In the late 1950s, the Soviet Air Force was seeking a
jet-powered replacement for its fleet of piston-engined trainers, and this
requirement was soon broadened to finding a trainer aircraft that could be
adopted in common by Eastern Bloc air forces. Aero's response, the prototype
XL-29 designed by Z. Rublič and K. Tomáš first flew on 5 April 1959, powered
by a British Bristol Siddeley Viper engine. The second prototype was powered
by the Czech-designed M701 engine, which was used in all subsequent
aircraft.
The basic design concept was to produce a
straightforward, easy-to-build and operate aircraft. Simplicity and
ruggedness were stressed with manual flight controls, large flaps and the
incorporation of perforated airbrakes on the fuselage sides providing stable
and docile flight characteristics, leading to an enviable safety record for
the type. The sturdy L-29 was able to operate from grass, sand or unprepared
fields. Both student pilot and instructor had ejection seats, and were
positioned in tandem, under separate canopies with a slightly raised
instructor position.
In 1961, the L-29 was evaluated against the PZL TS-11
Iskra and Yakovlev Yak-30 and emerged the winner. Poland chose to pursue the
development of the TS-11 Iskra anyway, but all other Warsaw Pact countries
adopted the Delfin under the agreements of COMECON.
The L-29 was operated by literally dozens of air forces
and is still equipping a handful. A considerable number are being operated
as warbirds.
I
am not sure with whom AMK is associated or if it is a start-up
company, but it is made in China and the company itself is based in
Macau. The molding on the kit is first rate with the now to be
expected engraved
detailing and plethora of sunken rivets/screws. I
found absolutely no molding glitches, not even ejector pin marks
inside gear doors.
The
kit includes a photo etch fret that interestingly, does not include
a set of seat harnesses. These bits are for the belly antennas,
speed brake hinges, and the detail inside the flap housings on the
wing. Clear parts are very clear and include things like
landing lights and the blast shield in between the front and rear
seats. I like that the canopy sections include the framework,
something a few new kits have done separately.
Cockpit s well appointed with two nicely done bang seats, separate
control sticks, the ejection rails for the seats, raised console
decals and decals that provide dial detail for the two instrument
panels. The kit offers a nose cover that can be built open to show
the various electronics and pressure bottles stored there. No intake
trunking is provided but there is a full exhaust section that
includes the final compressor face.
Flaps can be molded open or closed with, as mentioned, etched brass
detail for the inside of the flap wells. Both the main and nose gear
wells are nicely detailed with the nose gear well being part of the
nose detail assembly. I like that for the main gear, the wheels and
tires are separate parts, making painting much easier. While the
ailerons are fixed in place, the elevator and rudder pieces are
separate. Speed brakes can be posed
open or closed. You can also
pose the two canopies open or closed as you so wish. They are very
clear so any detail in the cockpit will be easily seen. Two drop
tanks are provided for under the wings. AMK has already opened the
holes for these so if you choose not to use them, you will need to
fill these holes.
Instructions are very nicely done and in full color. The paint
information is in Gunze and where applicable, FS 595 references.
Markings are provided for seven aircraft in a variety of camouflage
and markings schemes. Two are Czech, with one each for Russia,
Slovakia, East Germany, Iraq and Indonesia. The decals are superbly
printed, crisp, and very colorful. I anticipate an aftermarket sheet
or two on this plane since they did fly with so many nations.
For this one, I began by first painting all the interior bits, wheel
wells, inner gear doors and the nose compartment with dark gull grey as
recommended in the instructions. I also glued together the wing tanks
and horizontal stabilizer bits. Next I painted the exhaust pieces with Alclad II 'jet exhaust' as these would soon be hidden in the fuselage
when the halves were closed. The instrument decals were next and this
led to a bit of a surprise. The black outline to each panel is not
permanent and breaks into tiny sections when wet. Each panel
decal is
actually 3 or 4 sections and getting those on without some of the
outline bits attached is nigh near impossible. You have been warned!
Also, the working time on these decals is rather short as the glue on
the paper backing soon goes away making the final bits difficult to
remove from the sheet.
With all that done, I started assembling the various bits for the
cockpit. For the rear seat, you have to remove the rails on the upper
portion of the seat and the angle sections from the top of the seat
rails. Be sure to have the grooves facing inboard on the seat rails as
the aft seat has some small panels that have to be glued in place. I
then attached all the bits for the nose compartment (though not the
landing gear). This compartment, the interior and the exhaust section
were then glued into one fuselage half.
Kit instructions state that 15 grams of weight is needed and to put it
under the cockpit. Well, I saw no way to put that much weight under the
cockpit so put 14
grams
just behind the cockpit assembly and 3 grams under the cockpit. I then
taped the fuselage halves together as well as the wings and the
horizontal stab. Even without the flaps, elevator and rudder, it was
barely nose heavy. I then filled nearly all the remaining openings under
the cockpit and that seems to have been enough. I glued the clear blast
shield to the other fuselage half and when dry, the fuselage halves were
glued together. I used super glue for the seams and a pair of sink areas
I found on the underside.
The next thing I did was to
attach the small etched pieces in the flap area. Naturally, I managed to
lose a couple of the tiny one (which is one reason I am not fond of p.e.).
Actually, they fit in the slots quite tightly, making it easy to simply
add a touch of superglue to them once in place. It is getting them there
via tweezers that causes me issues!
Anyway, with those in place, the wing halves were glued together and the
engine intake trunking installed. These stick out a lot more than you'd
think so test fit the wings before the cement dries to be sure you have
them at the proper angle. I glued the elevator to the horizontal
stabilizer with the elevator angled up. I looked at literally dozens of
photos of L-39s parked on the ground and found this feature to be pretty
common. What I also noted was that in none of the photos were the flaps
lowered nor were the speedbrakes open. Once again, a model company gives
us options that are not prototypical, but there are probably those who
would whine if not provided. Having installed all that photo etch, I
will be building my kit with the flaps lowered.
I then glued on the rudder and horizontal stabilizer. I also said
goodbye to the painting and parts I put into the upper nose bay and
glued the cover shut. The cover required several applications of filler
as it did not fit all that well. Then I glued on the boarding steps,
masked and glued on the windscreen, masked the other two canopy bits and
tacked them on in preparation for painting. The wheel wells were filled,
the flaps simply fit into place and it was off to the paint shop.
Thanks to AMK's choice of markings, picking one was not at all easy. I
eventually settled on the Indonesian version. This required the nose,
wing and stab tips, speed bullet tip and a fuselage band to be painted
red. First I used Tamiya gloss white and when dry, Gunze red was then
sprayed over those areas. After allowing it to cure, I masked the red
parts. The rest of the airframe was painted light aircraft grey, using
Humbrol #166, which I thought was a better match than Model Master FS
16473.
Once the paint was dry enough to touch (which was pretty much overnight
thanks to thinning it with lacquer thinner), I removed the masking and
continued the build. This meant the landing gear. The nose gear is a
very complex and rather fragile-looking assembly, consisting of five
separate pieces. The attachment parts are rather frail looking and I'm
not sure how it will handle all the nose weight. This is where a
hoped-for Scale
Aircraft Conversions metal gear would come in handy,
especially if they cast this all in one piece. The main gear attachment
points, like the nose gear, are all quite scale and in this case, the
gear attaches to the rear of the wheel well, just like the real
aircraft. Of course, this isn't the strongest attachment point for a
model, so one will have to be cautious and get a good join. The
instructions would have to attach the wheels and gear doors before
installation, but frankly, that would make attaching the legs and the
retraction strut pieces quite difficult, so I left those off until the
gear was fully dry.
With the gear in place there were a myriad other bits to attach. I glued
on the wheels, being especially careful with the nose wheel as it is
rather flexy. I then glued on all the gear doors. The rear ones fit
quite well. I also glued on the flaps as well as some scoops I missed
and the rear mounted IFF antenna. The nose gear landing light was a real
pain to get in place and refused to fit on its designated location so I
fudged a bit. Also added were the under-wing rad alt antennas and the
light on the underside. The wing tip lights refused to fit and one went
flying. The instructions have you install these when you join the wing
halves. Despite the hassles of masking them when painting the wing tips,
this is a time when the instructions are right. I filled the holes with
clear paint and built it up so there would be something there. Last
items to be attached were the canopies. I did a bit of touch up painting
and tried some AK Interactive 'smoke' pigment, which looks convincing
enough. Last bits to be glued on were the wing tanks and that was it.
Overall
I have to say that I'm quite happy with the way the kit turned out.
I wish I could paint fuselage bands better, but there it is. The kit
fits quite well and while it does take a bit of patience and careful
building, the end result is a very nice looking model. I especially
like all the nice markings options that are given and I've saved the
remainder of the decal sheet and markings instructions for use on my
Planet Models kit, should I decided to build that one. It must be a
relatively popular subject as the LHS got in several of these along
with their Kfir. The L-39s were gone in a few days and the Kfirs are
still on the shelf.