Grant describes here his complete production process for an F2C Cooling Duct & Wheel Housing being made as part of his 2010 World Championship defence effort.

Page 1  2

 Click on any picture to see an enlarged view...

clickable image





  11. The cloth and patterns are placed inside a thin stretchy plastic bag (fruit and veg bag)





12. The bag is sealed and vacuumed down.






13. The poly urethane female pressure moulds are placed on top over the plastic bag.





14. A piece of metal is used at the top and bottom the distribute the clamping force from the G clamps. This forces the cloth and resin into the sharp corners of the pattern.






15. The whole assembly is put in the oven at 50 degrees for about 6 hours and afterwards is post cured at 80 degrees for 3 hours.







16. The carbon cooling duct halves after being removed from the Patterns. Ready to be joined.






17. The two halves are aligned for joining using a mandril at the cylinder fins and a mandril where the U/C leg goes.







18. The halves are slighlty roughed with sandpaper and glued together with epoxy.







19. Three holes are drilled beside the U/C leg, 0.35 multistrand control line wire is used to bind around the leg to prevent the mould halves splitting under load, this is then covered with epoxy and micro baloons.






20. Cooling duct / undercarriage mount ready to be installed in the fuselage sides with epoxy/microballon mixture.

Page 1  2

If you have questions about the construction of these items, feel free to post them under a suitable heading in Australian Control Line Forum, where Grant will endeavour to answer them.

Developed May 2010 by David Kidd.  Your Webmaster is Ron Chernich.