Managed to get a little more work done on the Stealth:

• payload bay canards are in and internal fillets set
• internal fillets on canards
• booster fin internal fillets done
• booster external fillets started

We are still very happy with the method of creating external fillets that uses the following formula:

• 7.5 ml Great Planes 30min Epoxy Resin
• 7.5 ml Great Planes 30 min Epoxy Hardner
• 1 full teaspoon FGCI Phenolic Microballons
• 1 full teaspoon West System 403 Microfibers

We mix the resin and harder first, then the microfibers, then the micro balloons. The resulting maroon paste is very easy to work with and sets up nicely. To date we have never seen a fracture line in any of the fillets we've set with this mixture.

To create the very smooth and even initial epoxy set we soak a short piece of 1"PVC in rubbing alcohol and slowly drag it through the groove between the fin and body wall. You have to be ready to wipe up the extra epoxy that oozes out the back.

After set up its lots of sanding and then filling the gaps with wood filler.

Plan for this beast is our L2 certification on a J425R!!!

Should get the AV bay built over the Xmas break.

Cheers all,

Matt and Nate

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