Kari Lumppio Posted December 4, 2020 Share Posted December 4, 2020 (edited) Hello! First I want to say the model work and finish is absolutely first class. There is something purposeful in the MiG-21 doubles. They were lighter than fighter versions with the similar class of thrust from engine so the performance was there, too (at least BIS&UM) "For any MiG-21 there is a need for the speed brakes to be open to varying degrees." Here I disagree. I was trainee at Valmet which overhauled Finnish Air Force MiG-21BISes. The front speed brakes open only if someone has deliberately released hydraulic pressure from them using T-handle behind a hatch. Even then one had to pry the speed brake open. Accuracywise there is no need to open MiG-21 airbrakes if you don't want to for some reason. For the ventral air brake I have more hazy memory as I worked almost exclusively on the Finnish reconnaissance version which had it removed. But I would say the same for that, too. No need to open the air brakes. Cheers, Kari Edited December 4, 2020 by Kari Lumppio Link to comment Share on other sites More sharing options...
AaCee26 Posted December 4, 2020 Share Posted December 4, 2020 Hi, A lovely model and an interesting conversion! I have been thinking to do the same but with a bit different path: Using Eduard wing and rear fuselage with UM nose and spine. Maybe I have still consider the alternatives? Cheers, AaCee Link to comment Share on other sites More sharing options...
Mihajlo Posted December 4, 2020 Share Posted December 4, 2020 Hi, Martin! Congratulations on this superb Mongol. And thank you for the detailed explanation about the conversion process. I tried to build a Mali Air Force MiG-21 MF-75 in 2 x grey/2 x green but I gave up because I couldn't get the exact colors. I wasn't convinced by the shades I got. Finally, I’m building a Bulgarian subject. I also have in mind to build an UM. Definively, yours will be a very good reference for me. I have KP UM and Eduard MF / PFM kits. Could you tell us the Aires and Pavla references you have used? Pavla references is C72029 (MiG-21 UM + vacu canopy)? What about the Aires and air intake references? As I said, many thanks for sharing this great work! Miguel Link to comment Share on other sites More sharing options...
RidgeRunner Posted December 4, 2020 Author Share Posted December 4, 2020 11 hours ago, Kari Lumppio said: "For any MiG-21 there is a need for the speed brakes to be open to varying degrees." Here I disagree. Thank you, Kari. I bow to your better knowledge. However, many images of MiG-21s at rest show brakes drooped, even if only a small amount. Whatever the reason it clearly was a feature. Many thanks too, Ryan @Ryan Hothersall 3 hours ago, AaCee26 said: A lovely model and an interesting conversion! Thank you AC 2 hours ago, Mihajlo said: Hi, Martin! Congratulations on this superb Mongol. And thank you for the detailed explanation about the conversion process. I tried to build a Mali Air Force MiG-21 MF-75 in 2 x grey/2 x green but I gave up because I couldn't get the exact colors. I wasn't convinced by the shades I got. Finally, I’m building a Bulgarian subject. I also have in mind to build an UM. Definively, yours will be a very good reference for me. I have KP UM and Eduard MF / PFM kits. Could you tell us the Aires and Pavla references you have used? Pavla references is C72029 (MiG-21 UM + vacu canopy)? What about the Aires and air intake references? As I said, many thanks for sharing this great work! Miguel Thanks a million Miguel. I will find the reference numbers for you. If I can help you with your build just ask - PM me or use the email address in my profile. Martin Link to comment Share on other sites More sharing options...
Homer Posted December 5, 2020 Share Posted December 5, 2020 Beautiful piece of work well done sir 👏 👍 Link to comment Share on other sites More sharing options...
RidgeRunner Posted December 5, 2020 Author Share Posted December 5, 2020 12 hours ago, Homer said: Beautiful piece of work well done sir 👏 👍 Thanks a lot, Homer Martin Link to comment Share on other sites More sharing options...
RidgeRunner Posted December 7, 2020 Author Share Posted December 7, 2020 On 12/4/2020 at 9:33 PM, Mihajlo said: I also have in mind to build an UM. Definively, yours will be a very good reference for me. I have KP UM and Eduard MF / PFM kits. Could you tell us the Aires and Pavla references you have used? Pavla references is C72029 (MiG-21 UM + vacu canopy)? What about the Aires and air intake references? Hola Miguel! @Mihajlo These were: Quickboost QB72 580 Air Scoops for the MF Peewit M72153 Paint mask for MiG-21UM Quickboost QB72 012 Nose intake and cone for the MiG-21F-13 Res-Im 7231 Wheels for the later MiGs Pavla C72029 Cockpit set for the MiG-21UM I do have a Master pitot set AM-72-047 but I didnt use it after losing a couple of fins to the hoover! I hope this helps! Martin Link to comment Share on other sites More sharing options...
jefropas Posted December 7, 2020 Share Posted December 7, 2020 That sir is an excellent conversion!!! Jeff Link to comment Share on other sites More sharing options...
Mihajlo Posted December 7, 2020 Share Posted December 7, 2020 2 hours ago, RidgeRunner said: Hola Miguel! @Mihajlo These were: Quickboost QB72 580 Air Scoops for the MF Peewit M72153 Paint mask for MiG-21UM Quickboost QB72 012 Nose intake and cone for the MiG-21F-13 Res-Im 7231 Wheels for the later MiGs Pavla C72029 Cockpit set for the MiG-21UM I do have a Master pitot set AM-72-047 but I didnt use it after losing a couple of fins to the hoover! I hope this helps! Martin Hi, Martin! Many many thanks for the references. I will gather all aftermarkets you used. I can not wait until Eduard or other manufacturer decide to produce a Mongol... He hoover... one of the worst enemies of modelers ... along with the black hole that every modeler has in their modeling room... 😉 I hope to do my Mongol half as well as yours 😉 Once again, thank you 👌👌👌 Cheers! Miguel Link to comment Share on other sites More sharing options...
RidgeRunner Posted December 7, 2020 Author Share Posted December 7, 2020 13 hours ago, jefropas said: That sir is an excellent conversion!!! Jeff Thanks a lot, Jeff. Miguel @Mihajlo, don’t hold you breathe for an Eduard Mongol. I’ve been asking them for a while and it is not on their radar at all. Oddly, the MiG-21bis isn’t either! It doesn’t make sense to me :(. I’m sure you’ll be making the twin sister of mine ;). Good luck! Martin Link to comment Share on other sites More sharing options...
Cessna Posted December 8, 2020 Share Posted December 8, 2020 Nicely done!!! Link to comment Share on other sites More sharing options...
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