posted January 18, 2022 Here are original Revell assembly and the printed parts for Revell and Testors kit: Next step is to perform dry fit. Serkan 8 Link to comment Share on other sites More sharing options...
billn53 Posted January 18, 2022 Share Posted January 18, 2022 Nicely done sir. 1 1 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 18, 2022 Author Share Posted January 18, 2022 The marked print supports have been removed. Outer flaps were detached from wing. With a little effort the new part has been placed to its position: 9 Link to comment Share on other sites More sharing options...
billn53 Posted January 18, 2022 Share Posted January 18, 2022 Outstanding work! I'm mightily impressed. 1 1 Link to comment Share on other sites More sharing options...
Alan P Posted January 18, 2022 Share Posted January 18, 2022 This is really cool 👍 2 1 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 18, 2022 Author Share Posted January 18, 2022 Here are some close view photos: Next step is to perform nose wheel well dry fit... Serkan 10 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 19, 2022 Author Share Posted January 19, 2022 Here are the kit and printed nose wells: There is around 3mm difference in well and door lengths. I need to find out the reason and I have no access to real aircraft to measure the door size. I have an idea how to calculate it but I need some input data... Serkan 8 Link to comment Share on other sites More sharing options...
billn53 Posted January 19, 2022 Share Posted January 19, 2022 The printed bay looks 500-percent better than the kit item. I would say 1000-percent, but at least the kit piece had some attempt at detail (unlike some other Blackbird kits I know of). 1 3 Link to comment Share on other sites More sharing options...
bar side Posted January 19, 2022 Share Posted January 19, 2022 4 minutes ago, billn53 said: The printed bay looks 500-percent better than the kit item. I would say 1000-percent, but at least the kit piece had some attempt at detail (unlike some other Blackbird kits I know of). Hmm, can think of one of those too. Strangely shallow and flat 4 Link to comment Share on other sites More sharing options...
billn53 Posted January 19, 2022 Share Posted January 19, 2022 2 minutes ago, bar side said: Hmm, can think of one of those too. Strangely shallow and flat To the point: 4 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 19, 2022 Author Share Posted January 19, 2022 During my 1:72 Italeri conversions to improve a bit the nose well I copied the well details from Revell kit which has many other horrible inaccuracies especially at the cockpit and canopy area. 4 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 19, 2022 Author Share Posted January 19, 2022 Here is the method I decided to use: If I get the rim diameter and find a nice side view with minimum perspective distortion then I can roughly calculate the door dimensions. To get the rim dimensions I have to know the wheel size. After a little search in web I found that the wheel is 25x6.75 type VII. A bit reverse engineering but it works most of the time... From Dunlop wheel catalogue here are the specs of the wheel: where That means the rim outer diameter is equal to D+2xDF. Using a proper side view I can approximate the dimensions of the door referencing to rim diameter: and in millimeters in 1:48 scale: The Revell door length seems a bit longer (46.20 mm) whereas the printed one is 2.5 mm shorter. Now I have to find where this difference comes from... Serkan 4 1 Link to comment Share on other sites More sharing options...
billn53 Posted January 19, 2022 Share Posted January 19, 2022 Nitpicking warning! Per the above, DF is defined as the diameter of the flange, not the height of the flange. The correct equation is Rim Flange Outer Diameter = Rim Ledge Diameter + 2 x Rim Flange Height. For your example, that is D + 2 x Rim Flange Height (<< NOT DF) = 14.00 + 2 x 1.00 = 16.00 inches. 🤪 Excellent research, by the way 3 1 Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 19, 2022 Author Share Posted January 19, 2022 34 minutes ago, billn53 said: Nitpicking warning! Per the above, DF is defined as the diameter of the flange, not the height of the flange. The correct equation is Rim Flange Outer Diameter = Rim Ledge Diameter + 2 x Rim Flange Height. For your example, that is D + 2 x Rim Flange Height (<< NOT DF) = 14.00 + 2 x 1.00 = 16.00 inches. 🤪 Excellent research, by the way You caught me!.. I have realised too that the DF is referring to diameter but not the flange height. You were faster than me... 1 1 Link to comment Share on other sites More sharing options...
Scimitar F1 Posted January 21, 2022 Share Posted January 21, 2022 On 1/14/2022 at 10:58 AM, JeffreyK said: I have some detail sets in the works but will refrain from large "correction" sets, not only will they be unviable I think, also of course we are working on a kit that will be (I hope) as accurate as possible. I know what I will be doing and that is waiting for the Hypersonic one! When even the Scimitar is being laser scanned for accuracy there is no excuse for basic errors on such an iconic aircraft. Will 1 Link to comment Share on other sites More sharing options...
David H Posted January 22, 2022 Share Posted January 22, 2022 On 1/14/2022 at 3:21 AM, Alan P said: I know people say in modern model design with CAD/LIDAR and multiple, easy to access internet sources, it should be as easy to get right as it is wrong, I've always felt that to be a passive aggressive comment, used most by anal-retentive rivet counters who knoweth not the #$%^ of which they speak. They usually can't build worth a damn. Perfection takes time, and there are deadlines to meet. -d- 1 Link to comment Share on other sites More sharing options...
David H Posted January 22, 2022 Share Posted January 22, 2022 On 1/19/2022 at 10:02 AM, billn53 said: To the point: I've met people in Miami Beach with more depth than that. 2 4 Link to comment Share on other sites More sharing options...
Scimitar F1 Posted January 22, 2022 Share Posted January 22, 2022 31 minutes ago, David H said: I've always felt that to be a passive aggressive comment, used most by anal-retentive rivet counters who knoweth not the #$%^ of which they speak. They usually can't build worth a damn. Perfection takes time, and there are deadlines to meet. -d- That is a rather sweeping generalisation. Are you saying that LIDAR does not make the job of capturing a shape significantly easier? Link to comment Share on other sites More sharing options...
David H Posted January 22, 2022 Share Posted January 22, 2022 15 hours ago, Scimitar F1 said: That is a rather sweeping generalisation. Are you saying that LIDAR does not make the job of capturing a shape significantly easier? Oh no, on the contrary. It has helped a great deal. My comment is limited only to the remark "its just as easy to get things right as it is to get things wrong". Because, that IMHO is a dangerous oversimplification. The folks at Airfix will tell you that LIDAR is a great help, but it is still just a tool and not the be all and end all of getting the shapes right. They didn't use it on the Spitfire IX kit that's coming up. And "Getting it Right" is more than just about the shape and outline. Getting the proper configuration of something right and not having a mish mash of different blocks, dash versions and variants is a common problem too. Perfection is hard and it doesn't come quickly. Link to comment Share on other sites More sharing options...
Serkan Sen Posted January 23, 2022 Author Share Posted January 23, 2022 I think I found the reason of shorter NLG door I modeled: First comparison with YF-12A drawings: The blue one is the sketch l used in existing whell well. The pink one is the new sketch. Also a comparison with updated/corrected A-12 drawing: The red areas I had somehow forgotten to include in the existing well model... Also the nitrogen tanks seem that they were modelled a bit undersized. When all these missing areas added the door length matches the value what I calculated... Serkan 4 Link to comment Share on other sites More sharing options...
Neffan Posted January 24, 2022 Share Posted January 24, 2022 On 18/01/2022 at 23:27, Serkan Sen said: Here are some close view photos: Next step is to perform nose wheel well dry fit... Serkan Hi Serkan, great work 🙂 Link to comment Share on other sites More sharing options...
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