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• Attach the lower fuselage part using  UHU Por ®   or cyano, using the activator spray sparingly 
• Make sure the lower fuselage part is at a right angle (and make sure the elevator has full 
movement range) !

Figure 10:  view of wing / fuselage horizontal piece / tailplane assembly from the top
Figure 11:  separating the two fuselage halves
Figure 12:  gluing the lower fuselage part

END   Page 6 of 12

8) Adding the wing struts

• The wing struts are made from 1.5mm carbon rods
• The joining points are on the fuselage, and the surfaces marks for these are milled and marked
• The strut lengths are approximately 22cm at the front and 21cm at the back
• Avoid sticking to the building board at the outer splices, and consider the following order of 
fabricating:
1. cut the carbon rods to length
2. place wing struts in position and glue to the surface with cyano
3. check the struts are at the correct angle and glue them to the the fuselage

9) Tailplane struts  and Fuselage bracing

• The lower tailplane struts are made from 1mm carbon rods
• The joining points are marked on the fuselage and also on the tailplane
• The strut lengths are approximately 140mm at the front and 150mm at the back
• The tailplane struts are  (as for the wing struts) aligned and then glued
• Then carbon rod bracing is placed over one side of the lower fuselage using a zig-zag method, 
make sure you check the angles !
The length of the struts are:   5 x 110 mm   and  1x 100 mm  (The front strut ends at the wing 
struts!)
Procedure:
• sharpen the ends of the carbon rods slightly (using a mini-drill grinding wheel) so that a maximum 
of 2mm is inserted into the foam
• align the rods and check they are at the correct angles between the horizontal part and the lower 
part of the fuselage

Figure 13:  wing struts, wing surface
Figure 14:  tailplane struts, lower fuselage
Figure 15:  fuselage zig-zag bracing

END   Page 7 of 12

Upper Tailplane bracing and Front fuselage
Be careful with the tailplane bracing and take care to preserve the hinge lines
• Glue the upper tailplane bracing with a small amount of cyano and little activator spray.   
• Do not use UHU Por ®!
• Then attach the front part of the fuselage to the leading edge of the wing -the side markers are 
countersunk into the front wing surface to assist adjustment.

10) Aileron servo / linkage

• Glue in the aileron servo, add the servo horn (add an extension to this horn if necessary)
• Cut a length of 1.5 mm carbon rod (about 160mm)
• Connect the heat shrink tube and glue to the aileron horn

• Tip: place a length of heatshrink tubing between the aileron horn and the aileron pushrod, and  

Содержание GERNOT BRUCKMANN YAK55M

Страница 1: ... no weight increase in comparison to a white foam version has been achieved through the use of particularly light expanded foam and the elaborate colour design on top and on the underside of the model is applied without the modeller having to reach for the airbrush The model is intended for operation in confined spaces and can in appropriate conditions i e low wind also be used outdoors We request...

Страница 2: ...erience Using the described components and construction methods the plane will have a flying weight of about 130 grams Based on many test flights we have found that there appears to be little significant change in the flight and crash characteristics up to a flying weight of about 175 grams If the weight is more than 175 grams then regardless of engine power the properties such as typical Shock fl...

Страница 3: ...rol horns closed loop components and motor mount Figure 1 foam parts without accessories END Page 3 of 12 2 Leading edge of wing Sand slightly one side of the flat carbon strip or clean with alcohol degrease On one side of the carbon strip and on the leading edge of wing apply a thin coat of UHU Por and allow to dry completely Put some foil or greaseproof paper between the building board and the w...

Страница 4: ...he elevator The required width thickness of horn is identified on the printing The two elevator halves are joined with a short piece of flat carbon found in the accessories bag note the gap between the two halves must be correct the best elevators will come from making sure that you have the correct width for the elevator horn Bevel the front edge of the elevator and hinge to the tailplane using t...

Страница 5: ...ne struts are as for the wing struts aligned and then glued Then carbon rod bracing is placed over one side of the lower fuselage using a zig zag method make sure you check the angles The length of the struts are 5 x 110 mm and 1x 100 mm The front strut ends at the wing struts Procedure sharpen the ends of the carbon rods slightly using a mini drill grinding wheel so that a maximum of 2mm is inser...

Страница 6: ...s using 1 mm carbon rod the length of each strut is approximately 15cm Glue the rudder servo in the prepared hole in the middle position above the wings if necessary alter the size of the hole for the servo you will use Important Check the neutral position of the rudder servo and fit the servo arm or an extension servo arm if necessary the servo arm length should be equal on either side The rudder...

Страница 7: ...selage part by about 40mm see figure and glue the ends of the rods in the prepared holes in the leading edge of the wing Adjust the landing gear and glue them carefully through the lower fuselage part at the crossing point of the landing gear carbon rods Then the undercarriage fairings can be bevelled to match the fuselage side and the length of these fairings adjusted the carbon rods should be 2 ...

Страница 8: ...nt Make sure the direction of the surface travel is correct and that the servo movement is not restricted by mechanical binding or by a mechanical end stop can be recognised by a servo humming noise For this model the use of a modern programmable transmitter with switchable rates and exponential is highly recommended Enjoy your flying of this plane and we hope it is very successful When flying thi...

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