January 23, 201412 yr gborch, That 11 is opposite a cruise altitude of 30000 feet !. I cannot read it, the knob is in the way, so its just a guess ... I don't know if it's broken or not. Some people report that it is working fine. It still may be pilot error... That could be true. It was one of my original questions to someone who had contacted Carenado. All we need to know is how to do it. Instructions. Or a reference to a manual page .. that sort of thing. A screenshot from a working gauge would be helpful also. Best Regards, Vaughan Martell PP-ASEL KDTW
January 23, 201412 yr Author That was me that contacted Carenado. It's been almost two weeks and I haven't heard anything from them.
January 23, 201412 yr That was me that contacted Carenado. It's been almost two weeks and I haven't heard anything from them. Ok. Also, I went and looked .. the 11 (cabin altitude) is opposite cruise altitude 37,000 feet! I think Max alt for the B1900D would be right about 25,000 feet. I know the two engine service is like 33K but .. not for me. I think you have reached the limit for that dial .... Best Regards, Vaughan Martell PP-ASEL KDTW
January 23, 201412 yr www.smartcockpit.com/download.php?path=docs/&file=Raytheon_Beechcraft_1_00D-SYSTEMS_DESCRIPTION.pdf Page 38 talks about the pressurization system
January 23, 201412 yr How can I get the pressure knob dial to set above 10000 ft Cant do it in the 340 or the b200 Keep reading that you guys set for FL 20000 etc HELP I tryed for hours ANYONE ? Thanks in advance KenG can correct me, but I read that you can set the cabin altitude to between SL and +10000 feet. Since the ceiling of the 1900D is ~25,000 feet, that corresponds to a pressure of 5.46 PSI at ISA. Adding the max differential pressure (5 PSI) to that we get 10.46 PSI which is the pressure at 9000ft ISA. So that means there should never be the need to have the cabin altitude set above 10,000 feet since that would mean you are cruising higher than the service ceiling. I just did a first time climb (still learning / reading up on the B1900D) to FL190. This is what I see: So what I see here is this: In the third picture your cabin altitude is reading roughly 4000 feet (you can't see it well because the mixture lever is in the way). At ISA, the pressure at your altitude is roughly 6.8 PSI and the pressure in your cabin is about 12.7 PSI. This is a differential of roughly 6 PSI which is exactly what the other arm of your gauge is showing. Also, if you look at your pressure controller in the second picture, 4 (x1000) is right on the top line which corresponds to your cabin altitude. The only thing that seems possibly buggy, is that the system should be trying to maintain a differential of 5PSI (1900D max differential) by raising your cabin altitude which it is not. I am not sure if you need to flick a switch or if there is a bug. Ok, I did a quick test flight in the Carenado P46T Malibu. I set my desired cabin altitude shortly after departure. Here is what I see on my way up ............. all look like it is working properly to me. I am going up to FL200. Ok, I did a quick test flight in the Carenado P46T Malibu. I set my desired cabin altitude shortly after departure. Here is what I see on my way up ............. all look like it is working properly to me. I am going up to FL200. To me this looks fine. You have your cabin altitude set to a bit over 5000 feet (second picture, gauge at the bottom, little diamond marker). Your current cabin altitude is 5000 feet (second picture, ALT arm pointing to 5000) and climbing (second picture, first gauge arm on the left). gborch, That 11 is opposite a cruise altitude of 30000 feet !. I cannot read it, the knob is in the way, so its just a guess ... This makes sense. That 30000 feet is saying if the aircraft starts climbing above 30,000 feet, the plane will not be able to hold a cabin pressure of 11,000 feet (The 11 is not exactly below 30). OK so reading up, it seems like you guys don't have the Cabin Pressure Dump in the right position. It should be in the middle position marked PRESS.
January 23, 201412 yr Mike2060,Are you flying the Carenado B1900D? Do you fly the Carenado P46T Malibu Jet Prop? "OK so reading up, it seems like you guys don't have the Cabin Pressure Dump in the right position. It should be in the middle position marked PRESS." Where did you read this? That is exactly the type of answer we needed here! I have a follow up question, Mike. How did you get the switch to the "Middle / Pressure" position? Best Regards, Vaughan Martell PP-ASEL KDTW
January 23, 201412 yr "OK so reading up, it seems like you guys don't have the Cabin Pressure Dump in the right position. It should be in the middle position marked PRESS." WHAT It only has 2 POSITIONS DUMP AND TEST It only has 2 POSITIONS DUMP AND TEST but the label when you hover over it in the test position says PRESS.. I aam doing it right that . Please I have 3 of these planes... The DIAL !!!!!! WONT GO ABOVE 10118....... I get alt warn if I FLY over that
January 23, 201412 yr The SETTING:10118 WONT GO FURTHER (( Switch on PRESS )) THE GAUGE Showing In RED THE WARNING: ( Cabin Diff Hi )
January 23, 201412 yr I don't even own this plane yet. I am reading this stuff from a systems description manual I posted above. If there are only two positions DUMP and TEST then that is a problem as TEST will prevent the system from depressurizing (I assume that is why it is going above 5 PSI differential) and DUMP obviously prevents the system from pressurizing. But I believe a lot of people here don't quite understand the system so that is causing some confusion. The SETTING:10118 WONT GO FURTHER (( Switch on PRESS )) THE GAUGE Showing In RED THE WARNING: ( Cabin Diff Hi ) Would it be possible for you to post larger images? If the cabin pressure altitude goes above 9500 feet, the warning annunciator should turn on. But I don't understand why your differential pressure is so high...and you cabin pressure is only about 5000 it seems.
January 23, 201412 yr I don't even own this plane yet. I am reading this stuff from a systems description manual I posted above. If there are only two positions DUMP and TEST then that is a problem as TEST will prevent the system from depressurizing (I assume that is why it is going above 5 PSI differential) and DUMP obviously prevents the system from pressurizing. But I believe a lot of people here don't quite understand the system so that is causing some confusion. Would it be possible for you to post larger images? "I don't even own this plane yet" That is what I suspected. Do you fly the Carenado P46T Malibu Jet Prop? Best Regards, Vaughan Martell PP-ASEL KDTW
January 23, 201412 yr yes I don't even own this plane yet. I am reading this stuff from a systems description manual I posted above. If there are only two positions DUMP and TEST then that is a problem as TEST will prevent the system from depressurizing (I assume that is why it is going above 5 PSI differential) and DUMP obviously prevents the system from pressurizing. But I believe a lot of people here don't quite understand the system so that is causing some confusion. Would it be possible for you to post larger images? yes
January 23, 201412 yr Gborch, You need to zoom in a little on your screenshots so details of what you want to show are visible. I have one question for you. Why do you talk about 10118? As far a I can tell 10118 would be cabin pressure altitude. Best Regards, Vaughan Martell PP-ASEL KDTW
January 23, 201412 yr HEY... OK I read up this pdf www.smartcockpit.com/download.php?path=docs/&file=Raytheon_Beechcraft_1_00D-SYSTEMS_DESCRIPTION.pdf Page 38 talks about the pressurization system When I set the small dial to a rate of 1500fpm ( CLIMB ) my warning went AWAY and... Pressure is correct on gauge.. May have the solutuion Oh my god .. finally.... Of course carenado NO mention of any this ..switch is a bug... if in test position it is really in PRESS mode Make sure to depressurize with both dials 500ft above dest Airport alt and move small dial to desend at your required desent rate.. the dump above approach
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