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V5 (02.06.2020)

Bubble Sinbad is a Vintage glider / Motor-glider designed by RC-Laserkit in classic wood

construction.

This model may be easily modified to supprot brushles motorization.

The particularities: • laser-cut all-wood construction with dovetailed and weight-optimized,

• component-transport friendly due to two-piece wing,

• optionally with motor Pod for electric drive

The kit:

The model may be build on a plane surface of 1,5m x 0,5m.

The wings are constructed with an intro leading edge, pine spars, light plwoody ribs, balsa planking.

The stabilisator is constructed using a plywood template. The laser-cut ribs are accurately

positioned and positively positioned with the support feet in the auxiliary template which allows a

structure without a blueprint.

The wing joiner is handled by a 6mm steel rod to be bend to obtain 14 grades dihédral angle.

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The kit includes – all the parts listed below:

ID Qty Material Description L (mm) x W (mm) x H (mm)

10 Pine strip fuselage side spar 1000 5 3

4 Balsa strip Stabilisator spar + Rudder Ribs 1000 8 3

3 Pinestrip Wing Rear spars 1500 8 2

6 Pine strip Main wing spar 100 10 4

1 Balsa strip leading edge elevator flaps + hinges rein-forcement

1000 15 15

3 pine Leading Edge

Leading Edge diameter 5mm 1000 5

1 Windshiel 0,5 mm PVC

Template to be downloaded from www.rc-laserkit.com

1000

1 steel rods dihedral to be set to 14° in total 500 6

2 brass pipe diam. 7 x 0,6

Wing joiner 250 7 0,6

1 pine strip wing holder diam 6 mm 500 6 6

1 Balsa sheet cockpit sheeting 1000 100 1,5

1 Balsa strip Reinforcement blocks for wing holder sticks

200 25 25

1 Ply Stabilisator building template 700 350 3

PW1 2 Ply Set of 18 wing ribs 3

PW2 2 Ply Wing spars + decks 3

PF1 1 Ply fuselage formers 3

PF2 1 Ply fuselage spars 3

PF3 1 Ply fuselage spars 3

PF4 1 Ply fuselage spars 3

PF5 1 Ply Cockpit formers 3

PF6 1 Balsa Rudder 3

PF7 1 Balsa Rudder 3

PF8 1 Ply Stabilisator spar 3

PF9 2 Balsa Stabilisator ribs 3

PF10 1 Ply Stabilisator trailing edge / Leading Edge + Wing tips

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PF11 1 Balsa Stabilisator leading edge (To sand in shape)

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PF12 1 Balsa fuselage Noze blocs 10

PF13 5 Balsa Trailing Edge sheeting 2

PF14 6 Balsa Leading Edge sheeting 2

1 Paper Plan as indication of the elements position

Not included in the kit are adhesives, iron-on film and RC components.

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Necessary building material:

• For the construction of the model we recommend a construction kit with the dimensions

1500mm x 500 mm

• CA glue, wood glue.

Recommended RC equipment:

• Battery (4 cells Eneloop 750 mAh (AAA size)

• 3-channel receiver with normal range

• 2 x standard servos 53,5kg)

For the motorized version:

Motor Brushless 200W to 300W

o D-Power Brushless Motor AL28-14

o D-Power Brushless Regler "Comet" 20A

o Lipo 3S 1500mAh

o Propeller 8 x 4

Technical specifications: Span: 2800 mm area: 81,02 dm² sweep: 0° at the front. Wing loading: about 20 g/dm² flight weight: +/- 1200 g to 1500 g Profil: ca. 8 %

Setting values: Neutral / Elevation + 0 mm elevator + 12 / - 12 mm Direction + 25 / - 25 mm Center of gravity 90 mm to 100 mm from Leading Edge

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1. Fuselage

Prepare fuselage spar.

Glue together the two parts of fuselage upper Spar 1. Rudder Assemble R1, R2, R8, R7 on the fuselage spar R3 .

It is easier to do it now to be able to build the rudder on a plane surface.

on the latest version R3 is part of the fuselage upper spar !

Glue together the four parts of the fuselage lower spar to get the 6 mm thickness lower spar!

Glue together the two parts of the fuselage right and left spars.

Glue together formers F4 and F4a taking care F4A must on the front side of the fuselage

Maintain de lower spar vertical and position the formers in the slots starting from the front

with F1B, F2b, F3b, F4d

Position the horizontal deck DH1 and make sure DH1 is perpendicular to F4a and F2b,

adjust slot in fuselage lower spar if necessary.

Place Formers F5a to F10 on the fuselage lower spare.

Place the formers F1a, F2a, F3a on top of DH1 deck aligned with respectively F1b, F2b,

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F3b, make sure formers are perpendicular to DH1.

Place the Fuselage upper spar and the fuselage side spars. Be sure F10 is perpendicular to

fuselage upper spar.

Place the pine 3x5 strips all around on the side of the fuselage

Place the two WB pieces that will support the wings on the top of the fuselage.

Glue the noze balsa blocks together. Then glue the block to F1a and F1b

Prepare the pieces for the cockpit, verify the clearance in between the cockpit spars RSP and

LSP and the available room in between F2 and F4.

Adjust the spars RSP and LSP if necessary.

Mount the formers F4c and F2c on the spars RSP and LSP making sure they are parallele to

F4 and F2 fuselage formers.

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2. Stabilisator

Immobilize the building template on the building board. Make sur it is plane.

Insert the ribs in the template slots

Place the horizontal leading in ply 1mm edge and glue it !

Place the 3mm ply trailing edge and glue it

Place de elevator Leading edge and glue it

Place the elevator trailing edge and glue it

Place the balsa 8x3mm spar

Place stabilisator balsa leading edge and glue it

At that stage you may remove the stab from the template continue with the under side ot the stab.

Place the balsa 8x3mm spar

Remove carefully the building tabs under the ribs

Separate the stabilisator from the elevator by cuting in between the two vertical spars

Glue some 15 x 15 balsa blocks for the hinges

Glus some 15x15 basla on the leading edge fo te elevator and sand it round

The two elevators may be linked by a carbon tube later:

Or you may join the command line at servo side.

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3. Wings

Use a right reference like on the picture the yellow Ruler to align the

trailing edge:

Insert the ribs in the main vertical slotted spar and the horizontal

slotted railing edge maintain all of it with elastic braces so it is aligned with

the ruler.

Place the Decks as well, then when everything fits well, glue

everything together making sure the trailing edge is right.

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At the root remember to respect the 7 grades inclination for dihedral

Once glue is cured, you can glue the top 15x4 spar in place and the top

8x1.5 spar also

Glue the trailing edge diam 5mm

Once glue is cured, you can glue the bottom 15x4 spar in place and the bottom 8x1.5 spar

also

Then start to place the top trailing edge sheeting

Then top leading edge sheeting

Then you may remove the small building tabs on the bottom if your version have it and

place bottom sheeting pieces.

At last the wing tips

Then sanding….