Mig - 21
08-27-2002, 12:15 AM
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Mig - 21
I know that Chris Patterson from Australia built and flown a few Mig21s. It was at the 4th JWM but encountered problems and didn't fly. The Mig 21 is 1/9 scale and used SimJet 2300 turbine with very ingenious retract system and full scale cockpit. I was fortunated to have one of the prototype and can post some pictures here. (I have to get to another computer)
Try to contact Kevin Dodd at TAMC, he will have more info as I don't have Chris Patterson's email.
Kevin's email: [email protected]
I know that they even have the soft mould for this bird. Very good looking. Will fly very good if you can keep the weight down. Chris's Mig21 was a bit heavy and had very high wing loading making it very tricky to fly. But it flies very well with 10kg thrust.
B777
Try to contact Kevin Dodd at TAMC, he will have more info as I don't have Chris Patterson's email.
Kevin's email: [email protected]
I know that they even have the soft mould for this bird. Very good looking. Will fly very good if you can keep the weight down. Chris's Mig21 was a bit heavy and had very high wing loading making it very tricky to fly. But it flies very well with 10kg thrust.
B777
08-27-2002, 03:31 AM
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Mig - 21
Tom,
I wrote to Yves about the Mig about a month ago (great minds...). He said "it is not available"
I'm looking over here for one as well. It's getting cooler here. Maybe I should start carving some foam.
I wrote to Yves about the Mig about a month ago (great minds...). He said "it is not available"
I'm looking over here for one as well. It's getting cooler here. Maybe I should start carving some foam.
08-27-2002, 07:59 PM
#6
Mig-21
Hi,
A very interesting plane indeed but one has to solve the problem of the retracts system with the wheel going 90 degrees against the axis of the main strut. It means that the wheel has to remain vertical inside the fuselage until it retracts down.
Also I noticed that the front wheel retracts in a very confined space within the bifurcated intake.
Moreover, the Mig-21 had a very thin wingrib profile.
I wonder how our Aussie friends managed to tackle these problems.
I am sure that one would be rewarded with a wonderful plane once the teething trouble are solved.
To wet your apettite I am enclosing a scale drawing of the PF version. I am limited to the space allocation on rcu.
Hope someone would tackle this wonderful subject.
Regards
Reuben Saliba
Malta (Europe)
A very interesting plane indeed but one has to solve the problem of the retracts system with the wheel going 90 degrees against the axis of the main strut. It means that the wheel has to remain vertical inside the fuselage until it retracts down.
Also I noticed that the front wheel retracts in a very confined space within the bifurcated intake.
Moreover, the Mig-21 had a very thin wingrib profile.
I wonder how our Aussie friends managed to tackle these problems.
I am sure that one would be rewarded with a wonderful plane once the teething trouble are solved.
To wet your apettite I am enclosing a scale drawing of the PF version. I am limited to the space allocation on rcu.
Hope someone would tackle this wonderful subject.
Regards
Reuben Saliba
Malta (Europe)
08-27-2002, 11:23 PM
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3-views, cross-sections (These are not plans)
If anyone is interested, I found some good drawings of a Mig-21 that has cross-sections on it. If anyone is considering starting from scratch, let me know and I can send you a copy. It has 6 different models on it.
08-29-2002, 12:17 AM
#10
Mig 21
If memory serves me correctly, DL Aero here in Canada had one some time ago. You may want to ask them??
http://www.dlaero.com/
Hope this helps cause I could be wrong!
Myles
http://www.dlaero.com/
Hope this helps cause I could be wrong!
Myles
08-29-2002, 12:55 AM
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Mig - 21
You are right about the gears, Reuben, but I could work it out so they operate as the scale ones. They are retracting 30 deg. forward and the wheel pivot by 90 deg. at the end of the oleo so it can fit in the fuselage sides, vertically!
I stopped working on the design because there was no retracts available on the market, needing strong units, 95 deg. mains and 110 deg. for the nose gear. Of course, my nose gear is scale and I have all the tooling to produce the casted parts.
Good news! Robart is working on getting me a set of 550 Mighty to fit the Mig 21. Once I get them, I will get it down from the ceiling, remove the dust, drop the P-80 in and go fly! By next spring, I should be complete with the kit engineering and I will decide if I go into production.
It flew very well on DF and .91. It is 84" long, 40" span. and weighted 15 1/2 pounds. It is the F-13 version.
Yves Duchesneau
DL Aeromodeles inc.
I stopped working on the design because there was no retracts available on the market, needing strong units, 95 deg. mains and 110 deg. for the nose gear. Of course, my nose gear is scale and I have all the tooling to produce the casted parts.
Good news! Robart is working on getting me a set of 550 Mighty to fit the Mig 21. Once I get them, I will get it down from the ceiling, remove the dust, drop the P-80 in and go fly! By next spring, I should be complete with the kit engineering and I will decide if I go into production.
It flew very well on DF and .91. It is 84" long, 40" span. and weighted 15 1/2 pounds. It is the F-13 version.
Yves Duchesneau
DL Aeromodeles inc.
08-29-2002, 01:45 AM
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Mig-21
It is the F-13.
the Mig-21 is extremely well documented and there are many versions.
I hve many books about it but the best one is from Aerofax, written by Yefin Gordon & Bill Gunston, 8 1/2 x 11, 144 pages. tons of good pics and all the 3 views.
I also visited Dayton one year from my way back from Superman and spent a few hours around the Mig-21. You can't see it in the museum, you have to ask at the front door and they will allow you to drive all the way around the airport, in some hangars at the back. There is a Mig-21 F in there and you can get very close. the guy at the door even brought me a portable ladder so I can climb and give a look inside the cockpit. One very interesting thing is that the front intake is a single piece of sheet metal, rolled to the form of the fuselage. I could not see how far deep in side it is like that but it is at least 3 feet long, where the inside of the ducting is actually the outside of the fuselage, it is the same piece of metal!!!
The russians don't care how nice it is...but what an efficient design this airplane is.
the Mig-21 is extremely well documented and there are many versions.
I hve many books about it but the best one is from Aerofax, written by Yefin Gordon & Bill Gunston, 8 1/2 x 11, 144 pages. tons of good pics and all the 3 views.
I also visited Dayton one year from my way back from Superman and spent a few hours around the Mig-21. You can't see it in the museum, you have to ask at the front door and they will allow you to drive all the way around the airport, in some hangars at the back. There is a Mig-21 F in there and you can get very close. the guy at the door even brought me a portable ladder so I can climb and give a look inside the cockpit. One very interesting thing is that the front intake is a single piece of sheet metal, rolled to the form of the fuselage. I could not see how far deep in side it is like that but it is at least 3 feet long, where the inside of the ducting is actually the outside of the fuselage, it is the same piece of metal!!!
The russians don't care how nice it is...but what an efficient design this airplane is.
08-29-2002, 03:05 PM
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Mig - 21
This is my Mig 21..same moulds as Chris Patterson's Mig at the 4th Jet Master. I have his unique and one of a kind retract system. Very nice...but need time to prep it to fly. She has flown nicely with 10kg thrust turbine.
B777
B777
08-29-2002, 04:09 PM
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Mig-21
If I ever come out with a Mig-21 kit, it will sure be turbine powered, not DF.
The market for new DF airplane kit is simply not there. The costs associated with the tooling and manufacturing are too high to release new DF products. Sorry. Maybe in a couple years from now, if there is a come back to the older DF technology, the kit manufacturers will rethink their products but for now, the market is towards turbine powered airplanes.
Yves D.
The market for new DF airplane kit is simply not there. The costs associated with the tooling and manufacturing are too high to release new DF products. Sorry. Maybe in a couple years from now, if there is a come back to the older DF technology, the kit manufacturers will rethink their products but for now, the market is towards turbine powered airplanes.
Yves D.
08-30-2002, 05:34 PM
#18
Mig - 21
I am also a MiG-21 fan. I took some photos of one recently, and concur the MLG installation would be difficult, unfortunately. It looks like some dedicated modellers were able to do it though! We need to fill the skies with MiGs in order to take on the BVM Phantom squadrons out there! 
08-30-2002, 06:07 PM
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Mig - 21
Originally posted by Ron S
I am also a MiG-21 fan. I took some photos of one recently, and concur the MLG installation would be difficult, unfortunately. It looks like some dedicated modellers were able to do it though! We need to fill the skies with MiGs in order to take on the BVM Phantom squadrons out there!
I am also a MiG-21 fan. I took some photos of one recently, and concur the MLG installation would be difficult, unfortunately. It looks like some dedicated modellers were able to do it though! We need to fill the skies with MiGs in order to take on the BVM Phantom squadrons out there!
PHANTOMS RULE THE SKY!!!!!!!!!!!!!!!!!!
08-30-2002, 08:04 PM
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Re: Mig-21
Hello Yves, bonjour !
Just curious, where do you find proper informations to duplicate retracts cinematic ? From a 3 views only ?
There is a few planes that I think could make very good models, but I have no ideas where to find proper documentation on the retracts. As an example, I am thinking Mirage f1 and Sepecat Jaguar. Alphajet fall in the same category (Small inlets, but..).
Bernard
Just curious, where do you find proper informations to duplicate retracts cinematic ? From a 3 views only ?
There is a few planes that I think could make very good models, but I have no ideas where to find proper documentation on the retracts. As an example, I am thinking Mirage f1 and Sepecat Jaguar. Alphajet fall in the same category (Small inlets, but..).
Bernard
08-30-2002, 08:26 PM
#22
Drawings
Hello Bernard,
I think I can help you with the drawings of some of those planes.
With regards to the Mirage F1 I believe there was a write-up of a kit that was made some time back. With regards to the Jaguar I can visualise two problems with this plane...namely the landing gear retraction system and the differing positions of the inlet and outlet ductings...otherwise a very nice plane. In the case of the, Alphajet I reckon that one has to power the plane with two small (?) turbines in which case then one would look at other subjects which might be more feasible than this jet. Again..if one is going scale, the retraction system and location of the gear makes it also a difficult (at least for me) subject to bring to fruition.
Anyway...if you wish my email address is:
[email protected]
Regards
Reuben Saliba
Malta (Europe)
I think I can help you with the drawings of some of those planes.
With regards to the Mirage F1 I believe there was a write-up of a kit that was made some time back. With regards to the Jaguar I can visualise two problems with this plane...namely the landing gear retraction system and the differing positions of the inlet and outlet ductings...otherwise a very nice plane. In the case of the, Alphajet I reckon that one has to power the plane with two small (?) turbines in which case then one would look at other subjects which might be more feasible than this jet. Again..if one is going scale, the retraction system and location of the gear makes it also a difficult (at least for me) subject to bring to fruition.
Anyway...if you wish my email address is:
[email protected]
Regards
Reuben Saliba
Malta (Europe)
08-30-2002, 09:37 PM
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Re: Drawings
Originally posted by F86_SABRE
With regards to the Mirage F1 I believe there was a write-up of a kit that was made some time back.
With regards to the Mirage F1 I believe there was a write-up of a kit that was made some time back.
Yes, sometime ago there was a paper from a guy in New Zealand (if I remember well) doing a mirage F1, and he was intending to make a kit, but never heard anything since then. At the time of this article, he was not having a scale mecanism for the landing gear.
With regards to the Jaguar I can visualise two problems with this plane...namely the landing gear retraction system and the differing positions of the inlet and outlet ductings...otherwise a very nice plane. In the case of the, Alphajet I reckon that one has to power the plane with two small (?) turbines in which case then one would look at other subjects which might be more feasible than this jet. Again..if one is going scale, the retraction system and location of the gear makes it also a difficult (at least for me) subject to bring to fruition.
Anyway...if you wish my email address is:
Thanks anyway, I may contact you by email sometime later.
Bernard
08-31-2002, 02:53 AM
#24
Mig - 21
Gentlemen,
The article in RCJI on the Mirage F1 was authored by Henk Oosthuizen from South Africa. I have met Henk on two of my trips to RSA, and I took back 2 of his F1 kits with me on the first trip, and 2 of his F-86 kits with me on the 2nd.
Let me tell you this, his Mirage F1 is 1:7.5 EXACT scale, and the finest (and only) Mirage F1 kit you will ever find. The quality of the glass work is world class and his craftmanship is impressive. Oh year, and the price is very nice too.....$650. I have video footage of this jet flying with an AMT Mercury under the hood, and it is too real to believe (if you have had the joy of seeing the full scale F1 in action!)
Henk is very busy this year with work commitments and has quit the kit-making business for this year until the demands of his job settle down. Maybe next year the F1 kit will be available again?
As for scale documentation on the F1, I have a lot of it. I am a big F1 fan and wrote directly to Dassault Aviation in Paris. THe result was better than I could have dreamed for.....1/10th scale 3-views and fusleage x-sections. I also got in touch with people in Spain (CASA) and RSA (Atlas Aircraft), both companies build/maintain Mirage F1s, for further details/drawings of the aircraft and it's landing gear. I actually made a lot of progress on a 1:6.8 Mirage F1, but like Henk, work and family commitments brought the project to a halt. Also, with Henk's Mirage F1 kit already available I decided to just build his instead.
Henk is working on scale gear for his F1 kits, but this will take some time. I plan to work with Ed Dobias of RcCrafters to get some gear for mine.
Later,
Peter
The article in RCJI on the Mirage F1 was authored by Henk Oosthuizen from South Africa. I have met Henk on two of my trips to RSA, and I took back 2 of his F1 kits with me on the first trip, and 2 of his F-86 kits with me on the 2nd.
Let me tell you this, his Mirage F1 is 1:7.5 EXACT scale, and the finest (and only) Mirage F1 kit you will ever find. The quality of the glass work is world class and his craftmanship is impressive. Oh year, and the price is very nice too.....$650. I have video footage of this jet flying with an AMT Mercury under the hood, and it is too real to believe (if you have had the joy of seeing the full scale F1 in action!)
Henk is very busy this year with work commitments and has quit the kit-making business for this year until the demands of his job settle down. Maybe next year the F1 kit will be available again?
As for scale documentation on the F1, I have a lot of it. I am a big F1 fan and wrote directly to Dassault Aviation in Paris. THe result was better than I could have dreamed for.....1/10th scale 3-views and fusleage x-sections. I also got in touch with people in Spain (CASA) and RSA (Atlas Aircraft), both companies build/maintain Mirage F1s, for further details/drawings of the aircraft and it's landing gear. I actually made a lot of progress on a 1:6.8 Mirage F1, but like Henk, work and family commitments brought the project to a halt. Also, with Henk's Mirage F1 kit already available I decided to just build his instead.
Henk is working on scale gear for his F1 kits, but this will take some time. I plan to work with Ed Dobias of RcCrafters to get some gear for mine.
Later,
Peter
09-06-2002, 07:37 PM
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MiG-21's Rule
The Mig-21 is one of the coolest jets out there, I just wish I had more time to work on mine, I need to remold it to put a hatch in it and make the MF version's spine part of the fuselage. I was planning on making a 9 foot version for the larger turbines but my new twin boys have put a hold on that for a while. my second 21 is about 75% done. The orginal 85" version. I was hoping to have it at Superman this year but that won't happen either. Now I just bump into it in my work shop.
John Carlson
John Carlson