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MiG-21 BIS - WHAT´S CHANGED, WHAT´S NOT
Nose areas of MiG-21BIS (above), MiG-21MF (below).
difference in the rest of the nose area. The other
ve members of our party had the same trouble.
Later, we saw the difference when we projec-
ted the dimensional data into the computer mo-
del. Nevertheless, the identied difference is so
small, that we deem it too marginal for a 1/48th
scale model.
You know our reason for our decision to keep
the generic fuselage for the BIS and MF versions.
We decided to concentrate our effort to more
apparent and signicant changes, specically
for the BIS. You have the right to criticize the
decision now, but it is important to bear certain
facts in mind to remain constructive: the diame-
ter divergence in the point of the top amounts
to 0.38mm, on a 20.3mm diameter, with a total
fuselage length of 257mm. If you let these num-
bers sink in a bit, the whole restorm just begins
to look like a good joke. Guys…all of this stems
from very intense research, and this is reec-
ted in the design of what amounts to a very
good end product.
Finally, I must point out the fact that
I essentially compared the real aircraft di-
mensions, scaled to 1/48, to our 1/48th
scale generic BIS/MF fuselage, not the
real MF and BIS fuselage dimen-
sions. It is also necessary to note,
that our 1/48th scale MF fuselage
is not absolutely correct in the
nose section, because it is a tee-
ny bit fatter in this section than it
should be. It is interesting to note
that no reviewer, especially those
so passionately griping about our
BIS nose, has picked up on yet, which conrms to
to me, that such dimensional deviation is frankly
marginal at best, and is in fact invisible without
exact measurement verication.
The above text sounds very positive for us, ri-
ght? Well, to be absolutely honest, we have the
wrong base for the AoA indicator, a
result of the rejection a the separate
BIS fuselage idea. The difference is not
so obvious here either, but we picked
up on this a little too late to implement.
Sorry!
With respect to the perforated cone area,
this is still something of a technical mys-
tery to us, as to how to incorporate this
feature onto plastic. We decided to
have this perforation as part of the
photo-etched detail set in Eduard
Photo-etched line.
FUSELAGE SPINE AND VERTICAL TAIL
FUSELAGE SPINE & VERTICAL TAIL, YES:
1. SMALL FAIRING BEHIND THE CANOPY
ON THE LEFT SIDE OF THE SPINE
2. RECTANGULAR FAIRING ON THE RIGHT SIDE
UNDER THE BASE OF THE VERTICAL TAIL.
3. TOP OF THE VERTICAL TAIL ON THE UHF
ANTENNA COVER AREA (BIG TRAPEZOIDAL
PANEL USUALLY PAINTED ‘APPLE CART’ GREEN)
FUSELAGE RIDGE & VERTICAL TAIL, NO:
1. SCREWS ON THE TOP OF THE SPINE
BEHIND THE CANOPY.
photo: Gábor Szekeres
MF MFMF
BIS
BIS
ŠULC
ARCHMAN
BIS
BIS
BIS
BIS
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CHANGES
BIS
BIS
BIS
?
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Info Eduard - December 2011