29 Nov 2025, 10:46 [ UTC - 5; DST ]
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 29 Jun 2014, 23:13 |
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Joined: 01/29/08 Posts: 26338 Post Likes: +13085 Location: Walterboro, SC. KRBW
Aircraft: PC12NG
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Username Protected wrote: That's all there is to it. The extra thrust provided by the second engine results in a little more speed, but much of it is wasted on drag. Note that climb performance generally exhibits a much larger difference between the single and the twin, because drag is much lower at the climb airspeeds.
Thank you. That's all anyone ever needed to say and this thread would be 10 pages shorter. We all need to go back to math class.
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Username Protected
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 29 Jun 2014, 23:15 |
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Joined: 01/29/08 Posts: 26338 Post Likes: +13085 Location: Walterboro, SC. KRBW
Aircraft: PC12NG
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Username Protected wrote: Well David, Jason said what he said. Just scroll up. I challenged it and he blew a gasket and got all defensive. I don't know why he's being so nasty. Maybe embarrassed, insecure, I don't know.
Tyler, You challenged nothing. You offered absolutely zero information on the subject. You sat on the sidelines and lobbed grenades.
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Username Protected
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 29 Jun 2014, 23:20 |
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Joined: 12/16/09 Posts: 7317 Post Likes: +2194 Location: Houston, TX
Aircraft: BE-TBD
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Username Protected wrote: Remember this Jason? It was yesterday. Do you understand how forums work? It's a flow of information. It's the back and forth that leads to final outcome. I made it very clear that I don't design aircraft for a living. Along with the post you just quoted are 10 other posts of me asking questions and throwing out ideas. For you to take the position you took is foolish. At no time did I say "I'm an engineer, I do this for a living and this is the answer. You're taking my post out of context. Go quote the rest of the stuff I wrote. Better yet, why don't you go read it... for the first time. In my opinion, still nobody has come in here and answered the question beyond a shadow of a doubt. As of now, the only difference between a single and a twin of equal horsepower is drag. If that's the case, so be it. I'm not sure I'm buying it but I DON'T KNOW. If I did I wouldn't be discussing it. Hell Tyler, at least I discuss new stuff around here. Perhaps you should stick to the "Should I buy a Beechcraft"? threads. You're boring.
Why so defensive? It's ok to say "I was wrong" or some such thing.
You call me [admin edit] on this forum, you say I'm a horrible debater, that I'm boring, that I sat on the sidelines and offer nothing. I guess you're the dish it out but can't take it type. Not very polite nor gentlemanly. No sweat, I'll give you a wide berth from now on, but I would ask for a little more civility and respect as I think we can all be afforded that in a place like BT. There's no need for your type of attacks, and really I think it's beneath you.
_________________ AI generated post. Any misrepresentation, inaccuracies or omissions not attributable to member.
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Username Protected
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 29 Jun 2014, 23:31 |
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Joined: 01/16/11 Posts: 11068 Post Likes: +7098 Location: Somewhere Over the Rainbow
Aircraft: PC12NG, G3Tat
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Nothing like a Crandall thread, throw in a little Sanderson and things get interesting. Twin engine aircraft are for folks that want the perceived safety of the second engine, not additional speed. I flew back from Key West last night with 4 of my kids at 11:30 at night, pitch black over the gulf side and I just 'felt' better with two engines running. I've now flown the PC-12 and the KA 200. Neither are cheap to purchase or operate especially for an owner flown aircraft. Similar vintage KA are close to the PC-12. For some reason the Pilatus has had very little engine issues of any kind. I've not researched the KA engine issues, if any, in depth. Everything about the Pilatus has really impressed me. I really and truly love my baron, they got that airplane just perfect, but I'll be taking a Pilatus over the King Air. For when it's just me, it'll be the Cirri and the Tesla 
_________________ ---Rusty Shoe Keeper---
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 29 Jun 2014, 23:35 |
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Joined: 01/29/08 Posts: 26338 Post Likes: +13085 Location: Walterboro, SC. KRBW
Aircraft: PC12NG
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Username Protected wrote: and the Tesla  Watch out. I read an article today that said the big manufacturers let Tesla come to market and prove the concept and they don't like what they see. So now they are now going to switch gears and go Hydrogen.
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 30 Jun 2014, 00:17 |
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Joined: 01/16/11 Posts: 11068 Post Likes: +7098 Location: Somewhere Over the Rainbow
Aircraft: PC12NG, G3Tat
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Username Protected wrote: and the Tesla  Watch out. I read an article today that said the big manufacturers let Tesla come to market and prove the concept and they don't like what they see. So now they are now going to switch gears and go Hydrogen.
Yeah, I saw that. Tim will chime in here shortly about fuel cell density and the like. They're actually choosing a fuel cell powered by hydrogen. The real issue is that they see Tesla as a real honest to goodness threat to their organizations and energy sales. Electric can be had from any source.
It's going to be an interesting end game. I've already chosen my side.
Kinda like organic vs Monsanto or bio engineered crops........
_________________ ---Rusty Shoe Keeper---
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 30 Jun 2014, 03:48 |
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Joined: 02/15/09 Posts: 707 Post Likes: +177
Aircraft: 1984 B36TC
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Username Protected wrote: I test drove the Tesla S P85+ yesterday and it blew my mind, just like I knew it would. I'm getting one just so I can bury M5's, AMG E630 and Audi S5's s at the red-light. Nothing would give me more pleasure than seeing them eat dust. Lets hope the race doesn't last longer than a couple of blocks. Bring the Tesla to the track and see how many laps you can make on a single charge at full speed. I betting you don't make five laps. which at PIR (OR) would be about 11 miles. You can't drive your Tesla much past 300 miles at that assumes no mountains. It is only good for local driving at best. The better car and technology is the Ford Fusion Energi. Best of all worlds and works seamlessly. Oh and costs 1/3 the price. And I can drive that car from one end of the country to other if I wanted too.
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 30 Jun 2014, 05:15 |
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Joined: 08/04/08 Posts: 1090 Post Likes: +60 Company: USAF, QDE Press Inc, UAL. Location: Goldsboro, NC (KGWW)
Aircraft: 1962 Debonair B33
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Username Protected wrote: I test drove the Tesla S P85+ yesterday and it blew my mind, just like I knew it would. I'm getting one just so I can bury M5's, AMG E630 and Audi S5's s at the red-light. Nothing would give me more pleasure than seeing them eat dust. Easy Adam, I'll assume you are talking twin (biTurbo) E63, not the Single (NA) variant of the mighty AMG. Everyone knows....... Andy P.S. I have the single and freakin love it.
_________________ Andy "Freewilly" Freeman, USAF UAL 737 CA, IAD CEO/CFO QDE Press Inc GWW, NC
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 30 Jun 2014, 07:58 |
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Joined: 10/27/10 Posts: 10790 Post Likes: +6894 Location: Cambridge, MA (KLWM)
Aircraft: 1997 A36TN
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Username Protected wrote: One can oversimplify the situation a bit and still get a clear picture as to why this phenomenon holds for pistons, turboprops, and jets.
1) Drag increases relative to the square of speed. Therefore, the Baron doing 190 KTAS is producing significantly more drag than the Bonanza doing 170 KTAS. Minor addition: Drag force is proportional to the square of the speed. The power required to offset that drag is proportional to the cube of the speed. When you're talking about the horsepower ratings of airplanes relating to drag, use the cubic relationships. What David said was correct, but could be easily mis-applied.
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Post subject: Re: That PC12 is biiiiiiiig. Posted: 30 Jun 2014, 08:37 |
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Joined: 01/16/11 Posts: 11068 Post Likes: +7098 Location: Somewhere Over the Rainbow
Aircraft: PC12NG, G3Tat
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Username Protected wrote: I test drove the Tesla S P85+ yesterday and it blew my mind, just like I knew it would. I'm getting one just so I can bury M5's, AMG E630 and Audi S5's s at the red-light. Nothing would give me more pleasure than seeing them eat dust. Lets hope the race doesn't last longer than a couple of blocks. Bring the Tesla to the track and see how many laps you can make on a single charge at full speed. I betting you don't make five laps. which at PIR (OR) would be about 11 miles. You can't drive your Tesla much past 300 miles at that assumes no mountains. It is only good for local driving at best. The better car and technology is the Ford Fusion Energi. Best of all worlds and works seamlessly. Oh and costs 1/3 the price. And I can drive that car from one end of the country to other if I wanted too.
you and Todd share the same kool aid water cooler
If you want straight out speed or round the track, I'll bring a wrightspeed x1.
Tesla was built for driving, long distances too. You can go from one end of the country to the other. Interestingly enough, besides public charging stations (there are a lot more than you think there are) you can always connect with others who've gone electric. Think of it like BT but for electric cars.
Comparing the Ford Fusion Energi to the Tesla is actually impossible. One is a four cylinder banger that's trying to say it get 80 miles to the gallon so it can hook onto the Tesla marketing wagon and the other is a pure driving machine that actually does get 90 miles....all the time.
You know the old saying, don't knock it till you tried it!
_________________ ---Rusty Shoe Keeper---
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