SIG SIGRC76EGARFG Скачать руководство пользователя страница 8

a) First view the model from directly in front.  Check to see if

the stabilizer is level with the wing.  You should find it to be very
close.  If necessary use a sanding block to fine tune the stabilizer
platform to level the stabilizer to the wing.

b) Next use a tape measure to measure the distance from each

stab tip to the back edge of the wing - the distance should be
equal on both sides.  Adjust if necessary.  When you are satisfied
with the alignment, proceed to the next step

14) The horizontal stabilizer is now glued in place into the rear

of the fuselage. We suggest using slow drying epoxy glue for this
job to allow time to position the stab accurately and make any final
adjustments that might be needed. Apply the glue to both sides
and reset the stab in place.  Use pins to hold it in place.  Recheck
the alignment.  Wipe away any excess epoxy with rubbing alcohol
and a soft paper towel.  Allow the glue to set completely.

15) Pull the Fin and Rudder off their hinges and set the rudder

aside for now.  Test fit the fin in place on top fo the fuselage and
stabilizer.  Check to see that the fin sits flush and perpendicular
to the stabilizer. 

16) Glue the fin in place using slow drying epoxy glue.  Apply a

thin coat of glue to the bottom of the fin and to the exposed wood
on the stab.   With the fin in place, sight the model from the front 
to make sure the fin is absolutely 90 degrees upright to the stab.
If needed, use a little masking tape to hold it in alignment.  Wipe
off any excess glue rubbing alcohol and a soft paper towel.

17) Hinge the rudder to the fin and the rear of the fuselage using

the same techniques you did for the other hinges - refer to page
5 of this manual.  Make sure to line up the top of the rudder flush
with the top of the fin.  This will ensure the tail wheel bracket lines
up correctly.  Let the hinges dry adequately before proceeding.

18) Look closely and you will find three holes pre-drilled near

the bottom of the rudder for mounting a nylon control horn.  Install
the control horn on the left side of the rudder, with the retaining
plate on the right, using three M2 x 15mm screws.

TAILWHEEL INSTALLATION

19) Mount the Tailwheel assembly in place on the lower rear

end of the fuselage, using two M3 x 12mm screws.  Note that
there are two pilot holes already in the fuselage for the screws.

20) Adjust the wheel collar shown to set the height of the tail-

wheel wire.  Then check to see if the long steering leg of the tail-
wheel wire is parallel to the bottom of the rudder.  The wire may
need to be tweaked slightly to make it parallel.  

21) Slide the Nylon Rudder Steering Clasp onto the bottom of

the rudder and onto the tailwheel wire at the same time.  Locate

the clasp a little over halfway back on the wire, and then drill a
hole for the M2 x 15mm Bolt.  Insert the bolt through the hole and
tighten down the M2 Hex Nut to clamp the bracket in place.

RADIO INSTALLATION

For 

this section you will need:

(1)  Radio Receiver (not furnished)
(2)  Servos with Mounting Screws (not furnished)

22) Install the rudder and elevator servos inside the fuselage in

the  built-in  plywood  radio  mounting  tray.    Note  that  the  rudder
servo goes on the right side of the airplane, and the elevator servo
goes on the left side.  Be sure to drill pilot holes through the ply-
wood tray for the mounting servo mounting screws.

8

Содержание SIGRC76EGARFG

Страница 1: ...ea 725 sq in 46 7 dm2 Length 48 25 in 1226 mm Flying Weight 5 5 5 lbs 2268 2495 g Wing Loading 16 17 6 oz sq ft 48 53 g dm2 Radio Required 4 Channel with 5 Standard Servos Glow 4 Channel with 4 Standard Servos Electric Glow Power 2 Stroke 40 46 cu in 6 5 7 5 cc 4 Stroke 53 65 cu in 8 6 10 7 cc Electric Power 700 1000 watt Brushless Motor 550 800 kv 75A Speed Control ESC 4S 6S 3000 4000 mAh Lipo Ba...

Страница 2: ... engines for the Somethin Xtra 2 STROKE 40 to 46 cu in 4 STROKE 53 to 65 cu in Whatever brand engine you choose take the time to carefully break it in according to the manufacturer s instructions A good running reliable engine is a minimum requirement for the enjoy ment of this or any R C model aircraft PROPELLER FOR GLOW Refer to the engine manufacturer s instructions for recommenda tions on prop...

Страница 3: ...cludes the capability of balancing the available voltage in the cells en suring that the battery pack is at peak capacity at the end of the charge cycle This translates to better flight times and a longer life from the battery pack REQUIRED TOOLS For proper assembly we suggest you have the following tools and materials available A selection of glues SIG Thin Medium Thick CA Glue CA Accelerator CA ...

Страница 4: ...r you can find the correct tem perature by trial and error Set your iron to a medium setting Glide the iron over some of the covering that is over solid wood such as the sheeted wing center section Observe the covering to see if any bubbles appear If bubbles appear the covering is getting too hot Turn down the temperature and repeat the test If no bubbles appear turn up the heat slightly and repea...

Страница 5: ... get it to fall through the openings in the ribs until it emerges at the end rib Once you ve got the plug to the end rib direct it through the round hole in the bottom surface of the wing panel By that time the servo itself should be next to the servo mount cutout and ready for mounting f Fit the servo into the servo mount in the wing panel note that the servo is positioned so that the servo arm i...

Страница 6: ...leron Pushrod Wire all the way up to the end of the threads Then screw the metal clevis halfway onto the threaded end of the Aileron Pushrod Wire b Clip the metal clevis into the last hole in the nylon control horn Lay the other end of the pushrod wire over the outer hole in the servo arm Use a felt tip pen to mark the wire where it crosses the hole Use a pair of pliers to put a sharp 90 degree be...

Страница 7: ...ng three M4 x 20mm Socket Head Bolts and three M4 Flat Washers bolt the landing gear onto the fuselage TAIL SURFACE INSTALLATION For the following steps you will need 1 Fuselage 1 Wing 1 Stabilizer Elevator set 1 Vertical Fin Rudder Set 2 M6 5 Nylon Wing Bolts 1 Tailwheel assembly including Wheel and Wheel Collars 2 M3 x 15mm Screws 1 Nylon Rudder Steering Clasp with Bolt and Hex Nut 2 Nylon Contr...

Страница 8: ... fin and the rear of the fuselage using the same techniques you did for the other hinges refer to page 5 of this manual Make sure to line up the top of the rudder flush with the top of the fin This will ensure the tail wheel bracket lines up correctly Let the hinges dry adequately before proceeding 18 Look closely and you will find three holes pre drilled near the bottom of the rudder for mounting...

Страница 9: ... where it crosses over the outer hole in the servo arm d At the tail end unlock the elevator from neutral position and then unclip the clevis from the control horn Remove the clevis and the hex nut completely off of the pushrod and set them aside Now pull the pushrod out of the fuselage from the servo end It will be easier to complete the next three steps with the pushrod out of the airplane e Cut...

Страница 10: ... the previous step 26 from 4 25 The result is the dis tance you need to set the front of the firewall from the back edge of the plywood motor mount box With the motor we are using in these photos the motor measurement is 2 77 So 4 25 minus 2 77 1 48 Your result may be different depending on your motor b Carefully measure and mark the distance determined in the previous step from the back side of t...

Страница 11: ...of swapping two of the motor wires 31 Next bolt the motor mount box on to the front of the airplane using the M4 x 20mm Socket Head Bolts and Flat Washers pro vided NOTE The best tool for this job is a hex ball driver not fur nished With the hex ball driver you can easily access the top two bolts over the top of the front firewall And you may be able to access the bottom two bolts by going through...

Страница 12: ...ing and make any adjust ments needed to get it back in position d Now drill another pilot hole for the upper screw on the other side of the cowling Install the screw e Repeat this process to install the two bottom cowl mounting screws Remove all the tape COOLING IS VERY IMPORTANT 35 With a fully cowled motor it is very important to make sure your motor is getting properly cooled Air must be able t...

Страница 13: ...be the most trouble free installation in the Somethin Extra 37 Bolt the two Nylon Engine Mounts on the front of the fire wall using M4 x 25mm Bolts and M4 Flat Washers provided 38 Set your engine in place on the beams of the engine mounts Slide the engine forward or aft on the engine mounts until the front of the engine s thrust washer is 4 1 4 from the front of the firewall Double check to make s...

Страница 14: ...he fuselage side Glue the block to both the sleeve and pushrod side THROTTLE PUSHROD FOR 4 STROKE ENGINES 4 stroke glow engines typically have their carburetor on the back of the engine This puts the throttle arm very close to the firewall of the airplane makng the hookup of this end of the throttle pushrod more difficult If you are using a 4 stroke engine you should take a look at some of the spe...

Страница 15: ... the fuel tank and the wing joiner tube 50 Mount the receiver on off switch in the fuselage side No tice that there is a cutout for the switch in either side of the fuse lage Remove the covering over the cutout you want to use rhwn bolt the switch in the cutout 51 Mount your propeller on your motor The installation of your glow engine system is complete INSTALL PILOT CANOPY Both glow engine and el...

Страница 16: ...time we would urge you to seek the assistance of a qualified R C pilot to help you through the first few test flights Keep the ailerons and eleva tors in their low rates Once airborne get to a reasonable altitude before inputting any trim changes Once the model is trimmed for straight and level flight begin getting the feel for the way it flies We hope that your Somethin Xtra will provide you with...

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