Question for Mike L. about climb rate

[rhysb]

Mau,

I can't see why it would only work with prosim??? It's just a version of the default aircraft it just drops into the sim objects folder like any other plane!

I just tried it with Project magenta as don't have simA and it works with PM

[Maurice]

Mau,

I can't see why it would only work with prosim??? It's just a version of the default aircraft it just drops into the sim objects folder like any other plane!

I just tried it with Project magenta as don't have simA and it works with PM

That's what I thought too. I will definitely try it with SimA.

Thanks,
Maurice

[Maurice]

This is really annoying. I ordered the product and paid for it but I never received a link for the download. So I filled a form on their website addressed to customer support but I get an error & the form does not get submitted.

So for anybody who ordered the Jetstream 737 model, how long did you have to wait before getting the download link?

Thanks,
Maurice

[fsaviator]

Mau,

Log in to your prosim store account.  One the left side you will see a link to your downloadable products.  Click it and you will get to the page with the download link

[Maurice]

Mau,

Log in to your prosim store account.  One the left side you will see a link to your downloadable products.  Click it and you will get to the page with the download link

I did and there is no link that I can see 

Maurice

[fsaviator]

Their website can be confusing.  Log in here:

http://www.prosim737.com/shop/customer/account/login/

First make sure that you can see your order in the "lastest orders" area, and that you have a link to "My Downloadable Products"



Click on "My Downloadable Products" and you get to this screen:



Click on "Jetstream..."

Hope this helps.  If not, your best best is to head over to their forum.

http://prosim737.com/support/support-forum/

[Maurice]

Thanks Warren but I received an email with the link this morning so everything is cool.

Thanks,
Maurice

[Maurice]

Well I finally got to try the Jetstream model with Sim-Avionics and this is what I found out so far. The takeoff & climb to cruise altitude was much more reasonable than with FSX, meaning the climb rate was lower & closer to Mike's figures.

However, once established on cruise & on VNAV, although the speed bug was set to 0.80 Mach & N1 @ 85%,  the indicated airspeed kept decreasing and stabilized at 250 knots with a ground speed of only 420 knots with no wind at all. I don't think this is right so I will have to look into the SimA aircraft.cfg file and try to figure out if there is anything I can do there.

But since I don't really know what I am doing, I may have to go back to the default 800 as I prefer a fast climb and fast cruise than a normal climb & slow cruise.

Anyway, more experimenting to do especially with manual flight as I have not tried that yet.

Maurice

[MLeavy737]

Maurice,
  Just remember indicated airspeed decreases as you gain altitude.  250 indicated at high altitude cruise at .80 could be considered normal. 

Normal climb for us is about 280-300 indicated transitioning to .74 or so until cruise altitude is obtained.  When you transition to Mach the indicated airspeed continually drops the higher you go.

Mike L

[Maurice]

Maurice,
  Just remember indicated airspeed decreases as you gain altitude.  250 indicated at high altitude cruise at .80 could be considered normal. 

Normal climb for us is about 280-300 indicated transitioning to .74 or so until cruise altitude is obtained.  When you transition to Mach the indicated airspeed continually drops the higher you go.

Mike L

I get what you are saying Mike but is 420 or so knots a correct ground speed assuming no wind at at all? This seems rather low to me but I hope I'm wrong.

Thanks,
Maurice

[MLeavy737]

Oh I see what u mean.  Not sure exactly.  Can't remember the last time I saw no wind at altitude I'm sure there's a performance chart I can look into or test on next flight.  I'll let ya know.

Mike L

[Maurice]

Oh I see what u mean.  Not sure exactly.  Can't remember the last time I saw no wind at altitude I'm sure there's a performance chart I can look into or test on next flight.  I'll let ya know.

Mike L

I have never seen no wind at altitude in FSX either. So I'm wondering now whether it wasn't showing in the ND but was there anyway. I have to do another flight with ActiveSky this time and confirm the winds and ground speed again.

Thanks,
Maurice

[rhysb]

Maurice,

That's sounds not far away from reality, I don't have 737 experience like Mike but the 757 is only about 20 knots higher than that under your circumstance and that is a much more powerful airplane.

Maybe your just used to microsofts incorrect performance?

Rhys b

[Jetcos]

Maybe your just used to microsofts incorrect performance?

Rhys b

Aren't we all?

Just saying.......

[Maurice]

Maurice,

That's sounds not far away from reality, I don't have 737 experience like Mike but the 757 is only about 20 knots higher than that under your circumstance and that is a much more powerful airplane.

Maybe your just used to microsofts incorrect performance?

Rhys b

Very interesting!  Since I do not know how a real 737 flies, the fact that the MS version flies faster is pretty much inconsequential and in fact welcomed, but I did discover something I really loved in the Jetstream model and that is how the airplane behaves when the speed brakes are extended while on autopilot.

In FSX, FS9 and likely earlier versions as well, whenever I extended the speed brakes while on VNAV, the plane always slowed its rate of descent as well by raising the nose which meant it then had to dive to regain the correct flight path which also meant it went too fast again. 

So it never reached the next waypoint at the correct altitude seen on the FMS especially if that altitude was not predicted but mandatory. Yesterday, when I extended the speed brakes, the plane just slowed down and maintained the exact same rate of descent which was exactly what I wanted and what I experienced in real planes when the pilot extended the air brakes.

That to me is the biggest improvement so far and enough to stay with this flight model. As I said earlier, I need to do more testing especially with manual flight in case something does not work right with SimA or my hardware, but it is looking very good right now.

Thanks,
Maurice

[Maurice]

Unfortunately, I have to abandon the Jetstream model for several reasons. I'm sure it could be made to work with SimA by tweaking some of SimA settings but I don't want to mess with them since I don't really know what they do.

The good news though is that SimA has their own version of the 737-800 and after trying it, it seems to work like the Jetstream model performance wise but without the issues I experienced with Jetstream. So I will be testing the SimA model more thoroughly and hopefully it will meet all my needs.

Thank you all for your inputs,

Maurice

[Maurice]

However, once established on cruise & on VNAV, although the speed bug was set to 0.80 Mach & N1 @ 85%,  the indicated airspeed kept decreasing and stabilized at 250 knots with a ground speed of only 420 knots with no wind at all. I don't think this is right so I will have to look into the SimA aircraft.cfg file and try to figure out if there is anything I can do there.

In case anyone is interested, Mark from SimA told me how to change the Airline Policy in the CDU. The % N1 decrease at cruise was set too high (12%) and reducing it to 3% allowed N1 to increase above 85% and stabilize at about 86.5%. With that setting, the airplane was able to maintain Mach 0.8 once I was at cruise altitude, so all is well now.

Maurice