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Cut  out  a  foam  plug  using  the  same  method  used  for  the  receiver  and  servo  recesses  and 
glue back in a 5mm to 10mm (3/16 to 3/8”) slice to form a base. Keep the remainder of the 
foam plug for later use. 

78.

 

Cut slits into the top surface of the wing to accommodate the battery lead and servo leads. 
The receiver antenna should be kept a little clear (and avoid any crossing if possible) of the 
servo leads, battery leads and spar to avoid possible interference with the radio signal from 
the transmitter. Cut a slit for the receiver antenna that loops around and then runs up about 
25mm (1”) in from the foam trailing edge of one of the wing halves. 

79.

 

Fit the battery pack, receiver and servos into their recesses. Plug everything together and test 
that  it  is  working  correctly.  Make  sure  the  servo  arms  are  centered  in  the  correct  position 
when  the  transmitter  in  on  and  its  trims  are  neutral.  The  servo  arms  should  be  pointing 
directly  upwards,  or  leaning  just  slightly  rearwards.  Unscrew  the  servo  arms  and  adjust  if 
required.  Also  check  for  correct  direction  of  servo  travel.  Viewed  from  above,  when  your 
transmitter’s  elevator  stick  is  pulled  back  for  “up”  control,  both  servo  arms  should  move 
forwards  (towards  the  leading  edge  of  the  wing),  and  both  servo  arms  should  move 
backwards when “down” control is applied.  When your transmitter’s aileron stick is moved 
to the right for “right roll” control, the right servo arm should move forwards and the left 
servo arm backwards, and opposite when “left roll” control is applied.  

80.

 

Perform a “range check” for your radio equipment now. You should be able to control the 
servos smoothly from 10 paces away with your transmitter’s aerial retracted (not extended at 
all). 

81.

 

Once  you  are  satisfied  that  your  radio  equipment  is  functioning  correctly  it’s  time  to  start 
building it into your glider. Soon retrieval of radio equipment will require surgery on your 
glider so it is best to make any necessary adjustments or repairs now. Also keep in mind that 
you will need to have access to a means of charging your receiver’s battery pack once it is 
embedded into the glider. This can be by means of a special switch with charging socket or 
as  simple  as  having  access  to  the  battery  pack’s  plug  (perhaps  just  having  it  plug  into  an 
exposed socket of your receiver). 

82.

 

Coil  up  the  excess  length  in  the  leads  and  insert  them  (along  with  the  electronic  elevon 
mixer  if  used)  into  the  recess  you  made  next  to  the  receiver.  Slice  off  an  appropriate 
thickness  from  the  top  of  the  remains  of  this  foam  plug  to  form  a  lid  and  glue  it  in  place 
flush with the top surface of the wing. 

83.

 

Glue the battery recess’ lid in place over the battery pack so it’s flush with the top surface of 
the wing. 

84.

 

If you chose to embed your receiver below the wing surface, glue in the top slice from your 
receiver’s foam plug now so that it is flush with the top surface of the wing. 

85.

 

Measure the distance from the bottom of the spar joiner to the bottom surface of the wing at 
both the centre and the ends of the joiner. Cut a slice of the appropriate thickness from the 
bottom of the spar joiner’s foam plug and glue it in place. 

86.

 

Repeat for the gap between the top of the spar joiner and the wing’s top surface. You may 
want to use the scrap piece of EPP you marked out earlier (step #5) so that you don’t have 
the gap from the spar slot. 

87.

 

Cut  and/or  sand  off  any  excess  glue  from  around  the  foam  plugs  so  that  they’re  all  flush 
with the surface of the wing. 

 
TAPING & COVERING 
 
These instructions are based on using 48mm (2”) wide strapping tape with cross-woven fiberglass 
filaments,  hereto  referred  to  simply  as  “filament  tape”.  The  instructions  outline  the  process  of  

Содержание Skua 1500

Страница 1: ... 1 Wowings Skua 1500 CONSTRUCTION MANUAL Copyright 2005 Wowings www wowings com ...

Страница 2: ...ne of the contents have been damaged If anything is missing or damaged please contact your place of purchase immediately to make arrangements for replacement parts to be supplied Your S 15 kit should contain the following 2 x EPP foam wing halves each with two panels joined together 2 x lengths of 9mm diameter fiber glass tubular 2 x length of carbon ribbon 2 x lengths of spruce spar 4 x lengths o...

Страница 3: ...ands during the curing process and penetrates into the surrounding EPP foam creating a strong tight bond without adding a lot of weight However if not used carefully it can create a mess and possibly even ruin the wing For this reason these instructions will focus on using more fool proof glues instead If you decide to try using PU glue for the first time it s best to experiment a little on some s...

Страница 4: ... slot Wipe off any excess glue 8 Place the entire wing back into its foam beds and rest it on a completely flat hard surface eg table or floor We suggest removing the top portion of the wing beds by cutting along the leading edge Weight it down so that the wing is kept flat and completely snug with the bottom curve of its foam beds To avoid deforming the foam make sure the weights aren t too heavy...

Страница 5: ...rom the from the rear half of the foam airfoil shape 14 Once you are happy that they will fit nicely round off the top and bottom edges of the outer end only of each balsa trailing edge piece not where they join together to make covering easier later on 15 Use 5 minute epoxy to glue one of the balsa trailing edge pieces to the drag spar or the foam if no drag spar was installed Hold in place with ...

Страница 6: ...n pieces and cut out along the lines marked You will have a left and a right elevon each orientated so that their narrower end is at the wing tip 23 Using a sanding block sand a 45 degree bevel along the leading edge of each elevon with the 45 degree opening on their bottom surface ie they ll be hinged on top surface 24 Round off the top and bottom edges of each end of both elevons to make coverin...

Страница 7: ...ION This section of the instructions are for those with a S 15 ballast kit These can be purchased separately in addition the standard S 15 kit and contain the following 1 x length of 9 16 14mm diameter brass tube 1 x length of 1 2 13mm diameter brass tube 1 x length of pine dowel 1 x EPP foam jacket for brass ballast tube Installation of a ballast tube is optional but recommended so as to achieve ...

Страница 8: ...e to proceed with the following steps to make the ballast system yourself 35 Locate the 1 2 13mm diameter brass tube This can be used as the housing for your lead filled slugs cylindrical sections Mark out the tube so that it is divided into 8 equal lengths each measuring 1 1 2 38mm 36 Use a hack saw to cut the tube into 8 equal sections seal of one end of each one with masking tape and then push ...

Страница 9: ...wing and remove the resulting foam plug 50 Test fit the ballast tube s foam jacket into this cut out to ensure it fits snugly Adjust if necessary 51 Use PU glue or epoxy to glue the ballast tube and foam jacket assembly into the wing so that the side of the foam jacket with the ballast tube channel opening is completely flush with the bottom surface of the wing Place the wing in its beds while the...

Страница 10: ...ATION You can use either standard size servos or metal geared mini micro size servos for the S 15 Standard servos have the advantage of being cheaper stronger and usually develop less slop free play in their gears However they are substantially heavier so the model will require more nose weight to balance because the servos are behind the CG increasing its all up weight further by up to about 100 ...

Страница 11: ...r with a pen and then cut out along this outline all the way down through the foam Remove this foam plug and mark its front side with a vertical line for later reference 65 Decide whether you want to mount your receiver flush with the top surface of the wing or embed it beneath the surface Base this decision on the layout and size of your receiver and whether you intend to use a switch or plug the...

Страница 12: ...nse of replacement servo cases 71 Lay your servo on top of the wing so that one of its sides is on the line you marked parallel to the wing join and one of its opposite corners or servo mounting lugs is touching the line parallel to the spar slot Trace around the servo and then cut around this outline with a sharp knife all the way down through the foam Push out the foam plug and mark with a verti...

Страница 13: ...ur radio equipment is functioning correctly it s time to start building it into your glider Soon retrieval of radio equipment will require surgery on your glider so it is best to make any necessary adjustments or repairs now Also keep in mind that you will need to have access to a means of charging your receiver s battery pack once it is embedded into the glider This can be by means of a special s...

Страница 14: ...eep the glider rigid during flight For each piece of tape applied overhang the wing by 25mm to 50mm 1 to 2 and wrap around to the opposite surface of the wing When a piece ends at the balsa trailing edge you can just cut if off flush with the edge don t wrap around Rub each piece that is laid down with some fine sandpaper to remove any release agent from the tape s backing for better adhesion of s...

Страница 15: ...their correct position butted up against the foam trailing edge with the 45 degree beveled opening at the bottom 105 Spray the top of both balsa elevons and the rear portion of the adjoining foam sub trailing edges with spray adhesive Let dry for 5 minutes 106 Lay a strip of cross weave filament tape down the entire hinge line of one elevon on the top surface positioned so that 1 3 of its width is...

Страница 16: ...ips Working your way forwards lay down each strip of tape span wise tip to tip overlapping the previous one by 5mm to 10mm 3 16 to 3 8 Don t worry about overlapping the leading edge of the wing just trim off flush for now it will be covered later Stop short of the nose area you ll cover this area later after the lead balance weight has been embedded into the nose 119 Temporarily lay some plastic o...

Страница 17: ...le in this position tighten the lock screw on the EZ connector to fix it to the pushrod Repeat for the second elevon 130 Trim off the excess length of the pushrod using a pair of side cutters pliers FIN ATTACHMENT Attachment of the front portion of the fins can either simply rely on a friction fit into the foam or be held in place with tape as per the following procedure We suggest not gluing them...

Страница 18: ...ve everything already installed in place ready to fly namely the fins and pushrods 139 First check that your glider is balanced side to side at the centre line of the wing not necessarily always exactly at the panel join line If required you can embed a small piece of lead into one of the wingtips towards the leading edge If one wing half is significantly heavier than the other the glider can have...

Страница 19: ... of each wing panel so that half of the width is on the top surface and half on the bottom surface Split and overlap the tape at the panel joins and split and wrap around at the noses and wing tips 149 Apply trims stripes and or other decorations as desired 150 The included computer cut vinyl Skua sticker has both a backing and a fronting To apply peel the sticker of its yellow backing and press i...

Страница 20: ... Don t forget to also make sure that no one else is using the same radio frequency as you prior to turning on your transmitter at the flying site 157 The S 15 is launched by hand The most powerful launching technique is to grab the wing in the centre at the trailing edge so that your palm is against the wing s bottom surface and your fingers curled around the trailing edge onto the top surface The...

Страница 21: ...u may lack the necessary flying skills for this glider it s always a good idea to ask someone with experience to check your glider over prior to its first flight and be there to offer suggestions to overcome any difficulties you are having flying it Most people are usually more than happy to help you if they re asked nicely If you have any questions about the construction process or the flying beh...

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