H9 Hellcat, mostly stock. Magnum 91 2s engine, Futaba 2.4 radio system, 2300 mah 4 cell battery, 9.3 lbs, 110 flights since last June. Our field is at 3800' ASL. Has a petromat runway, so its a smooth surface.</p>

Added ply behind the firewall and drilled new holes for engine mounting bolts so I could install the engine inverted with a pitts style muffler.</p>

Ran 1/8" dowels through cowl mounting blocks.</p>

Glued strips of flat carbon fiber along the bottom/back of each side of the horizontal stab. So far no flutter.</p>

Needed 2 oz on the tail to balance.</p>

Its a good flying plane. I don't push it, but I fly it quite often.</p>

Good luck,</p>

Brian</p>

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