General Category > Unofficial F/A-18 Acceleration Pack board
A little more flying quality info on Dino's T-45
average_joe:
Had a few beers with USMC pilots that flew the T-45 in flight training. I bounced off a few impressions of my flying Dino's T-45. Their responses follow:
1. They confirmed approach speeds in the 120-125 KIAS regime.
2. They confirmed the engine response to throttle movement was slow ... both increasing and decreasing RPM. Dino is close ... I would suggest increasing responsiveness about 10%. Pilots confirmed that one had to anticipate power corrections and give engine time to spool up. Flying with speed brakes out in the landing pattern helped but didn't eliminate the problem.
3. Aircraft response to speed brake deployment not correct in Dino's T-45. Yes the speed brake deployment will cause a rather severe pitch up but that was solved by a speed brake - stabilator interconnect. When speed brake is deployed the stabilator moves automatically to counter any pitchup. There is a slight pitch up ... pilots said maybe a degree of pitch up.
By the way I looked at Dino's .AIR file - the Cm due to spoiler value. It was zero. So I don't know how he modeled speed brake deployment.
4. Top end speed was close to Dino's. When I showed them some acceleration times, the said it was too quick. I would work on the parasite drag value. But as I understand it FSX has overpowered military engines.
5. The airspeed on the HUD seems a bit high for the corresponding Mach on the HUD. I was at 5000' showing 505 knots and .78 M. If 505 Knots is true airspeed the the numbers are close but in that case the HUD should display Indicated airspeed ... in the 470-475 regime.
neutrino:
--- Quote from: average_joe on March 24, 2010, 02:23:18 am ---Had a few beers with USMC pilots that flew the T-45 in flight training. I bounced off a few impressions of my flying Dino's T-45. Their responses follow:
5. The airspeed on the HUD seems a bit high for the corresponding Mach on the HUD. I was at 5000' showing 505 knots and .78 M. If 505 Knots is true airspeed the the numbers are close but in that case the HUD should display Indicated airspeed ... in the 470-475 regime.
--- End quote ---
The HUD shows indicated airspeed. At 5,000' and standard atmospheric conditions the KIAS is only a couple of knots different from the true airspeed.
Sludge:
JR...
I think A J has a point. Look at this calculator, plug in 5000 ft, 29.92 altimeter, 60 deg F, 475 KIAS. It comes out to 521 KTAS.
http://www.paragonair.com/public/aircraft/calc_TAS.html
Now the question is, can the HUD be adjusted to display the correct indicated a/speed? Is that a function of FSX or Im guessing there's a formula to adapt the HUD?
Later
Sludge
Paddles:
The HUD shows Airspeed indicated variable which is calculated somewhere in FSX, not in FA18_HUD_VC_R.xml
But given a formula, it is possible to change that .xml to show corrected airspeed.
PS. There's also AIRSPEED TRUE CALIBRATE variable (Degrees) - Angle of “True” calibration scale on airspeed indicator. (SDK)
SpazSinbad:
fsxnavypilot, why not contact Dino Cattaneo yourself. In the past I have pointed out errors to him - for example with his initial Goshawk release (it had the AoA indexer working in reverse) and he was happy to fix this and other issues. If you go here you can see that after the release of JSF-A (which will be fantastic) Dino will work on the Goshawk again:
http://indiafoxtecho.blogspot.com/2010/03/what-after-f-35.html
As you can see I have directed him here already but if you contact him by e-mail then it will be better all round?
dino_cattaneo@libero.it
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