B25 Manual

 

If you have not worked with foam before, it is strongly recommended that you read the How To section first.
Do not discard any foam pieces that came with the kit, until after the construction is finished.

The Wowplanes B25 is a builder's kit. We assume that the builder has at least an intermediate skill level in building RC flying models and has built kits and ARFs before in balsa if not foam. The objective of this manual is to illustrate the features and construction techniques that are unique to this model.

It is not the intent of this manual to show the basics such as installation of motors, radio, servos, linkages, etc. which are common to all models.

Wowplanes kits lend themselves to finishing the model in multiple ways. The model may be left as bare foam and painted with foam safe paint, or covered with low temperature heat shrink covering, or fiber glassed and painted, or sheeted with balsa and painted, etc.

Before you start building it is recommended that you decide what option you plan to pursue. Depending on the finishing option, you may have to alter the sequence of construction outlined below. e.g. if you plan to sheet the model with balsa, it would be easier to build and sheet the individual sub-assemblies before assembling the whole plane.

Contents
1.0 The Fuselage
2.0 The Wing
3.0 Attach the Wing and Fuselage
4.0 The Tail
5.0 Attach the Tail and Fuselage.
6.0 Finishing
7.0 Center of gravity.

1.0 The Fuselage

   

  

  

      

   

   

  

For information on Liquid Sheet 2 click here

2.0 The Wing
   

   

   

   

  • Cut two spars from 1/8" plywood as shown below

  • Join the 5 wing sections end-to-end. There is no need to sand the dihedral angles, they are already built into the appropriate sections.

      

2.1 Wing Mount

  

   

2.2 Nacelles

  

  

  

      

For information on Liquid Sheet 2 click here

3.0 Attach the wing and fuselage

  

   

  
Alternative location of battery

4.0 The Tail

   

   

   

5.0 Attach the tail and fuselage

  

   

6.0 Motor Wiring


 

7.0 Finishing

Click here: Final Finish
Follow the instructions on that page.
Model shown below was finished with LS2, and painted with one coat grey primer, Krylon spray can paint, and Dupli Color cear top coat.

   

   

 

7.0 Center of gravity

  • The Center of Gravity is located 2.75" back from the leading edge of the wing measured at the root where the wing enters the fuselage.
  • The model should be balance at this point after all the equipment and finish has been applied. This must be the final step. Use the battery location to achieve the balance.

HAPPY LANDING !!