BVM KingCat Build

Author : Dave Wilshere
Date : Dec 03

I've just finished and test flown a BVM KingCat. Total build time was around 8 days with the majority of the works done during late evenings!

This was my first BV kit, as an ARTF there is not much building to be done, it's mainly assembly work.

You need a good assortment of US/Imperial tools for the accessories supplied.
US taps 4-40, 6-32 and 1/4-20 are used. A straight and ball ended 3/32" driver is handy.

Some Reference Conversions For You:
#33 drill (0.113") is 2.87 (2.9mm)
#43 drill (0.089") is 2.26 (2.3mm)

Some kits have the NC-2 former installed at the factory-it is worth adding an additional bead of glue around the back edge at this time.

Use a Razor saw to cut out the nose door - A cutting disc is never as neat!
The nose door is designed to close in flight using the air stream, which it does, but having the door hanging down while you transport the model is not ideal.
Fit a light band through the ply bump stop and around the nose oleo (use a spot of CA to hold it)

When you cut the main leg openings around the wheel and lower leg-use the marked outline on the fuselage as a minimum opening.

Use the slot in the main gear cover plates to open the width of the oleo section, this helps brake tube clearance around the oleo.

When making the hole in the main cover plates for access to the inner wing fixing screws allow a reasonable size (6-7mm) or fit a short length of tube to the inside of the cover plate to act as a guide. (The screws are deep in the holes and could fall out inside)

If you like "wheely" landings and fly on tarmac it's worth adding a wire skid along the lower edge of the rudders to stop scuffing.

The fuel tanks give around 4.9ltrs capacity! My Graupner JetCat P160 powered model had five flight all over 12 minutes and each flight had 1/2 litre of fuel left plus the UAT!!! One flight was over 15 minutes and still had plenty of fuel left...

Up elevator mix is needed with flap.

Opposite aileron is needed for clean knife edge flight. Figures in the manual are a good starting point.

This aeroplane couldn't be easier to fly! , it does not have any vices that I could find and for a 35lb model it lands SOOOOOooo Slowly.

I used the new JR 8511 (15kg) servos on Elevator and Ailerons and JR 8321 (9.0kg) on Rudders and Flaps.

Dave Wilshere
Dec 03