Krill ULTIMATE 300KS Mk2 39% Assembly Manual Download Page 1

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ULTIMATE 300KS Mk2 39%

Assembly Guide

Dear customer,

thank you for choosing ULTIMATE 300KS Mk2 39% model airplane.
Original kit Ultimate 300 KS was developed by our team for patern and 3D flying too. Kit has had
great flying characteristics, but not sufficient for top competitive flying. We decided to improve it‘s
flying characteristic and in cooperation with great Italian pilot Sacha Checconi was created new
version Mk2 built on strong base of current kit and test it with our pilot Marek Plichta.
And what are the differencies?
At first, we put close together top to bottom wing and engine axis is now right in the middle of the
wings. At second we enlarged ailerons on all wings at depth and lenght too, overall area is now
bigger to original more than 60% ! Kit gets uncredible flying agility also during harier tricks. We
also decreased overall weight at the same time reinforced wings (new wing spar) for higher drain
during aggresive 3D flying . New is fixing of cabane inside the fuselage, new interplane struts , new
holder of tanks and already instaled rudder servo tray. Holder of main landing gear is also
redesigned, Gabriel horns are used on all control surfaces, as well as new builder friendly servo
fixing on the wings.
The ULTIMATE 300KS Mk2 kit is a full composite biplane kit, with main top wing from one piece
and bottom wings a horizontal stabilizator spar made from carbon fibre tubes. Both wings and
horizontal stabilizator can be easily removed for transporting. Tail control surfaces has central
hinges.

Content

page

1.

Technical data............................................................................................................................2

2.

General informations.................................................................................................................2

3.

Setting and setup .......................................................................................................................3

4.

Recommended servos ...............................................................................................................4

5.

Assembly ...................................................................................................................................4

5.1

Empenage ....................................................................................................................4

5.1.1

Rudder ..........................................................................................................4

5.1.2

Horizontal stabilizator ..................................................................................5

5.1.3

Elevator ........................................................................................................6

5.2

Wing assembly ............................................................................................................7

5.2.1

Servo install..................................................................................................7

5.2.2

Linkage .........................................................................................................8

5.3

Fuselage...................................................................................................................... 9

5.3.1

Rudder drive linkage .................................................................................. 9

5.3.2

Engine installation .....................................................................................10

5.3.3

Fuel & Smoke Tank installation ................................................................11

5.3.4

Equipment installation................................................................................12

5.4

Landing gear..............................................................................................................12

5.4.1

Main landing gear.......................................................................................12

Summary of Contents for ULTIMATE 300KS Mk2 39%

Page 1: ...ed wings new wing spar for higher drain during aggresive 3D flying New is fixing of cabane inside the fuselage new interplane struts new holder of tanks and already instaled rudder servo tray Holder of main landing gear is also redesigned Gabriel horns are used on all control surfaces as well as new builder friendly servo fixing on the wings The ULTIMATE 300KS Mk2 kit is a full composite biplane k...

Page 2: ...r 2051000 50 for Hitec servos 2051000 51 for Futaba servos 2051000 52 for JR servos Here is list of Secraft parts for linkage Servo arm D40 mm for aileron and elevator 6 Double servo arm Offset D90mm for rudder 1 Double servo arm D64mm for rudder 1 SEC Ball links M3 10 1 SEC M3 Push rod of ALU 60 mm for elevator 1 SEC M3 Push rod of ALU 70 mm for aileron and rudder 3 For rudder is higly recommende...

Page 3: ...kes no responsibility for damages incurred during the assemblying flying using or transporting this model airplane 3 Setting and set up Setting incidence and CG Basic setup Ailerons deflection 20degrees expo 40 50 Elevator deflection 30degrees expo 50 60 Rudder deflection 30degrees expo 50 60 Idle 1 for 3D Ailerons deflection 30degrees expo 60 70 Elevator deflection 40degrees expo 60 70 Rudder def...

Page 4: ...vos in standard size Recommended torque min 25 kg cm Recommended speed 0 08 0 11 s5 5 Assembly 5 1 Empenage 5 1 1 Rudder Firstly you must shorten the pegs of Gabriel horns 6 27 to the lenght 13 mm Than glue in horns into the prepared holes using an epoxy resin ...

Page 5: ... lever has enought space for full movement Otherwise the lever can damage stabilizator surface Second operation is to secure horizontal stabilizator against motion This can be done two ways First is to drill hole which goes throught surface and carbon fiber tube stabilizator spar And place a pin or screw into this hole This operation has to be done on both halfs ...

Page 6: ...e it to predrilled holes on both elevators For linkage use Secraft turnbuckle ALU pushrod 60 mm long from one side is mounted Secraft ball link M3 from second original Gabriel ball link overall lenght of the link is 80 mm 40 mm ALU Secraft V2 servo arms is used there ...

Page 7: ...inues from the root of the lower wing to the fuselage of the model The same goes for the right side To maintain the demountability of the wings and the inter wing struts the cable between the wing and the inter wing strut should be interrupted by connectors It is advisable to use PowerBox ONE4ONE cable sets 2 cables upper left and lower left aileron servos protrude from the root of the lower wing ...

Page 8: ... cables the whole cover with the servo is then inserted into the shaft and fastened with the enclosed 4 screws 5 2 2 Linkage Glue the supplied Gabriel horns size 6 20 into the prepared pair of holes First shorten the pins on the horn to 12 and 8 mm according to the picture Glue the horns into the holes with epoxy resin Servo arm is connected with the Gabriel horn using a linkage made of a 70 mm lo...

Page 9: ...f accessories that you can use Exhaust holder Tank holder Battery holders 5 3 1 Rudder drive linkage We recommend to use 2 standard servos mounted in the already glued deck to drive the rudder The rear end servo is equipped Secraft double sided offset arm 90 mm the front servo is equipped with a Secraft double side straightde arm 64 mm the arms are interconnected by linkages formed by ball links S...

Page 10: ... respects the engine misalignment ie the engine axis at the prop hub level intersects the vertical axis of the model fuselage Silencers of any type can be placed on the engine as often of the cup type which are standardly supplied with some engines DLE etc but better due to the noise limits by the silencer with headers You can use the supplied 60 mm diameter muffler exhaust holder for this exhaust...

Page 11: ...n To install fuel and smoking tanks you can use the standard delivered holder designed for use with Secraft square tanks SE Fuel tank 1000 ml The picture below shows an installation example The tanks are attached to the holder with velcro ...

Page 12: ...s and velcro For batteries typically 2x RX batteries and 1x ignition batteries you can then use the standard delivered battery holders The pictures below then represent a possible solution for the installation of on board electronics here a model equipped with JETI models electronics 5 4 Landing gear 5 4 1 Main landing gear Every kit is delivered with full accessories to instal main landing gear e...

Page 13: ...n to use pass through the holes in the wheel cover If not you can slightly enlarge the holes The chassis leg and the wheel cover fit together exactly at the point of contact First drill the holes for the axles in both undercarriage legs as shown Make a notch in the wheel cover to slide the cover onto the axle When installing first install the wheel with the axle on the chassis leg and then slide o...

Page 14: ...tail of the fuselage on a designated area which is reinforced inside with plywood Use 2 pieces of M4x20 screws to mount tail wheel secure the M4 nut inside the fuselage Drill 4 mm diameter holes into the CF leg of tail wheel as shown Place the tailwheel leg to the surface on the fuselage as shown and drill the fuselage with tail wheel leg Notice The last pieces of the ULTIMATE 300KS Mk2 models alr...

Page 15: ...o the fuselage The picture shows which holes should be made There are additional holes in the bottom of the engine cover for engine cooling and better air access to the carburetor Thus the engine cover was a modification for the used engine MVVS116NP For additional information about build you can contact us via sales krill model com email Krill B P spol s r o Inc Na Zahonech 1699 686 04 Kunovice C...

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