The Martin Baltimore was a further development of the Martin Maryland.
While keeping the same design layout, the Baltimore was heavier,
roomier
and was powered by larger engines than the Maryland. The first of these
was flown in June of 1941 and deliveries of 50 Baltimore I's and 100
Baltimore II's began soon after with the first reaching Britain in
October of 1941. Early models featured an armament of eleven 30 caliber
Browning machine guns, four in the wings, two in the rear dorsal
position (an open position in early models and a turret later), one in
the ventral hatch and four mounted in the belly mounted at an angle to
the rear as "scare" guns. The Mark I's were retained for use in
training squadrons while the Mark II's went to squadrons.
The bulk of the first order was made up of Mark III's which featured a
Boulton Paul hydraulically operated dorsal turret fitted with four 303
Brownings of British manufacture. The Lend-Lease aircraft, which had to
be initially ordered by the U.S. Army Air Corps, were given the
designation A-30, though all were delivered to the RAF. The first of
these was the Mark IIIA which differed from the Mark III in featuring
an electrically operated Martin dorsal turret of reduced profile
containing a pair of 50 caliber Brownings. 281 of these were delivered
followed by 294 A-30A's or Mark VI's which were similar to the IIIA.
The entire final order of 600, known to the Army Air Corps as A-30A's
but to the RAF as Mark V's featured 50 caliber wing guns and more
powerful Wright R-2600-29 engines. The first of these appeared in
December of 1942 and when production ended in May of 1944, 1,575
Baltimores had been built. Most of these were delivered directly to the
Middle East. Pilots generally liked the Baltimore, the main complaint
being that its narrow fuselage prevented crew members from being able
to move around during flight and more drastically made it almost
impossible for another crew member from taking over the controls should
the pilot be wounded. This was also the same problem that was found
with the Douglas Boston / Havoc series.
The
Kit
The Classic Airframes
kit
comes in a two part top open box typical of Classic Airframes with nice
artwork of a Baltimore flying over the pyramids. Inside the box there
is a large zip lock bag containing all but the clear parts and a
smaller bag with those. Inside the large bag is a smaller bag
containing the resin parts. The parts are molded in what has become
typical for CA a blue gray plastic. The parts feature recessed panel
lines that are fine and uniform. The parts have a semi gloss to flat
finish and there is some light flash on some of the parts. The control
surfaces are all fixed and feature very nicely rendered fabric detail.
Looking over the air frame parts I found no sink holes or other surface
blemishes. The kit can be made up as either an early model with an open
gun position or the later version with the Martin turret. The "scare"
gun locations are recessed into the rear fuselage and these would need
to be filled if building the later version. While the turret is nicely
rendered with resin parts only the guns are provided for the open
position which could use some additional detail. The main gear bays are
boxed in with a rather unusual piece that gets folded and dose have
some nice detail molded into it. The gear doors also feature recessed
rivet detail which is a nice change from ejector pin marks found on
many kits. The only ejector marks that will need to be addressed are
some towers on the inside of the fuselage. The props are the "build
them yourself" style which feature plastic blades and nice resin hubs.
The interior is very nicely done with a combination of plastic and
resin parts and even includes the radio operators position which will
all but disappear when the fuselage is closed. I would strongly suggest
replacing the tail wheel strut with a piece of brass or other suitable
wire as the supplied part is very delicate looking. It can be seen in
the forth photo down between the two fuselage tail sections. Altogether
there are 71
parts molded in gray. See photos below.
The resin parts supplied include both engines with separate cylinders,
propeller hubs crew seats, guns, cockpit side consoles, engine air
intakes, wheels, oil cooler inserts and instrument panel. The
instrument panel has some nice raised detail but no film or raised
parts for the instruments, just recesses which could use some
instrument decals in them. All these parts are molded in a dark gray
resin and were free of any bubbles or short shots. A couple pieces had
some light flash but it should clean up easily. altogether there are 53
resin parts. See photo below.
The clear parts are thin and relative clear and should look great after
a coat of future. The frame lines are raised which should help in
masking. There are a total of 10 clear parts for a kit total of 134
parts. See photo below.
The decals are very nice looking, thin, glossy, in register and the red
looks correct for British markings. The sheet provides markings for
four aircraft, one early and three late model. Two are in typical
British desert colors, one all black and one in RAF Coastal command
colors. See photo below.
The instructions are printed on
two 8
1/2" x 14" size sheets printed on
both sides and folded to create 8 pages. The first page has a brief
history and specifications, the second page has an icon chart, paint
color key giving paint names only, and a parts map. The remaining pages
cover assembly. There is a separate sheet 8 1/2" x 11" that has the
marking and camouflage information. It should be noted that the engine
assembly instructions are in error. It has you assembling the back row
of cylinders with the connecting rods facing the front of the engine
which is wrong, they should face towards the rear.
Conclusions This looks to be a
really nice kit of a much overlooked aircraft. Like all
Classic
Airframes kits one must take the time to clean up and test fit
parts
before assembly but most reports indicate there are not major
fit
problems to deal with. That was easy to say but not the case
in my
situation anyway. I suggest reading my build log. I would
recommend the kit to only experienced modelers with a
lot of
limited run kit experience.
Links to kit
build or reviews A build / review can be
found here
and an in box review here.
References Profile Publications #
232 Martin Maryland and Baltimore Variants by Christopher F.
Shores
As
with most aircraft the logical
place to start is the cockpit and interior as this needs to be done
before the fuselage can be assembled. This kit is no different. As I
had been forewarned that the various bulkheads were all over sized I
decided to address them before adding any of the small detail parts,
so
diverging from the instructions I assembled all the floors and
bulkheads into one assembly, let it thoroughly set up then sanded
every
thing to fit. I found that most of the bulkheads had a taper on the
edges to facilitate easy removal from the molds and I found that in
most cases sanding the edge till it was flat provide the relief
necessary to fit the fuselage. Once I was satisfied with the fit in
the
fuselage I added all of the seats, consoles and other various details
supplied for the interior. I added some PE levers from my spares box
as
I thought it would dress things up a bit. The pilot's seat location
was
a bit ambiguous on the instructions so I used a pilot figure to
position it height wise. From the instruction sheet it looked like it
was setting on the floor but at that level the pilots eyes would have
been below the instrument panel. I added a few instrument decals to
the
instrument panel and high lighted the raised detail with a silver
pencil. Seat belts and harnesses also came from the spares box. Once
every thing was installed I gave the visible interior parts a sludge
wash and it was ready to be inserted in the fuselage. See photos
below.
One of the things I found after taking the above photos was that there
were glazings to fit into the openings behind the pilot. This makes
sense as it would otherwise become quite drafty, especially on the
versions with an open gun position. The instructions do not mention
them at all. One side seemed a bit larger than the other and one piece
seemed to fit better in one place than the other. I glued them in
place
with clear parts cement then brushed them with future after they
dried.
As usual when I went to assemble the fuselage I found that the entire
interior assembly seemed too long. If I positioned the rear bulkhead
for the
radio room in a position to allow the turret to fit then the pilots
rear bulkhead sat forward of the fuselage opening and the floor for
the
bombardier extended out beyond the edge of the nose glazing. It
appeared that the best fix for this would be to break the connection
where the pilots rear bulkhead met the radio room floor and reglue it
about an eighth of an inch back from where it was. This seemed to take
care of that issue. There are no locators for the interior on the
fuselage walls so I positioned it where I thought it should go and
held
it in place with some silly putty and used some five minute epoxy to
attach it to the fuselage. Once this was set I glued the fuselage
halves together. There was a gap around the top of the pilots rear
bulkhead that would show through the canopy so I filled it with some
Magic Sculpt and when dry painted it.
From August of 2008 till
early in 2015 this kit saw only occasional attention due to a number
of
factors but mostly due to frustrations with short comings of the
kit.
While one expects some difficulties to be encountered with limited
run
kits this one seem to be just one thing after another making it
difficult to maintain my interest in it.
The fuselage and wing assemblies were relatively uneventful although
I
should have checked the cockpit and nose glazing before hand as they
were both too wide and it would have been easy to add a spacer
between
the halves if I had. The wings and tail were both just butt joints
but
there was a lot of surface area there and I chose not to uses pins
to
strengthen these joints and once glued I had no issues with them.
One issue that was not all that uncommon but seemed to occupy way
more
time than it should have was fitting the engines into the cowlings.
I
spent a lot of time painting and detailing the engines only to find
they were too large to fit the cowlings. The choices were to grind
down
the cylinder heads or grind away the insides of the cowlings. Since
I
couldn't bring myself to grind the nicely detailed engines I chose
the
latter. Fortunately the cowlings were thick and there was little
danger
in breaking through them. It did require a lot of time to remove the
necessary material even using a Dremel tool. One needs to be
somewhat
careful with this step as the only thing that the cowlings attach to
is
the engine cylinders. Grind away too much and you'll have other
problems to deal with. By the time I got both engines fit as best I
could I had again tired of the kit and it went back on the shelf.
Early in 2015 I started working on the smaller Maryland kit by
Special
Hobby and forced myself to get back on this I immediately ran into
more
issues with the engines and cowlings. The engines glue to a blob of
plastic that spaces it out from wing the correct distance.
Unfortunately there is no index tabs or any other reference for
mounting the blob to the wing, just a flat surface against a flat
surface. I managed to get one engine correctly located but ended up
gluing and removing the other three times and still didn't get it
dead
on but that issue didn't show up till later. A large engine intake
scoop needs to be mounted to the top of the cowling and there were
index marks for this on the cowling and the intakes actually fit
pretty
good considering some complex geometry. When it came time to mount
the
cowlings I found that the intakes did not align well with the
balance
of the intake trunk located on the wing. Part of this was due to the
earlier engine mount routine. It took a lot of fussing and fitting
to
get it all close but again the slight misalignment of the one engine
bit me when I mounted the oil cooler below the engines. The visible
part of the coolers were not the same from side to side but at this
point I had had enough of this silliness and left it as it was. I
also
spent a lot of time fiddling with the clear parts and was never
totally
satisfied with the final fit. Even the landing gear attachment
was poorly designed and fit was problematic and a pita to get the
fit
right. Never the less I did finally finish it. The last throws of
assembly were not well documented. In any event it was finished, the
completed photos follow.
For the most part I like Classic Airframes kits but this one seemed
to
be the bane of my existence and was not a fun build but in the end
it
came out OK, not great but OK.