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Composite-ARF BAE Hawk Instruction Manual

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B.A.E. HAWK
BAE Hawk
INSTRUCTION MANUAL
"THE BEST FLYING PLANES ON THE PLANET"

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Summary of Contents for Composite-ARF BAE Hawk

  • Page 1 B.A.E. HAWK BAE Hawk INSTRUCTION MANUAL “THE BEST FLYING PLANES ON THE PLANET”...
  • Page 2 However, as manufacturers, we at Composite-ARF are not in a position to influence the way you build and operate your model, and we have no control over the methods you use to install, operate and maintain the radio control system components.
  • Page 3 B.A.E. HAWK www.carf-models.com Attention ! This ‘jet’ aircraft is a high-end product and can create an enormous risk for both pilot and spectators, if not handled with care & used according to the instructions. Make sure that you operate your ‘Hawk’ according to the laws and regulations governing model flying in the country of use.
  • Page 4 Acetone and many other solvents will, and this is what we use at the factory. At Composite-ARF we try our best to offer you a high quality kit, with outstanding value-for-money, and as complete as possible. However, if you feel that some additional or different hardware should be included, please feel free to let us know.
  • Page 5 160N turbine should be turned down in RPM 5%. Comp ARF display aeroplanes use JetCat turbines. 5. Retractable Landing Gear sets are available from Composite-ARF in sport and scale sets (C-ARF product #200500-Sport) and (#200600-Scale). The Hawk was designed specifically around the German manufactured AT high quality sets that include three units, plus specifically manufactured trailing link legs with associated ball raced wheels and high quality brake units.
  • Page 6 www.carf-models.com B.A.E. HAWK 7. A radio system with a minimum of 7 channels is needed, but C-ARF recommend a quality system with 9 or more channels to allow individual servo connections to the receiver system (talk to your C-ARF rep for advice on a suitable system) High quality extension leads are required and a guide to the sizes and quantities required are listed below.
  • Page 7 This tube is designed to work with the sizes of turbine intended for the BAE Hawk. Turbines in the 22-35lb thrust class are perfect. The tail pipe is mounted in the fuselage between the...

  • Page 8: Turbine Installation

    www.carf-models.com B.A.E. HAWK the position. Access to the two front mounting screws (2.2 x 10mm) is improved if you drill two access holes in the rear wing seating area. Holes drilled at 170mm centres approx and 10mm in from the rear edge of the wing. The tail pipe front brackets should be screwed directly to the turbine mounting rails.

  • Page 9: Fuel Tank Setup

    Fig 8 Fuel Tank Setup Composite-ARF offer an optional moulded Kevlar fuel tank of 4.1 ltr capacity, which is installed in the fuselage on the C of G and a plastic tank that can be used as a hopper tank in the cockpit area.
  • Page 10 www.carf-models.com B.A.E. HAWK tank cap and tubing will reward you with a reliable aeroplane. De-bur inside the brass tubing with a new sharp scalpel blade and remove any raised edges on the outside caused by cutting. To aid sealing and help prevent the fuel tube coming off, solder the short lengths of tube provided a few mm back from each end of the feed line and on the outside of the breather...
  • Page 11 Canopy Frame and Canopy Glass The moulded canopy frame has been factory trimmed and the retaining system completed. The BAE Hawk features a large canopy where the fixing and canopy rigidity is critical. A pair of canopy hooks at the rear...

  • Page 12: Tailplane Assembly

    www.carf-models.com B.A.E. HAWK to mark cut lines on. Trim the front and rear end plate areas off the clear glass with a pair of curved cutting scissors. Tip, do this when the canopy has been sitting in a warm room for some time. Lay the canopy glass carefully over the canopy frame and mark the rough cut lines with a marker pen.

  • Page 13: Fin And Rudder

    www.carf-models.com B.A.E. HAWK kits will have these factory installed. Fitting the horns on the early kits is a straightforward job, requiring four slots cutting in the top surface of the cross brace. This brace is hollow in the centre where the centre pair of horns fit and filled where the outer pair fit.
  • Page 14 www.carf-models.com B.A.E. HAWK with a minimum torque of 8kg. We highly recommend a metal geared servo like the JR 8411/8711. It is important to use the screws supplied in the kit and not the screws provided with the servos, which are too small in diameter to provide resistance to movement.
  • Page 15 www.carf-models.com B.A.E. HAWK Wing The wing fixing system has been completed for you in the factory. Two carbon pegs locate into the fuselage front wing former, and two M4 x 60 high-tensile steel socket head caps screw into the pre fitted wing fixing nuts that are bonded into the wing fixing loop formers.
  • Page 16 www.carf-models.com B.A.E. HAWK clear the servo wire as it exits the servo case. The aileron servo extension should run along the wing in front of the main wing spar before passing through the spar around the centre section. The extension lead must be restrained where it runs past the flap linkage.
  • Page 17 www.carf-models.com B.A.E. HAWK support in the form of a tube slipped over the all thread between the clevis fixing nuts. On early kits, the factory linkage access hole through the main wing spar needs adjusting for pushrod clearance. Fitting the linkage from the flap control horn will show you the required direction of slotting to allow clearance.
  • Page 18 www.carf-models.com B.A.E. HAWK Main gear door installation. The main gear doors are supplied moulded in one piece. These should be separated into three pieces, the larger inner section is hinged using the milled phenolic hinges and the supplied rod and tube. The centre section will be fitted to the struts and the small base piece notched to clear the strut, or hinged if you chose.
  • Page 19 www.carf-models.com B.A.E. HAWK and ensuring perfect operation before final fixing. With the door pieces separated spend some time sanding the door recess to remove any high spots and chamfer the door edges so that they seat fully in the recess. Fig 46 Fig 47 Fig 48...

  • Page 20: Main Landing Gear Installation

    www.carf-models.com B.A.E. HAWK When satisfied with the hinge positioning, and opening angle, the hinges and tubes can be fully bonded in position. On a Hawk the main doors open to around 85 degrees. To aid cylinder clearance fitting ball link ends will allow one cylinder to be attached to the inside and the opposite attached to the outside of the hinges.
  • Page 21 www.carf-models.com B.A.E. HAWK T-nuts. Some of the T-nuts will require trimming for structure clearance. Before installing the nuts apply a small amount of grease into the threads to stop glue locking the screws in Fig 54 Fig 55 position. Apply a small amount of 30 minute epoxy onto the nuts and partially pull into position using an M4 x 15 cap head screw and a large M4 washer.
  • Page 22 www.carf-models.com B.A.E. HAWK Fig 59 Fig 58 fully retracted. If tyre clearance is tight a thin plywood shim under the retract unit to lower the wheel when in the retracted position should be added. Once you have found the perfect position fully lock the legs by tightening the lock screws fully. The wing structure features convenient openings to allow the air tube to be easily routed through the wing to the centre section.

  • Page 23: Nose Gear Door

    www.carf-models.com B.A.E. HAWK with the arm furthest from the steering arm. The steering servo requires a strong servo arm at least 18mm between centres, using your radio set the servo arm neutral position parallel to the steering arm fixed to the nose leg, with the wheel straight. Assemble the Fig 62 Fig 63 linkage from two plastic ball-Links and a single length of M3 x 30 all-thread.
  • Page 24 This method will require two nose gear cylinders for operation, and a spring to close the small door. As the Composite-ARF Hawk is intended as a sports scale aeroplane many of the team have decided to use a single nose gear door, hinged on one side only. This method is much simpler than the twin set up and in flight the appearance is not changed.
  • Page 25 www.carf-models.com B.A.E. HAWK are positioned at 35mm, 126mm and 180mm back from the front edge with the nose cylinder attached to the front pair. It may be necessary to trim the rear hinge to clear the nose wheel steering servo which sits in the door opening in with the leg in the down position.
  • Page 26 www.carf-models.com B.A.E. HAWK fuselage. Whether you chose a single door or scale twin doors the cylinders base mount to the top inside face of the fuselage shell. The angled face will require a packing piece approximately 10mm thick before shaping. The cylinders should be fully extended with the doors open, this will leave a few mm of travel when the door (or doors) close, helping to resist opening from air pressure in flight.
  • Page 27 www.carf-models.com B.A.E. HAWK tank to the header as short as possible. If you chose to fit the tank at the forward end of the tray ensure large bore tubing is used to keep the pump load low. If your intention is to fit a scale cockpit, thought should be given to keeping the equipment mounted low within the cockpit area.
  • Page 28 www.carf-models.com B.A.E. HAWK cause binding with full and free movement on the tailplane. The remaining vanes and plates are optional in their fitment, study a full size Hawk to position these scale additions. Setting up and Balancing The final weight of your Hawk will vary with your turbine and radio equipment choice, the prototype models varied between 11 and 12.5kg dry.
  • Page 29 B.A.E. HAWK BAE Hawk Hardware Bags Rear Fuselage/Rudder/Stab Sheet Metal Screw 2.9 mm Servo screw M4 x 12 allen bolt stab servo frame mount M4 washer stab servo frame mount M4 T-Nut stab servo frame mount Control horn (3mm hole) (later will be installed)
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