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spilok

I really love the Carenado P46T Malibu PropJet....but

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I love this plane more than any other that I've downloaded in a long time. It's beautifully designed, has great sounds, and flies beautifully. However, I can't seem to get over 173 kts (approx) without going into overspeed. Why can I go faster in a simple prop GA than in this PropJet? Is this normal for this plane?Stan

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On the real plane, this might be a certification based problem which I think was mentioned by the FDE dev. The real plane is reasonable fast and efficient at high flight levels, so the rw drivers may not notice this downside as much as the sim ones do as they take off and climb fast.If it's just about the overspeed warning flag, you could alter the aircraft.cfg setting which is in the [Reference Speeds] section and should read max_indicated_speed = xxx. I don't own her yet, so I can't help you in detail. But that's the setting triggering the warning if my mind doesn't trick me.Another 'I hope I'm right item' is the fact that the JetProp is a converted piston engine plane. So you already get some effects from the extra power and altered engine model. For example, I think I've read that the higher speed leads to a different pressure based force on the gear system, leading to an 'unsafe gear warning' if not corrected. The now higher cruise altitudes may also contribute to some changes being necessary when it comes to the temps in the cabin.I've found some texts on this.

The Malibu, for example, manages about 210 to 220 knots true airspeed up at about FL230 while consuming about 22 to 24 gallons per hour. It needs about 2,550 feet of take-off space to clear a 50-foot obstacle and climbs at about 1,200 fpm.The aircraft converted to the JetPROP DLX turns in between 250 and 270 knots true, can cruise as FL270, consumes about 30gph and needs 1,200 feet of runway to clear that same obstacle.
http://www.avbuyer.com/articles/detail.asp?Id=1585

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Humm, I also love this plane but I never noticed the overspeed issue. I thought I had it up to 185 kts. without a warning. I will give it another go and see what happens.OK just gave it at test. I get my first warning at 174 kts. and overspeed beeping at 180 kts. I didn't check the specs I thought this was incredible. I will read some more.

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Thanks for the info. I tried tinkering with the "Reference Speeds" and increased the reference from 175 to 195 kts. When I tried the plane, it didn't make a difference in the speed warning. Still around 175 or so. I haven't had her up to FL230 yet. Just did some short hops.Also, wonder if there is a way to bring up True Ground Speed anywhere on the panel. I haven't been able to see that reading.Stan

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Those FL200+ sound familiar for the turbine powered planes in that class. The rw folks aim for nice speeds plus low FF rates which only happen up high, while we sim flyers often stay low to watch that scenery. :( And you are right, that's where the rather low limit of those 175 kts IAS might prevent some fun if you were looking for low and fast. How about the Lancair for this chapter?Ground speed (GS) can be read on the GPS. I could think of the G500 panel also showing it though, so you may have three devices telling you that one. If you were looking for the TAS (True Air Speed), that's a GPS thing too, at least on the RXP units. Must be somewhere around that density altitude screen.

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I wanted to edit, but double posted. :blush:So I may add the Bronco for low and fast stuff.

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I bought the Carenado P46T and have been flying it quite a bit. The RW plane will go over its Vmo of 172 knots in level flight at lower altitudes (maybe up to FL190?). The P46T has been in a higher than average number of accidents because of pilots not keeping up with what the plane is doing. It is a converted piston and it was easier to certify by leaving the Vmo alone. The Piper Meridian (P46-500T) has a higher Vmo although the performance is about the same. What this means is that the plane must be flown at higher altitudes where 172 IAS means a far greater TAS. There is a pic on the internet of a RW P46T getting a 430 knot ground speed at FL280. It also means that the engine power and speeds have to be monitored carefully on climb and descent.Ben

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I love this plane more than any other that I've downloaded in a long time. It's beautifully designed, has great sounds, and flies beautifully. However, I can't seem to get over 173 kts (approx) without going into overspeed. Why can I go faster in a simple prop GA than in this PropJet? Is this normal for this plane?Stan
The VNE of the P46T is 172 knts indicated. Why would you want it to go past VNE? This is a GA plane, it just happens to have a turbine engine on it. Eitherway, the red line (again, VNE) on the instrument is an absolute value you shouldn't go past.
True Ground Speed
There's no such thing. True airspeed is airspeed corrected for density altitude and temperature. Ground speed (read on the GPS) is self explanatory, of course. True airspeed at altitude will generally be higher than indicated (indicated is what you read on the instrument).

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Also, wonder if there is a way to bring up True Ground Speed anywhere on the panel. I haven't been able to see that reading.
Ground speed is above the speed tape on the G500 and TAS is below the speed tape.

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Stan, we often complain about airplanes not being "as real as it gets"..Well this is reality for this airplane - so why try to change it?You want to fly this airplane fast, go up to 20,000 feet +That is how it is flown in real life!

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Guest jahman

Try the Adacalc free air calculator: 178 KIAS = 241 KTAS @ FL200 (ISA).Cheers,- jahman.

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True airspeed is airspeed corrected for density altitude and temperature
Hey Zach,Considering your a CFI, I'm sure you meant to say, "True airspeed is airspeed corrected for Pressure altitude and temperature". Density altitude as you know, is corrected for both pressure and temp.I don't wanna sound like a jerk correcting you, but I figured you overlooked this (as it's easy to do) and Nate might appreciate the correct info to pass it on at a later date.:)JB

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Hey Zach,Considering your a CFI, I'm sure you meant to say, "True airspeed is airspeed corrected for Pressure altitude and temperature". Density altitude as you know, is corrected for both pressure and temp.I don't wanna sound like a jerk correcting you, but I figured you overlooked this (as it's easy to do) and Nate might appreciate the correct info to pass it on at a later date.:)JB
Absolutely right. Thanks Jack. I'm prone to over looking things when typing and posting. :(

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Guest bstolle
The VNE of the P46T is 172 knts indicated. Why would you want it to go past VNE? This is a GA plane
Just for clarification, there's no Vne on the P46T. 172 is the Vmo

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Just for clarification, there's no Vne on the P46T. 172 is the Vmo
Nevermind. I got it.

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Back to the overspeed issue, this plane has long thin wings, reminding me of a U2 aircraft.Pressurized cabin, designed to fly fast at altitude.These same wings are less effective at lower altitudes with higher wind resistancewhere a conventional wing design would work better.So the recommended technique is to climb at roughly 140 knots until you getto cruise altitude and then let the autopilot take you to your destination (in the Bahamas, maybe) :(

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Bert (and others),GREAT explanation about the physical characteristics of the Malibu PropJet. The "thin" wings makes sense to me. I need to take this bird up to altitude and see how she performs. Nonetheless, I still think this is one of the best planes I've ever flown in FSX.Thanks again for your responses.Stan

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Johnny come lately here: Found this thread looking for JetProp mods to allow the plane to be a 2012 Meridian, performance wise. I'm with Spilok... This is an awesome plane... but it's too slow for my taste. Even at FL's, I'd say the average GS is between 230/260. A run I did from KHEF to KMRH (Va to Nc), 57 tailwind, FL270, only peeked at 275 GS. Same conditions with the RealAir TB Duke ripped the sky at 370 GS! The Epic LT runs about the same, but it's kind of a cheesy design by Lionheart. For myself, I only like to fly planes that a RW single pilot can fly.. Ya know... Lottery Planes. Thats just about every TP plane on the market today, with the exception of the commercial bus with wings TP's. Two planes I'm wishing for are the TBM 850, and a real Avanti P180 II (Not that POS by Abacus)... The ultimate lottery plane. Carenado is doing a King Air C90, but they can't seem to know is 2012. Previews show no Pro Line 21 on the dash.

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I get 230+ KTAS out of her on a regular basis. We've tried some flights in this thread and it seems that the comfort of running the reliable turbine plus some passengers and baggage, AC and 'known icing' capability is paid in some speed (loss). At least in regard to some high performance piston planes.The T Duke adds a 'ton' of fuel costs for the gained speed, but is a truly nice plane too, that's for sure.

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Carenado is doing a King Air C90, but they can't seem to know is 2012. Previews show no Pro Line 21 on the dash.
Quite a few of the people waiting for the C90 are happy that it isn't a glass panel aircraft. I don't have much preference, but the traditional panel is fine by me. They have released a few aircraft with glass, and their upcoming SR22 will have a glass cockpit.

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Audio; Having a C90, or any kind of King Air is welcomed by me!! But my line of thinking is... In the sim I can fly anything.. So why not a new model 2012 King Air. If I was able to buy a RW King Air, like most people, I might have to go the used route... but if we had the bucks... Of course we'd all buy a NEW one. Why not do both glass and steam for that matter? I understand it takes allot of effort, and maybe some legal headachs for those products... But it would be real nice to fly a new King Air with all the latest improvments... not just the Pro Line package.CoolP; Its a sweet plane. They did a great job. In fact the JetProp has better performance then the new RW Meridian. It's my number 1, followed by the TDuke, Carenado B58, and Eagle Soft Sr22T

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In addition to what Shane mentions, it also might be that the Carenado folks only had RL access to the C90 being modeled here, and not a current model outfitted with the Pro Line. I am personally looking forward to the C90 and with the FDE master himself, Mr.B. Stolle having done the FDE should make this another winner. Sorry I got OT....Best, Jeff

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I'm eagerly awaiting the C90.... Interesting that they started it at the end of 2011.. started and finished a JetProp... and are still milling the C90. Extra Care/Details??Shame this is the only King Air by 3PD's (we are not allowed to speak of the "other" one in moth balls).On a side note; I'm headed to Air Venture this year... Hoping to convince a Beech rep. that I'm a high roller... and need a "Demo" flight in one... you know... for consideration in my company fleet!

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