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1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Sun May 03, 2015 9:24 am
by AIRFIXER
I've just received some 2D drawings (orthogonal projections) to check the dimensions and proportions before the final 3D CAD data will be generated, checked and sent to the 3D printing service (i.materialise.com).

Current state of affairs:
Image

The green parts will be separate stereolithographs. The integral windshield/canopy print will later serve as a template to vacuform the respective parts. The fuselage itself comes in two halves. Once "drawn", the surfaces will require some finishing and the 0.5mm recessed structures some subtle rescribing.

To be continued...

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Sun May 03, 2015 9:37 am
by nathant
Neat. Is the whole forward fuselage of the kit messed up on the ML version?

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Sun May 03, 2015 4:16 pm
by AIRFIXER
As to dimensional accuracy, surface detailing and overall fit, I wouldn't rate the Trumpeter MiG-23s, both 32nd and 48th scale, bad kits. If you want to build a quarterscale M/MF, go and get yourself the big Ciro Model correction set, sand the radome into shape, correct the cockpit sill's way too steep inclination, and Bob's your uncle. It looks pretty much like a MiG-23M/MF.

ML/MLD - different story.
The entire fuselage between fuselage station 1 (aft of the radome mount) and 6B (running below the windshield) was completely redesigned to accomodate the slightly larger (in diameter) radome with its distinctive nose droop.
On earlier MiG-23s, the entire section between windshield and radome was tapered all around. On the MiG-23ML/MLD, however, the flanks and lower fuselage contour run straight away towards the radome, the lower contour resulting in a subtle "kink" where the IR sensor sits. In this regard, an MF would be as identical to an ML as a YF-16 to an F-16A.

Trumpeter once again took the easy way on their ML/MLDs by adding a few panel lines to the forward portions of otherwise unchanged fuselage halves and enclosed a new, way too long and oddly shaped radome. It simply doesn't look right...

Other issues are sort of "inherited" from previous releases; cockpit sill way too steep; the sill should run almost parallel to the fuselage datum line. Windshield too short, too steeply inclined as well. Canopy longitudinally way too bulged - the upper profile actually runs rather flat. Intake faces' cross section inaccurately reproduced, though I wouldn't deem that as critical. As is, and personally speaking , the Trumpeter ML/MLDs are like a girl with a perfect-10 body and a fairly deformed face. Or in the context of sexual equality: putting John Cryer's head on Hugh Jackman's body. Accordingly, I decided to design an all-new corrected forward fuselage.

Editor's note...
My key criterion in assessing a kit's "accuracy" is shape: "Does it look right?" It may be one or two millimetres off, but it may still look right (to me).

The MiG-23 is far and away my favourite jet aircraft and I've been waiting for many years for a state-of-the-art kit.
Correspondingly, I'm biased and demands are high. Or in the given case, if it doesn't look right, I will make it look right in such a way, that it will finally meet my personal requirements - it's just one of the problems you're facing, if you're both ambitious and very familiar with a particular aircraft. And I want to have at least two finished Flioggers in my cabinet before I go west.
:wink:

Erik

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Mon May 04, 2015 1:05 pm
by Thomas_M
Erik, are you going to accept orders for such a conversion set? Or is there a shop that will sell this (your?) set?

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Mon May 04, 2015 2:07 pm
by AIRFIXER
No such plans, Thomas. It's a 100% private venture.

Following the good old Radio Yerevan jokes, I'd say "In priciple, yes. But..."
Offering a stereolithographed correction set would be too costly. A single set would have a 120€ price tag - production costs only. Beyond, and in either case, each set will require some refinishing - removing the supporting structures, sanding and subtle rescribing of recessed surface details. Something I wouldn't want to burden fellow modellers with.

Marketing the set for a reasonable price would require an entirely different approach:
Producing 3D-printed masters, making rigid silicone moulds from the masters and casting the parts in resin.
Rule of thumb estimation of the preprodction costs: 600-700€ (exclusive time). Courtesy of my wallet...
Not necesseraily meaning it will work out that way, eventually ending up with satisfactory results...

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Mon May 04, 2015 2:41 pm
by mostrich
AIRFIXER wrote:(...)
The MiG-23 is far and away my favourite jet aircraft and I've been waiting for many years for a state-of-the-art kit.
Correspondingly, I'm biased and demands are high. Or in the given case, if it doesn't look right, I will make it look right in such a way, that it will finally meet my personal requirements -one of the problems you're facing if you're both ambitious and very familiar with a particular aircraft. (...)
I'm with you, Erik. I won't call myself a rivet counter, but in case of the Fw 190 I'm familiar with all its sub variants and so my 190-projects turn out to 90/10 prep and research to build desasters... :giggles:

Re: 1/48th MiG-23ML/MLD fwd fuselage correction

Posted: Mon May 04, 2015 3:09 pm
by AIRFIXER
"Ignorance is a bliss."
:bag:

:wink: