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V 1.10 11/14/2018 

21 

 

 

Add F10 and F11 parts to the top of the 
fuselage. Set completed wing center 
section in place and check for fit in wing 
saddle. Once satisfied, drill through wing 
into F10 to make wing bolt attachment. 
F15 is laminated to the bottom of F10 and 
blind nuts are added to the bottom side of 
F15 for the wing bolt attachments. 
 

 

Add the stringers between F1 and F3. 
Sand the top side of them flat with the 
tops of formers F1 

 

F3. Glue on precut 1/32” plywood skin.

 

 
 
 
 
 
 
 

 

Locate part F13 and glue in place. 

 

 

Add the canopy base and then F4b. 
 

 

A blind nut will be added to the underside of the canopy base to secure the front of the 
canopy. 

 

 

 

 

 

Summary of Contents for T-37 Skylark

Page 1: ...with the G10 added to the outsides of the lamination Locate all the wing ribs and shear web parts break them out of the laser cut sheets lightly sand off the nubs and group them in order This helps en...

Page 2: ...tep Note also the dihedral angle on the root side of shear web S1 This sets the angle the root ribs of the center sections The S1 and S2 shear webs set the spacing between the W1 and W2 ribs They also...

Page 3: ...nd sand the top edge so it follows the contour of the ribs Top wing sheeting will be glued down over this edge One method of applying the balsa wing sheeting is to use Deluxe Materials Speed Bond glue...

Page 4: ...deployed position Make an exit hole for the servo extension in the bottom wing sheeting at the root end Add part W6b to reinforce the alignment pin hole Once both center panels are completed fit them...

Page 5: ...that each rib is square with the spar Pin the rib trailing edge of each rib to hold it squarely in place Add the aileron door support between ribs W13 W14 Note that there are no shear webs after rib W...

Page 6: ...next section to be covered Glue the top front section of sheeting in place Add top trailing edge sheeting as shown on the plans Using the excess piece cut off in the last step fit it in place between...

Page 7: ...together for the servo doors mounts This is a good time to program your radio and set up the servo travel Install the servo arm and mount the servo on the door mount Aileron ribs are added to the bott...

Page 8: ...using 2 56 threaded rod and clevis Bend 1 32 music wire to make the spoiler door stirrup note sketch of this on the plans Stirrup needs to be about 5mm wide and extend down into the wing about 12mm wi...

Page 9: ...ect connection between the servo arm and the spoiler blade Stab Elevators The horizontal stabilizer and elevator halves are tapered structures Peter s design provides building tabs on the ribs that al...

Page 10: ...ribs be careful about pressing down too hard on the structure so you don t break off the leveling tabs on the ribs Test fit the Elevator Hatch Mount between ribs S3 and S4 It needs to fit tight again...

Page 11: ...in wing servo Use the supplied long double arm with one side removed Pull the servo leads through the ribs and out through the holes in the bottom skins No extension is needed Add the balsa donut piec...

Page 12: ...make a spacer between the E2 ribs This forms the slot for the G10 elevator control horns Once constructed add the balsa donuts to the inside of hinge point holes Add the LE to the elevator halves and...

Page 13: ...cial shims The leading edge of the rudder is like the elevators There are two pieces with pre drilled hinge point holes One is used in the initial construction of the rudder and the second is added la...

Page 14: ...e centered over the centerline of the hinge point holes Once you are sure everything is aligned glue in place Bring the fin and rudder together to check the alignment of the hinge point holes Add the...

Page 15: ...ons Since nearly the entire length of fuselage is flat on the bottom the left and right fuselage sides were aligned along a straight reference line on the workbench bottom to bottom This is an easy wa...

Page 16: ...s This creates a lip for the 1 4 square sticks that make the aft fuselage formers Add the vertical parts and then the diagonal parts to each side Make pairs of cross pieces that complete the aft fusel...

Page 17: ...perpendicular to workbench surface Add the top fuselage formers F15 F19 and then top 1 8 x 3 8 basswood spine between F15 and F7 Add F14 and F8 Clamp in place and check that fuselage sides remain ali...

Page 18: ...tall blind nut on the underside of F14 So far everything has been done with the fuselage bottom flat on the workbench surface Because of the keel tabs on the bottom of formers F2 F6 the fuselage will...

Page 19: ...e Cuts were made in the right side longerons and the sides were brought into symmetry and F1 is now square with the centerline Block the fuselage in place over a straight reference line and check for...

Page 20: ...servos fit properly in these mounts before gluing them in place Motor battery is an E flite 4S 30C 14 8V 4000mAh LiPo pack Tow release servo is a Spektrum A6320 Rudder servo is a Spektrum A5060 Add b...

Page 21: ...nt F15 is laminated to the bottom of F10 and blind nuts are added to the bottom side of F15 for the wing bolt attachments Add the stringers between F1 and F3 Sand the top side of them flat with the to...

Page 22: ...re cut 1 32 plywood sheeting Continue on back with the next section of 1 32 plywood sheeting and then up between the wing mount and angled side Lightly sand off the sharp corners Remember to secure th...

Page 23: ...he slots on both sides of the rudder Install double arm on rudder servo and run cable for the rudder pull pull system This is also a good time to decide where and how you will mount your receiver rece...

Page 24: ...ed to run the servo extension wires for the elevator servos We used rubber grommets in the holes we made for the wiring to pass through Add the 1 32 plywood sheeting to the right upper side and sand o...

Page 25: ...hut Use scrap pieces to box in both ends of the keel and sand off the sharp corners Laminate the balsa nose blocks together and then add them to the front of the fuselage making sure that there is cle...

Page 26: ...coats sanded between coats of Miniwax water base Polycrylic Clear Satin Protective Finish on the 1 32 plywood surfaces and the balsa nose blocks Peter finished his model with Zap Epoxy Finishing Resi...

Page 27: ...els to complete Drill a hole in the bottom of the keel to locate the dolly as shown on the plan This needs to be a very loose fit so dolly will easily fall away on takeoff Pilot Figure is available th...

Page 28: ...V 1 10 11 14 2018 28 Completed Prototype built by Peter Goldsmith Caroline Goldsmith holding model Completed Kit 1 built by Jim Dolly view build thread on www forum scalesoaring com...

Page 29: ...12AWG EC3 EFLB40004S30 Launch Dolly DuBro Treaded Lite Wheels 4 1 2 DUB450TL note will need two wheels DuBro 3 16 Dura Collars 4 DUB141 note will need four and there are four in one pack 3 16 Music W...

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