This is all about skill building in more complex airplanes... I own a single, I love my single.. and maybe someday I will move to a twin as a permanent home. I flew a 340 recently and I loved it. Roomier, more stable and easier to fly (When things go well) ... of course at additional expense on every level.
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now back to the which plane... now that I have clarified that I need a 9000’ minimum single engine altitude requirement... any new suggestions?
First part: Just the desire for more skill by itself is, IMHO, not a good reason to train and then fly a twin... unless... you have the discipline and the considerable money to fly very very regularly and make VERY sure the emergency procedures don’t slip AT ALL.
This is where twins can be much more fatal than a single. You mess up and don’t instantly establish best glide, whatever... when the engine quits, you can still fix it. In SOME twins... you have 10 seconds to stop a Vmc departure roll maximum and there IS enough time to do that ... consistently, accurately, and in no real rush, IF you’re really right in the game mentally and ready for it in every takeoff.
Also the vast majority of the twin fleet until you get to almost cabin class or ones with upgraded engines or turbos, won’t climb at your desired 9000’ DA. Flying them up here we are pre-accepting an off airport landing or a through the fence landing with the tires smoking before the throttles are pushed up, for an engine failure below a certain height AGL. It’s just physics, heat, and available horsepower.
We can mitigate it SOME with lowering takeoff weight but you still have to do everything correct, precise, and reasonably fast without rushing to dump that prop drag on the dead side.
So... I have NO problem with your desire to further your knowledge of flight. What I want you to realize is flying twins at high DA brings with it some built in hazards that need the pilot to have a zero-tolerance for their own complacency. Feel that complacency sneaking in, ask a MEI to work your butt off in your airplane with emergency procedures and air work.
In fact just schedule it. Kinda like new Instrument pilots who aren’t flying in sooo much need to schedule mental workouts with an instructor and do IPCs for a while IMHO.
After a while it becomes second nature. But it also disappears when you haven’t flown in a while like any skill. The problem is, this one degrading can kill ya real real quick. Getting a little complacent or sloppy in most singles, just won’t. (Exclusion: Taildraggers. Haha)
Anyway there’s the speech. My ME instructor has numerous tales of very very sad crashes where someone with the money bought a very capable twin, flew it for years, maybe even asked for a flight review from him years ago where he beat the pilot up pretty good and got them back to minimum standards... and then he reads the accident report was a Vmc roll on final to a completely wide open area airport, lower altitude than here, and the engine failed at high altitude in cruise. Absolutely no reason at all for the pilot and passenger to be dead, other than complacency and poor altitude and energy management.
The best way I can describe it succinctly is this. Twins need to be flown like professionals fly airplanes. If you’re up for that, I’m never going to say don’t join the twin club if you have the money and time to stay proficient. It’s fun. They do offer security over hostile terrain. The nice big ones fly faster (at an enormous fuel and maintenance cost). They are usually wonderful IFR platforms. Etc.
Just be mentally prepped to fly it like pros fly them. It’ll keep you alive. Cool?
Others have listed off some twins that can do high altitude ops with more ease than most. They’re spendy. I disagree with the Aerostar even though I joked about it, but someone else mentioned it. It would be fine but it does chew up an impressive amount of runway. Limits airport options or useful load if you’re being safe and planning. At least from what I’ve read about them.
I missed your load requirements but around here in the summer, the training twins are two seaters. It’s fairly rare to stuff another student in the back seat. Eye opening, too. Climb rate on both engines is crap. One engine, you’re going down at some rate between 200 fpm - over 500 fpm depending on altitude you started at.
Seriously love flying them but built a very healthy respect for their ability to kill you real fast, too. I’m way more likely to walk away without injury from an off airport landing in my 182 than even a slow trainer twin. Helps that the 182 has a STOL kit. Force squares with speed... more force when it stops suddenly more ouch. LOL.
Speech over. If you’ve got the lines for a twin that’ll fly well at your DA and plenty of extra for the fuel and maintenance and all that AND money to stay proficient... definitely buy one. And fly the hell out of it.
I’m currently grounded so, I miss it. I’ll tell everyone to buy everything and fly the snot out of it. Screw the lawn, hire somebody to mow it. Hahaha.