jrh
Well-Known Member
This is the one that got me going. I understand that the single engine pilot feels he has nothing to lose by doing it this way, because either way if his engine quits he's along for the ride. That's the risk you assume by flying single engine. Although I personally would like to have enough room to stop if my engine quit prior to Vr!
Well said.
You asked what changed by making the aircraft multi-engine. The whole point of multi-engine is to use the increased performance of the two engines to set yourself up so that you don't get into this predicament. The whole reason to have another engine is so that you will survive this scenario, and the only way to do that is to give yourself adequate accelerate-stop distance on the runway. If all your doing by flying the twin is ignoring the safety margin it can give you, then don't bother flying it! Get a big, high-performance single and stick with that!
I see exactly where you're coming from and I agree, to a large extent. If I always got to pick what type of plane I had under a given set of conditions, your advice completely makes sense.
The problem I have with your logic is that you're basically giving the single-engine pilot a free pass to do whatever he wants, because if his engine quits, he's along for the ride. You're not saying, "This is dangerous, this pilot should not do this," when it comes to departing short strips in a single. However, put a twin in the exact same scenario and all of a sudden you're saying the pilot would be using bad judgement to make the takeoff. To me, that doesn't seem logical. The pilot would be safer if he got out of his twin, walked across the ramp, hopped in a single, and blasted off? I don't think so.
Maybe try looking at it from this theoretical scenario: You're hired to be a forest service pilot and are asked to fly a load of equipment in to and out of a mountain strip. You can have your pick between using a Cessna 182 or a Piper Aztec. You're current and proficient in both models. Theoretically speaking, you look at the performance charts and find each plane has identical takeoff ground rolls and climb rates for the conditions (I know the Aztec would normally perform better, but let's say if you choose to take the Aztec your boss will throw in more equipment and increase your gross weight). However, neither plane will be able to accelerate and stop using the given runway. Which plane do you take? Or do you just refuse to make the trip on the grounds that it's inherently an unsafe operation?
I'd take the Aztec in a heartbeat.
But really, I think we're getting too caught up in this single/multi issue. My original point that I keep trying to make is that risk management is a very dynamic skill. "Safe" is a very relative term from pilot to pilot. Obviously there are things that are very safe, things that are very unsafe, and I believe there is a huge grey area in the middle. That's all I'm trying to say.
My point is that along with the increased performance of a twin comes an implied obligation to utilize it correctly. You would only be safer in a twin if you allow the aircraft's performance to keep you alive when you lose an engine! That's why I say this has nothing to do with Part 91 vs. Part 121.
Ok, I see where you're coming from, and I'm not saying you're wrong. The only reason 91/121 got drug in to this conversation was because there are some things (accelerate-stop, for example) that are absolutely, positively, legally, limiting factors to a flight under 121, while in part 91 the rules are much more open to utilizing pilot judgement. I believe there is more than one way to skin a cat when it comes to flying, and most cats can be skinned *reasonably* safely as long as the cat skinner knows what he's doing. Using the issue of accelerate-stop performance as my example was probably a lousy idea.
How about we agree to disagree on certain specific points and both have a nice day?