DelphinDriver said:
Although Lance, the previous owner and designer of the Lancair 320/360 will disagree, he redesigned the tail in later 320/360 models to relieve the aircraft of the inherent stability problems (see this article)
http://www.eaa1000.av.org/fltrpts/lanc360/hq.htm
In all justice though all of the buyers were well off privates with mooney or bonanza time and considered themselves a cut above the rest. Scared the hell out of most of them.
I agree with cherrybomb, this airplane as tested is Neutral to negative stability at best.
As your article states, and as you refer to the potential buyer (Mooney and Bonanza types) of the aircraft it discusses FAR part 23. This is an expermental aircraft, not only because it is built buy someone with potenetially little formal training, but because it will never pass alot of the requirements for a Part 23 Certificate. Again
ALL Lancairs are POSITIVLY STABLE. Stability comes in a wide range, from very stabile and docile 172 that are trainers with little manuverability to very manuverable and less stable Extra 300. Its all a trade off. Stability, Manueverablity and Controlablity are all different from each other and only loosely related to each in each others function.
Lancair's get it's speed from a very clean and efficient airframe and slightly less then PART 23 requirments for stability. If you are trying to compare aircraft, then don't compare "apples to oranges", ie. mooney, bonanza's and the like. I have personally flown the ES with Full fuel and four Adults and Bags at Full Gross wieght, never came close to the aft CG and still climbed at 800 ft a min/160KTS to 10,500 msl @ ISA +14, AN then accelerated into a 215 Knots True Airspeed Cruise, While burning 13.0 GPH. Neither a Mooney/Bonzanza nor a 206 could acheive this without a
slight reduction in stability and other parameters required by FAR23. Does that make the aircraft unsafe, no, Only the pilot operating it without proper training.
Less stabilty is just more workload. I have flown all the models from the 320 through the Turbine IV at
ALL spectrums of CG, Full aft and Full Forward, and have NEVER found anything that wasn't going to be expected for such conditions.
Type specific training is required to "unlearn" some of the techniques that an instructor taught during inital flight training to be safe. Simply put, apllying what you already know form a Cesnna, Piper Beech Mooney is unsafe. Period. You need to be responsible and
LEARN about the aircraft that you intend to fly. A Single Engine Land rating is simply not enough to undertake a high performance airplane like this. Yes, accidents do occur, but its the pilots fault, not the airplanes fault.
V1