In 1937, Dr. Claude Dornier patented the unique design of a "push-me,
pull-you" power system for a combat aircraft. However, it wasn't until
1942 before the German High Command authorized development of this radical
design.
In many respects, the Do335 is fairly conventional design employing
a low-mounted wing, tricycle landing gear, and a relatively low frontal
cross-section for reduced drag. The fact that the aircraft was powered
by a Daimler Benz DB603 engine in the nose, modified to allow a 30mm cannon
to fire through the spinner, was also nothing radical. It was just the
other DB603 in the tail, which drove a second, 'pusher' propeller that
was new.
While the Do335 was evidently not available for combat duties before
the end of the war, flight test results had shown the promise of this
design, and design variants were already underway. These included a two-seat
night fighter and a fighter-bomber version with a payload of 1000kg of
bombs at high speed.
Performance data for the Do335 showed that it had a level top speed
more than 40 mph faster than the P-51 Mustang, and despite the twin-engine
design (and associated weight), the Do335 possessed the same agility of
its single-engined contemporaries. For air-to-air firepower, not only
did it have the 30mm cannon firing through the spinner, it also had two
20mm cannons mounted over the front engine. The Do335B carried two additional
cannons, one in each wing.
For survivability, the Do335 incorporated several innovations. In the
event of a landing gear problem, the ventral fin could be jettisoned before
attempting a belly landing. On the other hand, if bailing out of the aircraft
was the only option, the aircraft was equipped with an ejection seat.
Provisions were also underway to allow for jettisoning the rear propeller
as well.
The jet-age had all but rendered this concept obsolete for a combat
aircraft. Even Dornier's designers foresaw the promise of jet power and
had provisions for a Do435, powered by a piston engine in the nose and
a turbine engine in the tail (this wasn't a unique idea, Ryan was already
working on the same type of power combination in its FR-1 Fireball for
the USN.
This innovative piston-powered tractor/pusher system would not reappear
until Cessna's Skymaster series. Since then, only a handful of prototypes
and unique aircraft, like Rutan's round-the-world 'Voyager' have also
embraced the centerline thrust concept.
The
Kit
Tamiya's latest release is molded in medium-gray plastic, features engraved
detailing throughout the external surfaces, and is flash-free. The kit
is comprised of 106 grey parts and 5 clear.
There are some small ejector-pin marks inside both maingear wells that
will be difficult to remove without destroying the nice details molded
inside. All of the landing gear
doors and the inside of the weapons bay doors are also plagued with ejector
pin marks. These will also be a bit of a challenge to remove without damaging
the surrounding details.
The kit features a nicely executed cockpit, complete with ejection seat,
an accurate Y-styled control column, a nice instrument panel and rudder
pedals.
The fuselage is molded in such a way that the two-seat variant will
also be available in the near future. In fact, two pilots are included
in this release (you'll only need one this time).
The
weapons bay is also laid out nicely, and includes the bomb cradle and
1000 kg bomb. The layout of the cockpit floor and weapons bay bulkheads
is very similar to the way Tamiya crafted their 1/48 Mosquito, so assembly
should be tight and flawless.
Given the volume of plastic aft of the main landing gear, this model
would be a definite tail-sitter if not for the steel ballast that Tamiya
also includes in this kit.
The
landing gear detailing is likewise nicely done, though in a reversal of
trends, Tamiya did not include flattened tire options in this kit. We'll
have to simply sand down the round wheels or locate a set of Squadron's
True Details Do335 Resin Wheels (Part Number 48064).
Markings are included for Do335A-0 VG+PH (W.Nr.240102), Do335A-0 (W.Nr.240107),
and Do335A-1 #1-3 (W.Nr.240161). If you want to do an interesting variation,
VG+PH was used for flight evaluations by the US
before being stored away in the Smithsonian's Silver Hill restoration
facility. This would entail some field-applied 'cover-ups' of the German
markings and application of USAAF insignia. By the way, VG-PH was rescued
from Silver Hill with the help of Lufthansa and some private donations,
restored, and is now on display in a museum in Munich.
Conclusions
I am a bit disappointed with the number of ejector pin marks on this
kit. This is not the usual situation with Tamiya kits to date. The loss
of flattened wheels is unfortunate as well. Nonetheless, this kit will
build into a great version of the single-seat Do335, and I can't wait
to tackle the nachtjager two-seater in the future. I can recommend this
kit for virtually any skill-level builder.
References
Dornier Do335 "Pfeil", Heinz J. Nowarra, Schiffer Publications,
1989