10 May 2025, 23:50 [ UTC - 5; DST ]
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Post subject: Re: Diamond Da50 Posted: 25 Jun 2020, 16:06 |
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Joined: 08/04/08 Posts: 1799 Post Likes: +1404 Location: MYF, San Diego, CA
Aircraft: A36
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Username Protected wrote: It weighs a lot empty and even more full. Runway performance was not inspiring. Also only 50 gallons? at 1232 useful load means 3 full size people, and bags. 50 gallons at 9 GPH (marketing number) is 5.5 hours in the air to dry tanks, that is 2+ hours longer than I can go without stopping. They claim 750 NM with VFR reserve, at 9 gph that pencils out to approximately 150 KTAS. I can only assume Diamond is looking at the useful load being more desirable than time in the air. Does anyone know if most of the diamonds are sold outside the US? Maybe it has something to do with certification in Europe? I noticed the max takeoff weight was 1999 KG, is there some cost differential with charges for services with 2000 kg and over in Europe?
There is a threshold that changes fees in Europe, but I think it's set at 3 000Kg. The TBM C1, sold in Europe MTOW is just under 3K, C2s are above. The two are identical apart from that.
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Post subject: Re: Diamond Da50 Posted: 29 Jun 2020, 21:19 |
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Joined: 12/08/12 Posts: 1218 Post Likes: +1609 Location: Ukiah, California
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Username Protected wrote: A small pressurization system would be great.. about 3psi is all they would need to make it very useable in their performance envelope....
Diamonds are nice.. but their resale seems to drops off a cliff at some point Like at maybe 1150 hours (1200 TBR on the engine)? Is there any other aircraft that has a TBR and not a TBO? Dan
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Post subject: Re: Diamond Da50 Posted: 30 Jun 2020, 05:59 |
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Joined: 06/19/08 Posts: 725 Post Likes: +611 Location: Australia
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I'm just going to put a  here to keep up with the chatter. Still a lot to learn about this but the avtur and that fuel burn are temping as long as that TBR isn't a sting in the tail. Oh and the price.
_________________ I like to answer rhetorical questions because who’s to say what’s right or wrong?
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Post subject: Re: Diamond Da50 Posted: 02 Jul 2020, 23:15 |
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Joined: 02/22/10 Posts: 61 Post Likes: +32
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It's pretty sad that a 50 year newer design can't out perform a 1975 A36TN. 50 gallon tanks and 156 kts? I think that they must be going after the air taxi segment. A passenger or two would much rather stretch out in the back of this compared to a Cirrus for those 300-400 mile trips...FADEC will make them "professional pilot" proof as well...I cringe every time I hear that in an ad for a used plane...All that means was that the plane was run hot and hard...30 ROP all the time lol
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Post subject: Re: Diamond Da50 Posted: 03 Jul 2020, 07:20 |
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Joined: 12/24/17 Posts: 1222 Post Likes: +1153
Aircraft: A36
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Username Protected wrote: It's pretty sad that a 50 year newer design can't out perform a 1975 A36TN. 50 gallon tanks and 156 kts? I think that they must be going after the air taxi segment. A passenger or two would much rather stretch out in the back of this compared to a Cirrus for those 300-400 mile trips...FADEC will make them "professional pilot" proof as well...I cringe every time I hear that in an ad for a used plane...All that means was that the plane was run hot and hard...30 ROP all the time lol I couldn't agree more. This is my issue with Cirrus, too. I still can't believe that the turbo'd SR22 can only do 180 kts. The power plant can do so much more. A similar powerplant in the M350 can do 210 kts, in pressurized cabin class air conditioned comfort. And that's with a pretty old airframe design. Where's the innovation in the new planes?
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Post subject: Re: Diamond Da50 Posted: 03 Jul 2020, 23:15 |
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Joined: 08/16/15 Posts: 3359 Post Likes: +4826 Location: Ogden UT
Aircraft: Piper M600
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Username Protected wrote: The power plant can do so much more. A similar powerplant in the M350 can do 210 kts, in pressurized cabin class air conditioned comfort. And that's with a pretty old airframe design. Where's the innovation in the new planes?
Well, actually book speed is 213 KTAS, and it will do that. :-). I usually ran LOP (not authorized), and traded 10-12 knots for 7 gph
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_________________ Chuck Ivester Piper M600 Ogden UT
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Post subject: Re: Diamond Da50 Posted: 04 Jul 2020, 09:10 |
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Joined: 09/23/18 Posts: 131 Post Likes: +31
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I don’t know what percentage of the time piston aircraft cruise at FL250, (Or even above 12,500’) as a matter of practicality, but I suspect the number is very very small.. less than 10% is my guess)...
I would say the above 12,500 speed specs for non pressurized piston aircraft are more about marketing than actual usage
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Post subject: Re: Diamond Da50 Posted: 06 Jul 2020, 04:40 |
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Joined: 01/30/09 Posts: 3630 Post Likes: +2280 Location: $ilicon Vall€y
Aircraft: Columbia 400
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Username Protected wrote: I don’t know what percentage of the time piston aircraft cruise at FL250, (Or even above 12,500’) as a matter of practicality, but I suspect the number is very very small.. less than 10% is my guess)...
I would say the above 12,500 speed specs for non pressurized piston aircraft are more about marketing than actual usage I spend a lot of cruise time in the upper teens. I've flown in the flight levels, but the need for a full mask in lieu of a pressurized cabin and the increasing danger of hypoxia cause me not to choose it. The Columbia 400 does very well at altitude.
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Post subject: Re: Diamond Da50 Posted: 06 Jul 2020, 07:43 |
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Joined: 12/24/17 Posts: 1222 Post Likes: +1153
Aircraft: A36
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Username Protected wrote: I don’t know what percentage of the time piston aircraft cruise at FL250, (Or even above 12,500’) as a matter of practicality, but I suspect the number is very very small.. less than 10% is my guess)...
I would say the above 12,500 speed specs for non pressurized piston aircraft are more about marketing than actual usage Pressurized piston aircraft cruise in the teens all the time. So why isn't the DA50 pressurized? The powerplant presumably could support this. I just don't see why the new aircraft designs are less capable than much older designs with similar powerplants. It's almost like demand for capability - FIKI, pressurization, TC, RADAR, etc. - has dropped in favor of less capable planes with parachutes and iPhone connectivity, and that's scary to me. At some point, the old designs are going to be too old, and there won't be anything to replace them. I do wish Diamond offered a more capable version of this plane, with proper speeds in the 200s, pressurization, and FIKI. Instead of fancy avionics at the tune of $100,000s.
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Post subject: Re: Diamond Da50 Posted: 06 Jul 2020, 10:37 |
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Joined: 09/23/18 Posts: 131 Post Likes: +31
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Username Protected wrote: I don’t know what percentage of the time piston aircraft cruise at FL250, (Or even above 12,500’) as a matter of practicality, but I suspect the number is very very small.. less than 10% is my guess)...
I would say the above 12,500 speed specs for non pressurized piston aircraft are more about marketing than actual usage Pressurized piston aircraft cruise in the teens all the time. So why isn't the DA50 pressurized? The powerplant presumably could support this. I just don't see why the new aircraft designs are less capable than much older designs with similar powerplants. It's almost like demand for capability - FIKI, pressurization, TC, RADAR, etc. - has dropped in favor of less capable planes with parachutes and iPhone connectivity, and that's scary to me. At some point, the old designs are going to be too old, and there won't be anything to replace them. I do wish Diamond offered a more capable version of this plane, with proper speeds in the 200s, pressurization, and FIKI. Instead of fancy avionics at the tune of $100,000s.
pressurized piston singles are unicorns...Pa-46, P210, Lancair ivp.. can’t think of others off the top of my head. and I agree.... it makes no sense to me why diamond da50 and the SR22T are not pressurized..
What makes even less sense to me is how much someone would pay for an unpressurized plane Whos engine is optimized for above 14,000 flight.
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Post subject: Re: Diamond Da50 Posted: 06 Jul 2020, 11:13 |
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Joined: 01/05/11 Posts: 316 Post Likes: +227
Aircraft: 1969 Aerostar 600,
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pressurized piston singles are unicorns...Pa-46, P210, Lancair ivp.. can’t think of others off the top of my head. and I agree.... it makes no sense to me why diamond da50 and the SR22T are not pressurized..
What makes even less sense to me is how much someone would pay for an unpressurized plane Whos engine is optimized for above 14,000 flight.[/quote] Yes.....................finally someone said it.
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