Horizon Hobby HANGAR 9 Composite QQ Yak-54 2.6m Manuel D'utilisation page 62

fUEL TANK INSTALLATION fOR STOCK MUffLER
7
Using a drill and 1/8-inch drill bit, drill through the marked location.
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8
Using a sanding drum and a drill or a rotary tool, open up the hole to 3/8-inch
.
9
Install the Hangar9 fuel filler and T.