Based ont thier comments, the two on Simmarket that rated this aircraft 1 Star are lost in outer space.
IRIS DA-42 Twinstar Released
- Thread starter Ark
- Start date
Based ont thier comments, the two on Simmarket that rated this aircraft 1 Star are lost in outer space.
S
stephcx
Guest
DA42 CG
Well, I didn't wait for the eaglesoft to be out to fly a good version of the DA42.
The only problem that I will find is the CG calculation on the DA42 seems to be a little off the chart. I explain:
When loading the plane, I found that after unloading the rear passenger (to get rid of the "weird" guy in the back which appear in the VC) my CG was too much forward according to the chart in FSX.
(Comparing to the doc of the DA42 (from Diamond aircraft) that would equal to a CG between 93-94 which appear to be off the permissible CG range.)
Didn't feel comfortable with the results I got in FSX , I took pen and calculator and calculate the CG with the default loading in FSX, I got a CG of 97.25 which look good in the CG range chart of the official doc from Diamond Aircrafts but in FSX the CG is too much forward around 94.2.
All that to say that the DA42 from Iris needs to much pulling on the yoke to take off at almost max weight, and too much trim to make it fly level which appear to be challenging due to the CG limit off chart especially when the aux tank are getting empty (cg off chart forward).
Soooo, the DA42 is a nose diver, I intend to send an email to the IRIS support for them to correct the CG calculation in the airplane .cfg (I don't know how to do that).
Other than that taking off with slight crosswind can be challenging as well, according to Diamond Aircraft, the slight use of differential brake can be made during take off
.
P.S: the DA42 is version 1.0, I hope they will correct bugs
Well, I didn't wait for the eaglesoft to be out to fly a good version of the DA42.
The only problem that I will find is the CG calculation on the DA42 seems to be a little off the chart. I explain:
When loading the plane, I found that after unloading the rear passenger (to get rid of the "weird" guy in the back which appear in the VC) my CG was too much forward according to the chart in FSX.
(Comparing to the doc of the DA42 (from Diamond aircraft) that would equal to a CG between 93-94 which appear to be off the permissible CG range.)
Didn't feel comfortable with the results I got in FSX , I took pen and calculator and calculate the CG with the default loading in FSX, I got a CG of 97.25 which look good in the CG range chart of the official doc from Diamond Aircrafts but in FSX the CG is too much forward around 94.2.
All that to say that the DA42 from Iris needs to much pulling on the yoke to take off at almost max weight, and too much trim to make it fly level which appear to be challenging due to the CG limit off chart especially when the aux tank are getting empty (cg off chart forward).
Soooo, the DA42 is a nose diver, I intend to send an email to the IRIS support for them to correct the CG calculation in the airplane .cfg (I don't know how to do that).
Other than that taking off with slight crosswind can be challenging as well, according to Diamond Aircraft, the slight use of differential brake can be made during take off
.P.S: the DA42 is version 1.0, I hope they will correct bugs
DA42 CG
Maybe just a final note for other new people like myself, to save some frustration:
remember that you have to set the trim indicator, the black hash mark on the white bar located on the console between the pilot and co-pilot, to it's "T/O" position before take=off.
With the trim hash mark set to T/O, punch the throttle full open, and the plane will launch into the air on its own, no throttle pull back required, after a fairly short run, even without flaps.
Of course, It may also have helped that I removed the 30 lbs. of cargo out of the nose compartment.
There is one oddity in the aircraft.cfg you may want to correct. In the weight and balance section , the pilot and co-pilot are off-set from the center line by -1.5 and 1.5 respectively. But the left rear passenger and right rear cargo are off-set 00, 00. In effect, the rear passenger is sitting in the middle of the rear seat with her 50 lbs of luggage on her lap.
So change the right rear cargo off-set to -1.5 and the left passenger off-set to 1.5. This can make it easier to balance out and keep the plane from rolling in the direction of the heavier pilot if you decide to remove the rear passenger.
Note this also applies to the Iris' Diamond Star single as well.
Sorry for such newbie statements which I'm sure most people here know, but as said maybe some help for other new people like myself.
Thanks - Rob
PS maybe should add that the trim wheel on the console isn't mouseable, so you'll have to use the trim keys on your keyboard.
Maybe just a final note for other new people like myself, to save some frustration:
remember that you have to set the trim indicator, the black hash mark on the white bar located on the console between the pilot and co-pilot, to it's "T/O" position before take=off.
With the trim hash mark set to T/O, punch the throttle full open, and the plane will launch into the air on its own, no throttle pull back required, after a fairly short run, even without flaps.
Of course, It may also have helped that I removed the 30 lbs. of cargo out of the nose compartment.
There is one oddity in the aircraft.cfg you may want to correct. In the weight and balance section , the pilot and co-pilot are off-set from the center line by -1.5 and 1.5 respectively. But the left rear passenger and right rear cargo are off-set 00, 00. In effect, the rear passenger is sitting in the middle of the rear seat with her 50 lbs of luggage on her lap.
So change the right rear cargo off-set to -1.5 and the left passenger off-set to 1.5. This can make it easier to balance out and keep the plane from rolling in the direction of the heavier pilot if you decide to remove the rear passenger.
Note this also applies to the Iris' Diamond Star single as well.
Sorry for such newbie statements which I'm sure most people here know, but as said maybe some help for other new people like myself.
Thanks - Rob
PS maybe should add that the trim wheel on the console isn't mouseable, so you'll have to use the trim keys on your keyboard.
wallyboard
Charter Member 2011
Update available from the Iris sight addressing some of the issues;
http://www.irissimulations.com/product-pro-da42.php
http://www.irissimulations.com/product-pro-da42.php
On a reply to another thread, I mentioned that I was seeing several issues with flying this airplane. The update fixed almost all of it. It's still a bit hard to handle on the ground but even that is quite a bit better. Now, I can enjoy it. I don't know how close the ideal the flight model is, but I feel better about it.
Glenn
Glenn
DA42 Patch
...except the patch reversed the rear right cargo and rear left passenger weights: the center line offset for the rear right cargo behind the pilot should have been a minus amount (-1.5), same as the pilot, and the rear left passenger behind the female co-pilot should have been a positive amount (1.5), same as the female co-pilot.
The minus/positive values were reversed, so you now have 110 lbs of weight behind the 170 lb pilot, and 50 lbs behind the 120 lb female co-pilot. The result being that the plane now rolls a bit to the pilot's side.
I'm kind of sorry now I brought it up. Oh well, it's easy enough to fix.
But just in case there's any doubt, once you get past all these little fix-its, this little twin is just a hoot to fly. I think I'll kick little sister and her luggage out of the back seat, and fly around Australia...
Thanks - Rob
...except the patch reversed the rear right cargo and rear left passenger weights: the center line offset for the rear right cargo behind the pilot should have been a minus amount (-1.5), same as the pilot, and the rear left passenger behind the female co-pilot should have been a positive amount (1.5), same as the female co-pilot.
The minus/positive values were reversed, so you now have 110 lbs of weight behind the 170 lb pilot, and 50 lbs behind the 120 lb female co-pilot. The result being that the plane now rolls a bit to the pilot's side.
I'm kind of sorry now I brought it up. Oh well, it's easy enough to fix.
But just in case there's any doubt, once you get past all these little fix-its, this little twin is just a hoot to fly. I think I'll kick little sister and her luggage out of the back seat, and fly around Australia...
Thanks - Rob
DA-42 Twin Star Version 1.05
A very big thanks to everyone who provided constructive and informative feedback here on our 'sticky' thread on this forum, via our support ticket system and our official forum, we have now been able to address some of the issues being experienced by various customers with version 1.00 of the DA42 Twin Star product.
The link below will take you to the product page where you can download the Version 1.00 - 1.05 hotfix for the DA42 Twin Star.
http://www.irissimulations.com/product-pro-da42.php
Thanks go to RobM for pointing out my stupid typo. (yes, I also get my left and right mixed up when driving too! lol) Some additional instructions are on the IRIS forums on how to correct that oversight.
We are working on version 1.2 which will include the fictional 'analog' version... initial test are good though, with my rig going from 25 FPS to 45 FPS without the G1000 in..
Regards
David.
A very big thanks to everyone who provided constructive and informative feedback here on our 'sticky' thread on this forum, via our support ticket system and our official forum, we have now been able to address some of the issues being experienced by various customers with version 1.00 of the DA42 Twin Star product.
The link below will take you to the product page where you can download the Version 1.00 - 1.05 hotfix for the DA42 Twin Star.
http://www.irissimulations.com/product-pro-da42.php
Thanks go to RobM for pointing out my stupid typo. (yes, I also get my left and right mixed up when driving too! lol) Some additional instructions are on the IRIS forums on how to correct that oversight.
We are working on version 1.2 which will include the fictional 'analog' version... initial test are good though, with my rig going from 25 FPS to 45 FPS without the G1000 in..
Regards
David.