w1nd6urfa

My Feedback: (4)

Challenge #5: Reinforce firewall

On Corsair #1 I had used the OS 55 AX which flew it decently, but was tail heavy so had to add ~150 g of lead on engine mount (to get to the 85mm CG stated in the CMP instructions!). This engine is now in the FW-190, so after studying the forums on this model I got a OS FS-91 Surpass. This engine at 650 g is 250 g heavier than the 55 AX and is also a 4-stroke so it will balance the model and make it more scale (remember the reason for the Corsair's gull wing was to clear the oversize props driven by the huge 2000 hp engine).

You will need to reinforce the firewall, so use some 30-min epoxy and glass cloth if possible on the firewall perimeter where it joins the fuselage. The engine mount assembly is straightforward, use the lines on the firewall, measure twice as usual dry fit before drilling. Also measure where the throttle rod will go and check that no former is in the way.

While you are adding epoxy to the firewall, you can also add some to the wing saddle part of the fuselage, as it will easliy crack otherwise.