ALEXANDER ENGEL 212 Assembly & Operation Manual
Item No. 1599
212
Assembly & Operation
Manual
Parts List
Since 1952
Please read the following building instructions and safety warnings carefully
BEFORE commencing with assembly of kit and installation of technical equipment.
Please also refer to the safety guidelines on page 38.
WARNING!
During the charging period all batteries must be removed from the hull. NEVER
charge the batteries within the hull as most regular lead batteries gas while being
charged. Insufficient air circulation during the charging period may lead to a
serious EXPLOSION!
Please adhere to your country’s safety guidelines during construction and operation of this item.
We are not liable for any personal injury or damage of any kind resulting with the
assembly and/or use of our products as we are neither able to delegate nor verify
the assembly and/or use of these items.
We reserve the right to alter technical specifications.
Copyright ©2011 ALEXANDER ENGEL KG Bi1599 v1-11 All rights reserved.
www.modelsubmarines.com
ALEXANDER ENGEL KG
Quality Model Kits & Accessories since 1952
P.O.Box 1133 D-75434 Knittlingen • Germany • Phone: int.+49 (0)7043-93520 Fax: int.+49 (0)7043-31548 • Email: info@engel-modellbau.de
Submarine Class
212
Item No. 1599
Bi1599 v1-11
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Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Part A 1. Battery Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2. Installation of Cables and Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3. Mounting and Connection of CTS to Piston Tank . . . . . . . . . . . . . . . . . . .7
4. Centre Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5. Servo Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6. Main Drive Battery and Arrangement of Wire Leads . . . . . . . . . . . . . . . .13
7. Receiver Battery and Arrangement of Wire Leads . . . . . . . . . . . . . . . . . .14
8. Installation of Speed Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
9. Power Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
10. Central Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
11. Charge Lead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
12. Joining of Servo Block, Centre Section and Piston Tank . . . . . . . . . . . . .17
13. Installation of Steering Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
14. Main Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
15. Main Bulk Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
16. Push Rods and Linkages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
17. Bayonet Lock Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
18. Receiver, Speed Controller, Servos and Pitch Conroller . . . . . . . . . . . . .28
19. Initial Launch of CTS with Piston Tank . . . . . . . . . . . . . . . . . . . . . . . . . . .29
20. Joining Tech Rack and Hull . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Part B 21. Control Planes at Stern, Dive Planes at Sail . . . . . . . . . . . . . . . . . . . . . .30
22. Hull Ridge, Bilge and Side Keels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
23. Main Ballast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
24. Revision Opening and Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
25. Propeller and Spinner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
26. Conning Tower Mechanism (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Part C 27. Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
28. Trimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Part D 29. Paintwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
30. First Voyage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
31. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
32. Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Part Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
This symbol indicates that after the service life of this electrical
device has ended it must be disposed separately from domestic
refuse at your communal waste collection.
The 212 class has become increasingly popular since its release, this is true for the original boat as well as the miniaturised
model.
This new ENGEL submarine offers besides radial parting with bayonet lock ring and Tech Rack© very compact dimensions
and easy handling. Hull, sail and all other attaching parts are highly detailed. The Tech Rack© slides into the front part of the
hull offering easy access to most of the boat's internal components.
Building is straight forward and quite simple as all parts are prefabricated . Hull, bayonet lock rings, control planes and hull
attachments are cast in resin and require little to no adjustment. The Tech Rack© is constructed of sturdy CNC-machined,
interlocking parts, reinforced with ready-made brass bars. Piston Tank included features AutoStop, meaning that the piston
drive will automatically stop at an instant as soon as the tank is completely filled or emptied. Piston Tank and electronic switch
unit CTS are both fully built forming a compact unit without extensive and frail wiring.
Hull unit, bayonet lock ring, control planes and main bulk head are all cast in resin. Except for the control planes, all other
resin cast parts should be glued with a slower setting two-component adhesive such as 1-Hour Epoxy (item no. 9507).
Consistency of adhesive can be adjusted by adding a filling agent such as Micro Balloons (item no. 9567). This combination will set after about 1 hour. Full adhesive strength will be reached after 12-24 hours.
Less demanded joints can be glued with Cyano (also called CA or Superglue). A bottle of high, medium and low viscosity CA
is available as set (item no. 960246). All surfaces to be bonded must be thoroughly cleaned with white spirit or thinner.
Dive Set with Piston Tank and CompactTankSwitch CTS
The 212 is equipped with a Piston Tank type EA500-123 in 12 Volt featuring AutoStop. This ensures that the piston drive will
automatically stop at an instant as soon as the cylinder is fully filled or empty.
CompactTankSwitch CTS and Piston Tank form a compact unit. The CTS can be operated via a control stick or a 3-position
switch (on-off-on) on the transmitter.
The CTS is fitted with high amp PROFETs offering excessive power reserves. The CTS can easily cope with a stalled Piston
Tank motor for several minutes without any damage.
This compact unit offers all necessary fail-safe features such as
• Low Battery Monitor
• Loss of Transmitter Signal
• Optional Automatic Resurfacing if model dives below approx. 1.8 m
If voltage drops below a preset value (factory setting approx. 9V for 12V operation) the Piston Tank is automatically switched
to empty. This so-called threshold voltage can be adjusted via the potentiometer on board of the CTS. However, a regulated
power supply is recommended to achieve an exact setting. Turning the screw of the potentiometer (slowly!) in clockwise
direction will increase threshold voltage, turned anti-clockwise will decrease this value.
With battery voltage already lower than threshold value when system is powered up will lead to deactivation of this safety
device. This mode is indicated by the red LED flashing. However, the CTS will be in service despite low voltage. This mode
will prove helpful for verifying correct direction of flow of the Piston Tank.
If the receiver signal is lost - due to increased depth or other circumstances - the CTS will also switch to "blow" (empty) the
Tank.
With the Pressure Switch connected, maximum depth is limited to approx. 1.8 meters (6 ft). If the model dives below this
level, the CTS will automatically switch to the "resurface" and empty the Piston Tank. The model will then resurface unless
the switch is set back to its upper position. Otherwise, with the switch left at "submerge" the model will emerge to a depth
above 1.8 meters after which the Tank will start filling again (and so on). Furthermore, the Pressure Switch acts as a second
safety device. Should the over pressure which builds-up within the hull while submerging (by filling the Tank) be lost due to
a leakage, the "submerge mode" will be terminated. In this case, the red LED blinks steadily, and the system does not allow
the model to dive again until this has been corrected.
Functional Principle of Conning Tower Mechanism (optional, item no. 1599-1)
This mechanism drives periscopes, radar, snorkel and antennas in- and outwards of the conning tower.
When the model submerges, i. e. Piston Tank is filling, the pressure within the model increases. At about 80% filling volume
the pressure within the boat activates piston movement in a cylinder built into the mechanism. This movement moves a slide
into the conning tower on which the devices are mounted.
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As soon as the submarine re-emerges to the water surface the pressure within the model decreases (as the Piston Tank
empties), whereby periscopes, radar, snorkel and antennas retract.
The mechanism also serves as safety indicator. Should the model suffer a leakage during its dive, the over-pressure within
the boat will decrease forcing the conning tower mechanism to extract. A clear indication to bring the model back safe to
shore and check for a possible leakage. This mechanism is fully-built, ready-to-run unit and requires no further assembly.
The manual is divided in three main sections A, B and C. Part A describes assembly of the Tech Rack, thus, the internal setup
of the model. Part B is devoted to hull and its adjoining parts, part C to ensuring leak tightness and basic trim. Part D gives
a short outline on painting and finish of the model. This conclusive part also gives some hints on the boat's maiden voyage
and further servicing.
Please also refer to the part listing at the end of this text. This listing is sorted by part group. The separately held packing list
is sorted by pack numbers.
Further items required/recommended to complete this model:
• Conning Tower Mechanism for retraction of periscope, radar and antennas, item no. 1599-1
• Wire and Connector Set, item no. 1599-99
• Battery Pack High-Power NiMH 12V/3500mAh + Receiver Battery NiMH 4,8V/3000mAh, item no. 5556
• Boat Stand made of Polycarbonate, aluminum and stainless steel, item no. 1599-Z
• Pitch Controller DLx for X-rudders, item no. 1573
• Electronic speed control Rookie 20, item no. RO8400
• Servo FS 500 MG, item no. RO8431 (only this servo will fit, requires 2)
• 1-Hour Epoxy 224 g, item no. 9507
• Micro Balloons, 250ml, item no. 9567
• Rapid CA superglue set, 3x 20g, item no. 960246
Adhesives and Lubricants:
• 1-Hour Epoxy, item no. 9507
• Micro Balloons, item no. 9567
• Rapid CA Superglue Set, item no. 960246
• CA Accelerator, item no. 96200
• Q-Lube, high-performance adhesive lubricant, item no. 9705
• TITAN Grease, item no. 9707
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1. Battery Compartment
1.1 Assemble compartment from two side parts T3, one bottom
part T4 and bow bulkhead T1. Cut-out in bottom part lies against
pre-fitted bulk head of Piston Tank (for clearance of screw in end
cap of tank).
NOTE: Assemble parts DRY - DO NOT GLUE. Verify correct
arrangement and orientation of bow bulk head.
1.2 Glue with medium viscosity CA (item no. 96040). Apply glue
on front face of side parts as well as on bottom part. Remove
excess glue IMMEDIATELY with pointed blade.
1.3 Glue carrier T2 (for Pressure Switch) to bow bulk head.
1.4 Glue completed section against pre-fitted bulk head of
Piston Tank.
NOTE: Apply CA very sparingly to avoid gluing of bulk head to
end cap of Piston Tank. Otherwise parting of section and disassembly of Piston Tank will become difficult or even impossible.
Part A
The Tech Rack is built from CNC-milled plastic parts, brass bars and the Piston Tank. The Rack is divided in four sections.
First, the battery compartment, which takes the two main batteries as well as the receiver pack. The carrier for the Pressure
Switch is fitted in front the compartment's bulk head at bow. Second, the Piston Tank with switch unit CTS, with the necessary bulk heads factory-fitted to both ends of the tank. Third, the so-called Centre Section accepting receiver and power
socket. Fourth, the servo block, consisting of two bulk heads and a mounting plate for the speed controller.
Battery compartment and Piston Tank will form a single section after assembly. This section can be parted again by unscrewing three bolts in the tank's front bulk head. Piston Tank and Centre Section should be joined at an advanced building
stage; that way merging of hull section and Tech Rack will prove less difficult.
Before you start with the assembly we highly recommend to build a simple stand for your model. A professionally made boat
stand for the 212 is also available as an option (item-no. 1599-Z). Cover the stand with cling film or cloth.
Another helpful option is the power socket with main plug located in the Centre Section. All electric components can be switched off simply by pulling a single plug. In addition, the power socket also serves as charging socket for both main and receiver battery. Wire and Connector Set, item no. 1599-99, includes all wires and connectors for this kit (complimentary to
Battery Pack item no. 5556).
T3
T4
T3
T1
T2
PS
T1
T2
+
1.5 Push Pressure Switch in carrier T2 and check for good fit.
1.6 Accessibility of screws in Piston Tank bulk head is given by
three corresponding holes in bow bulk head (see picture).
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2. Installation of Cables and Tubes
2.1 Insert three brass tubes, outer dia. 7 mm, which are two
parts S6 with length 249 mm and one part S7 with length 332
mm into the bores of both Piston Tank bulk heads as shown.
2. 2 Insert brass tube S8, outer dia. 3 mm, length 332 mm, into
the corresponding bores of both Piston Tank bulk heads as well
as bow bulk head. This tube connects to Pressure Switch via
silicone tubing X2; cut to length of approx. 48 mm. Push both
ends of tubing about 6 mm onto Pressure Switch and brass tube
S8.
2.3 Cut PVC tubing X1, outer dia. 9 mm, to 275 mm length.
Push onto nozzle in back plate of Piston Tank. Feed tubing
through upper bore of bow bulk head down to brass tube S7.
Push end of tubing about 8 mm onto brass tube.
S7
S8
S6
X2
X1
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3. Mounting and Connection of CTS to Piston Tank
3.1 Before mounting CTS to Piston Tank, make up cables
connecting motor poles to tags of micro switches from wires,
yellow and violet (each. about 120 mm long) as well as blade
receptacles and heat shrink tube supplied with CTS. Skin each
wire end and tin coat with soldering iron. Crimp one receptacle
onto each wire. Cut heat shrink tube supplied in half (to about
20 mm), push over receptacles and shrink with heat gun
(>90°C). Solder other wire end directly onto connection tag of
motor.
3.2 Connection is made as illustrated.
Yellow to micro switch S2, tag 1 and "+" pole of motor.
Violet to micro switch S1, tag 1 and counter-pole of motor.
3.3 Install wires accurately around spindle and motor.
3.4 Coat contact tags of micro switches with contact spray in
order to prevent oxidation.
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3.5 Before sliding the CTS onto the micro switches, slightly
press contact tags 2 and 4 of each Piston Tank together so that
the tags lie parallel to one another. This will facilitate fitting of the
unit. CAREFULLY widen the blade receptacles (pre-soldered to
the CTS' back side) with a small screwdriver.
3.6 Slide receptacles of CTS CAREFULLY onto the micro switches. This will require some pressure but must be done with
GREAT CARE to avoid damaging the circuit board.
3.7 Align CTS in accordance to Piston Tank. The spindle must
run, more or less, in the CENTRE of the centre bore in the CTS.
Turn the spindle a bit outwards by spinning of middle gear
wheel. Proper adjustment can easily be accomplished by
carefully pressing the circuit board in the appropriate direction.
When Piston Tank and Centre Section are merged at a later
stage, guiding tube S5 will be inserted into this bore of the CTS.
3.8 Screw three brass bars S3, length 124 mm, to the corresponding threaded bolts protruding the Piston Tank's bulk head.
Bars are tightened by hand only!
S3
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4. Centre Section
4.1 Remove parts from milled sheet and sand down fillets.
4.2 Assemble Centre Section, commencing with back part T11
onto bottom plate T8. Ensure right angle by placing one side
part against back part and bottom. Glue T11 onto T8 with CA.
4.3 Add side parts T9 and T12 with CA.
4.4 Place top cover T10 onto assembly, align accordingly and
copy bores onto back and side parts. Drill with 1.5 mm bit, about
5 mm deep. Countersink all four bores in top cover T10 (diameter 5 mm at 90 degree angle). Use reamer or, if not at hand, a
matching drill bit. Top cover is fastened with four countersunk
self-tapping screws 2.2x6.5 mm - DO NOT GLUE!
4.5 Prior to final assembly purpose-made power socket must be
installed into opening of the Centre Section's right-hand side
part (seen from aft to bow). This building sequence is described
in chapter 9.
T12
T8
T10
T11
T9
drill bit
1.5
Bore for fastening
Pitch Controller
DLx
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5. Servo Block
5.1 Firstly, sand down remaining fillets from outer diameter of
servo bulk heads T5 and T7. Trim T5 to fit snugly through inner
bayonet lock ring R4. Bulk head should just fit into the ring; not
too lose.
5.2 Fit two brass bars S4, length 30 mm, with screws Y2 (allen
head) to bulk head T5.
5.3 Glue mounting plate T6 for speed controller against back
side of T5.
5.4 Prior to installation of servos, remove servo discs.
NOTE: Bulk heads accept exclusively servo type FS 500 MG
BB (item no. RO8431).
5.5 Push servo retaining plates into slots of bulk head T5. Servo
lead and shaft face towards bow. Draw servo leads through the
cut-outs in bulk head T7 and push T7 onto the servo in position.
5.6 Glue Central Section against bulk head T7.
NOTE: Top cover is not fastened, yet, but only placed onto
Central Section to ensure right angle.
5.7 If Dual Pitch Control DLx is used, mount DLx now on portside of Central Section (screw and nut are supplied with DLx).
Pass both servo leads to the DLx and plug-in accordingly. The
JST connector (red) should also be plugged onto the two pin
row for automatic pitch reverse on the DLx. Pass the two wire
leads through both servo bulk heads beneath the mounting
plate for the electronic speed controller (ESC). Do not cut wire,
yet.
S4
T5
Y2
R4
T5
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