Dave McDonald
Posts: 1327
Joined: 1/4/2002 From: Eldon, MO, USA Status: offline
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Dean, I define "Unlimited Vertical" as having enough excess thrust to accelerate out of a stationary hover. Take a close look at the hovering Stickit photo I posted earlier. Notice that the throttle stick is only at half power during the hover, which leaves plenty of reserve power to punch out of there. The OS 40FP with a Mousse Can Pipe will provide unlimited vertical to a Stickit.....until you reach about 4.5 pounds flying weight. But 4.5 pounds is way overweight for a Stickit, and nearly twice the weight of the Smith Super Special. I love my 40FP engines! In fact, I own 7 of them. True, they're not very powerful compared to other 40s, but don't compare the 40FP to other 40s. Instead, compare it to other engines that weigh the same as the 40FP.......such as the expensive ball bearing 25 or 32 engines. Then the 40FP begins to shine! In that weight class, the 40FP has very good power, is extremely reliable and trouble free, and responds very well to a MCP. But the best thing about using a 40FP on a Stickit is the throttle response. The 40FP is perfect for hovering and low level goofing around because the engine responds instantly and precisely to even the slightest changes in throttle commands. My OS 32, Webra 32, and TT Pro 36 can't even begin to compete with the precision throttle response of the 40FP. The only engine I've found to be equal or better than the 40FP for hovering and goofing around with a Stickit type plane is the Thunder Tiger 42GP with a MCP. It weighs slightly more, but the 42GP has more power than the 40FP....and still has that perfect throttle response that's needed for hovering.
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McDDD ProBro 415
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