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Krill Avanti S jet 2.1m ARF, Assembly Manual

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Krill Avanti S jet 2.1m ARF Assembly Manual Download Page 7

Tail stab Assembly  

 

 

 

 

 

 

 

 

 

 

Install the JR ds8411 into the stab half with the servo horn set with horn facing to the front of the tail half. Make 

sure you thread servo wire through the small hole before slotting in the servo. 

 

 

 

 

 

 

 

 

 

 

 

Length of the push rod in 94mm from ball to servo horn. 

 

Elevator horns are set 5mm back from the tail skin. This will make the hinge line and horn pivot in line at zero 

deflection. 

 

7. 

 

Summary of Contents for Avanti S jet 2.1m ARF

Page 1: ...flight speed rang is really impressive Designed to take an engine with 100n of thrust it is setup to be an ideal jet trainer BUT with a 220 250n turbine you have the ultimate 3d jet This will let you into a totally different flying experience Krill Avanti S jet 2 1m ARF Assembly manual Specification setup range of installation Wingspan 2 1m Turbine from 100n to 250n Length 2 22m radio 9 12 channel...

Page 2: ...rbox cockpit igyro We recommend using a powerbox smoke pump RX Batteries can be from 2500 3500mah 2s lipo Recommended turbines For Jet beginners p100 For FAI F3S aerobatics 140n to 160n For 3d unlimited flight 180n 250n vectored thrust pipe optional Recommended tank Sebart tank for kero UAT Smoke optional with kit 3d setup users with 180n or more The fuel systems must have a high flow system The r...

Page 3: ... Assembly Aileron servo JR ds8411 Aileron rod length and horn position note Aileron horn is 5mm back from wing skin set with zero aileron deflection Aileron linkage length is 110mm from ball to servo horn 3 ...

Page 4: ...Wing Assembly Flap servo JR ds8411 horn and rod position Note Flap horn is 10mm from flap hinge line Flap rod length is 80mm long from ball to servo horn 4 ...

Page 5: ...for movement in flight note door shape has to be significantly shaved down to clear leg upon suspension After you are satisfied that the door sits flush with wing skin you can now epoxy the door to the fixings After cleaning and etching place epoxy on the top faces of the two mounting blocks and place door in the correct position Apply tape if necessary to hold in place After glue is dry remover l...

Page 6: ...he fuselage wing face Replacing a 6mm thread to the front dowel which is held in place with a thumb screw will make sure that in flight The wing will not move and lock the flap up in flight Wires and air tubes can be rooted through the small tube that is installed at the front of the flap servo mounts The flap wire is rooted through this tube and across the retract bay and then though to the front...

Page 7: ...cing to the front of the tail half Make sure you thread servo wire through the small hole before slotting in the servo Length of the push rod in 94mm from ball to servo horn Elevator horns are set 5mm back from the tail skin This will make the hinge line and horn pivot in line at zero deflection 7 ...

Page 8: ... sure the servo wire in pushed thought the small pre cut hole in the servo mount Fit a metal JR 3d horn onto the servo and cut out a slot which is 90 of the hatch length Centre servo then drill a 1 5mm hole in the middle of the second and third hole to take a clevis And trim remaining horn off As Seen below Rod length is 92mm from ball to servo hole Rudder double horn is positioned 5mm back from f...

Page 9: ...stment easier later Slide 2mm rod through the door horns and tighten clamp with the servo horn down at a 45 degree angle and also door fully open Door horn should be 5mm away from hinge line of the doors After making sure the rod and horns are perfectly in line you can tack with C A and then manually check operation When you are happy you can epoxy horn joints for a permanent fixing Installing the...

Page 10: ...k in half and drill a 1 5mm hole 5mm in on both blocks Then screw blocks to each side of the predrilled holes in the bell mouth Now slide the pipe in and line up the front marks to the front of the bell Note the pre drilled holes on the bell are offset and must be checked that the bigger radius is at the bottom mark with a pen for ease to eliminate mistakes At this stage you can trial fit your eng...

Page 11: ...and rudder Route cables round the back internal former and down into the nice long groove and the bottom of the fuselage Hold in place with cable tie You can also sleeve with heat resistant lagging if you want to Also added protection you can use 1 16 balsa sheet on the bottom of the fuselage to completely seal the wires on the bottom After making sure all wires are as far away from the pipe as po...

Page 12: ...re multiplex leads for the wing join As it is only one connection and makes for even quicker rigging at the field These wires are rooted though the front half of the wing face and under the intakes and down the middle trench This makes them invisible from the intakes at the front 12 ...

Page 13: ...e retract valve is placed and in the middle of the wheel wells We use a manual all in one brake and retract valve to save weight and complicated plumbing But dual air and brake valves are fine to use also And can be placed at the front of the jet if proffered However you choose to Install the valves all airlines are best rooted through the middle trench of the fuselage to ensure 90 present of the ...

Page 14: ...es are one side and wires are the other This will make install easer later Now place the two plywood plates on top of the turbine formers and place engine on top of them Now see if the engine cone is in the middle of the pipe looking down the rear of it If turbine is to low then you can simply add extra peaces of plywood until you are happy your engine in centred Fixing Turbine Mounting Plates Bef...

Page 15: ...mm drill bit to take claw nuts from the bottom of the mounts This is not easy but take your time your nearly there now screw engine in and re check alignment Smoke tube and smoke pump position Using a single smoke tube in fine and still makes a great effect in the air Bend 4mm brass tubing so it is going across the centre of the turbine cone and ends in the middle of it Flatten the end of the bras...

Page 16: ... with 4mm claw nuts and bolts provided making sure they are centred and have an equal gap either side Remove mounting plates from the tank and glue and screw with hysol The front fixing on to the rear face of the centre former under the turbine mounting rails as shown below Now screw front mounting to the tank Slide the rear plate under the tanks fixing also under the turbine mounting formers and ...

Page 17: ...factors taken into account here are some ideas of installation we recommend leaving the battery install till the very end when you are setting up the c of g Note air tanks are placed under the front board and are joined together for one air system Note these pictures are with a 3d setup and Jet Italia 220N lion They are only guidelines and may change with different radio and turbines 17 ...

Page 18: ...t a 40oz 1200cc tank under the main fuel cell You can even fit a 52oz tank in there as well Fixed in place with 2 rails either side and Velcro straps Smoke pump is best mounted under the board on the front tank former This is best as the tubing and wires are all in the right area for plumbing Smoke pump Smoke vent next to the fuel vents 18 ...

Page 19: ...ipe can rotate and be pushed in This will change the alignment of the vector centre points so what needs to be added is a rear bracket that will anchor the outer pipe Here are some pics that will show you the shape and location of this bracket There is a nut that is holding the rudder vector pivot in place which can double as a holding peg for the bracket When fabricating the bracket make shore th...

Page 20: ... than the servo can operate This causes delay and catch up with the servo This can result in the gyro not working properly or possibly uncontrollable The recommended servo is the JR ds8915 ultra high speed digital servo Also using the JR metal 3d horns As used on the rudder Note rudder vectored servo arm needs to be Reduced to the second hole from the middle Elevator servo arm is only reduced by o...

Page 21: ... left hand side looking from the back of the plane After checking the servo arm will move along the fuselage skin and that the servo is aganst the cross former as seen in the picture Use a sharp knife at cut out the hole when checked you can now double up the mount with plywood to take 4 servo screws it is not recommended to you grommets as this two servos need to be a solid as possible for precis...

Page 22: ...nd try remover as less material as possible to keep the strength in the rear former Bolt the rods onto the pipe loosely for now and make sure everything is free and that the rods get to the servos at the front without touching any formers Make up a ball joint and threaded rod unit up and push through the carbon rod Centre the servos and mark where the carbon rod meets the threaded rod Remove carbo...

Page 23: ...Extras Wing bags and covers Available from Krill Models 23 ...

Page 24: ...Electric retracts are great and make an easy and reliable install Also sold by Krill Models CM JETS supply great high flow tanks for 3d Turbine setups Also sold in the UK just Contact BISHOP AVIATION 24 ...

Page 25: ... 0 20 20 Elevator A 0 25 25 Elevator B vector 0 0 100 Rudder A 0 30 30 Rudder B vector 0 0 100 Extremely important ALL PERSENTAGES ARE NORMAL GAIN AND THERE IS KNOW HEADING HOLD REQUIRED ON THE AVANTI S Vector movement does not need to exceed 40 degrees Movements Ailerons 20mm low rate 30mm high rate Elevator 20mm low rate 30mm high rate Rudder 30mm low rate 35mm high rate 25 ...

Page 26: ...p to the top and check c of g again This time the c of g will be shifted forward to around 240mm This setup will mean the model will fall back on its tail when empty but will remain on three wheels if it is not moved This is not a problem as the wheel placement is designed for a smooth take off Range test and your radio before you fly or start up engine make sure you perform a full rang check inst...

Page 27: ...have fun with your Avanti s Happy flying ...

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