Fox Composites BAe Hawk Скачать руководство пользователя страница 33

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Cockpit Detail Set

An optional cockpit detail set is available for the Hawk, consisting of vacuum-formed ABS parts.

Please contact your dealer, or Fox Composites, for more information and availability.

Radio Installation

There is lots of space under the cockpit to fit any R/C system you wish - even if you chose to fit a

cockpit detailing set. If you cover over the top of nosegear bay, and make the lid removable, you

can secure many of the R/C items onto it. Of course you can also install batteries and air tank for

the retracts in the nose of the fuselage, if you have fitted the rearward-retracting nosegear - which

will also ensure that you have no problem at all setting the correct Centre of Gravity.

In any case we advise that you keep the turbine

fuel pump (and ECU if possible) as far away from

your receiver as possible. Unless you are going

to install 2.4GHz R/C, then you should definitely

use an external whip antenna, and this should be

positioned in front of the turbine - as far away

from the metal thrust-tube as possible. We

strongly recommend that you use dual RX bat-

teries and inputs to your receiver, and either 2

switches, or a dual switch with integral voltage

regulator (eg: Powerbox Sensor).

As the turbine installation in this model is ‘open’,

rather than fully enclosed in a bypass duct, you

must be extremely careful to fix everything in the

fuselage securely - so that it cannot be sucked

into the turbine. Of course it is also wise, and a

very good safety precaution, to fit a FOD guard

to your motor and we strongly recommend that

anyway in this plane.

Try to position the hopper tank where you can

easily see it after each flight - as if there is a con-

siderable amount of air in it you will know that you

Fox Composites Co., Ltd.

If fitting a forward-retracting nosegear unit, you will probably have to make a 180 degree
bellcrank system for the steering linkage, because of limited space in the nose. Above is an
example of how it was done on the original Hawk prototype.

Two views of the turbine and R/C gear in-
stallation in Jim's original turbine Hawk pro-
totype. There is lots of space in the Hawk !

Содержание BAe Hawk

Страница 1: ...Fox Composites Co Ltd April 2008 version 1 Fox Composites BAe Hawk...

Страница 2: ...ility Exclusion You have acquired a kit which can be assembled into a fully working and flying radio controlled model airplane when properly fitted with suitable equipment and accessories and construc...

Страница 3: ...ality glue and to prepare both parts to be joined properly When joining any com bination of fibreglass and wood parts together you must lightly sand both parts to provide a mechanical key for the glue...

Страница 4: ...owever it is relatively easy to dent the outer surface and so it is necessary to protect the model during assembly by covering your workbench with soft carpet or foam Included in the kit are protectiv...

Страница 5: ...kit was designed around Spring Air 300 or 700 series main gears 90 de gree and Spring Air 100 or 300 series 90 or 100 degree nose gear but of course many other units of a similar size can be used Main...

Страница 6: ...or to limit the max current to your receiver One simple way to achieve this is to use the excellent small lightweight Powerbox Sensor switch which combines dual electronic fail ON switches for dual Rx...

Страница 7: ...eads will be al most flush with the surface Open up the holes in the balsa plate in the fuselage only to 5 5m for the T nuts Reinstall the wings screw the T nuts onto the wingbolts and then secure the...

Страница 8: ...que and larger gears In any case we recommend that you use aileron servos with a minimum of 4kg torque Fit the servos in the opposite orientation in the 2 wings so that you can Y lead them together an...

Страница 9: ...ends of the ailerons in line with the linkage and glue in place to the aileron leading edge and lower skin with a little 30 minute epoxy and micro mixture Drill right thru the aileron on the marked l...

Страница 10: ...r to use a digital servo with at least 8kg torque and have installed JR 8311 s here If you want to use a single Rx channel and Y lead for operating the two flap servos then you must fit them both in t...

Страница 11: ...ation before gluing anything in place permanently with epoxy and micro balloons Install the flap horns before the servo mounts They should be close to the mid span of the flap we fitted both 195mm out...

Страница 12: ...hardware we used M3 threaded rod and steel clevises and they will need to be approx 100mm long clevise pin to pin NB To obtain the best mechanical advantage and holding power for the flaps you must se...

Страница 13: ...ust the position of the slots forward so that the wheels are in the same position Sand the back edge of the mounting plates a little if necessary so that you can just insert them into each retract bay...

Страница 14: ...m the end of the brass adapter to the centre of the wheel axle needs to be 97mm If it is shorter then the wheel may foul on the air nipple and tube on the end of the retract Carefully align the sides...

Страница 15: ...edge of the wings exactly in line with the joint be tween the flaps and ailerons scale position if you wish However we noticed no difference to the flight char acteristics with them on or off and they...

Страница 16: ...turbines in the recommended thrust range Each stab has pair of I D 7mm fibreglass tubes in stalled in it during manufacture to take the 7 x 180mm rods These fit into the factory assembled Yoke and th...

Страница 17: ...least 10mm up and 10mm down move ment at the trailing edge with out any binding Note that the elevator neutral level flight position is with the top of the stab trailing edge flush with the top of the...

Страница 18: ...an blow back at speed and therefore this gap can be kept to a minimum The spac ers shown in the photo here are made from 1 16 plywood An alternative is to permanently in stall 4 thin plastic or nylon...

Страница 19: ...ixture Re install the servo and refit the M3 or 4 x 40 pushrod linkage as shown Fit the clevise as close to the servo arm centre as possible and use at least 100 servo travels to maximise the me chani...

Страница 20: ...coat of laminating epoxy on the rods Apply a little thick mixture of slow epoxy and micro balloons inside the fuselage tubes and on the joiner rods and fit the fin into position With the wings and st...

Страница 21: ...e root of the rudder in line with the airflow on masking tape File a small slot in the left side of the fin on the marked line so that you can check the correct depth of the servo mount using the link...

Страница 22: ...of factory installed fibreglass flanges in the fuselage These 2 plywood mounting plates also se cure the 2 conformal fuel tanks in place in the fuse lage and make removal for maintenance very quick a...

Страница 23: ...mounting bolt holes for it The mounting tabs on the front of the thrust tube can be screwed to the bulkhead immedi ately behind the turbine See Thrust Tube section for more details Adjust the width b...

Страница 24: ...T Thailand which performed well Total weight of the tube is 240 grams Many of our customers are using the tubes from Wren Turbines UK and they seem to be very light weight have excellent performance T...

Страница 25: ...in series or parallel but in our experience we seem to get less air in the hopper tank when they are connected in series We recommend that you fit a small hopper tank approx 125cc 4 oz capacity betwee...

Страница 26: ...hru the balsa block in the hatch Drill the 7mm hole in the fuselage for the fibreglass dowel Remove the mask ing tape and wax both the back of the hatch and the fuselage around the holes in case you g...

Страница 27: ...below The cockpit canopy is held onto the fuselage with a single dowel at the front and a hatch catch at the back to fix it to the hatch Wax the front of the canopy frame and the front of the fuselage...

Страница 28: ...y over the frame and carefully mark a centreline on the back and front of the canopy and frame on masking tape viewing from the front and back to be sure that the canopy is not twisted Cut the clear c...

Страница 29: ...ompletely clear eg Pacer ZAP For mula 560 or R C Modellers Glue This can be ap plied with a small brush so that it wicks into the joints and then excess glue can be wiped off with water before it cure...

Страница 30: ...he fuselage will catch the other drops of glue The door is laminated from a foam sandwich 2mm thick so that it retains the correct shape To use it as a hatch cover for the nose you will need to glue s...

Страница 31: ...bulkhead and secure the retract unit using 4 small bolts and T nuts on the front face Prepare the edges of the bulkhead and the inside of the fuselage carefully for gluing Now cut a small slot in the...

Страница 32: ...ervo and adjust the linkage length so that the wheel is straight when the nosegear is in the down position Now retract the gear making sure that the wheel stays centred and straight Take a scrap of li...

Страница 33: ...front of the turbine as far away from the metal thrust tube as possible We strongly recommend that you use dual RX bat teries and inputs to your receiver and either 2 switches or a dual switch with i...

Страница 34: ...p and Flying Centre of Gravity Set the Centre of Gravity at 140mm 5 1 2 from the central leading edge of the wing with a full Hopper tank and main tanks 50 full The main wing tanks are located almost...

Страница 35: ...between the 2 tubes and also between the fuselage and outer tube or ejector ring When you go to the field for the first flight it is always wise to have another experienced helper with you to act as a...

Страница 36: ...the speed and descent and keep the fuse lage level to touch down on all 3 wheels almost together at least until you have flight experience Of course you can easily practice this at higher altitude so...

Страница 37: ...liser servo mount 6mm ply glass 2 Aileron servo mounts 6mm ply glass 2 Aileron mount doublers 6mm balsa 2 Aileron horn reinforcing blocks 6mm liteply 2 Flap servo mounts 6mm ply glass 2 Landing gear m...

Страница 38: ...op and bottom views of the EDF version Hawk show ing the factory fitted inlets which suit standard 5 1 4 ducted fan units and EDF units such as Turbax E etc Also included are 2 telescoping adapter sle...

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