Justin1Ntime Posted November 1, 2020 Posted November 1, 2020 Hi I am just getting started with the F18 mod. I noticed when I am in Nevada my speed never goes over 710(ish) on the left side of the hud and my altitude is about 2000k to high on the right hand side of the hud. Shouldnt this go faster and the the ground be zeroed out on the Nevada map. Again this is just me messing around in free flight.
Bunny Clark Posted November 2, 2020 Posted November 2, 2020 Top speed will be dependent on your altitude and configuration. Barometric altitude measures from sea level, so what you're seeing is the approximate ground elevation above sea level, which in Nevada is quite high. You can switch between barometric and radar altitude, which will always show you height above the ground (so long as you're below 5,000 feet) with a switch below the UFC. Oil In The Water Hornet Campaign. Bunny's: Form-Fillable Controller Layout PDFs | HOTAS Kneeboards | Checklist Kneeboards
Habu_69 Posted November 2, 2020 Posted November 2, 2020 At higher altitudes mach number provides a better indication of ground speed than does AIS.
Ziptie Posted November 2, 2020 Posted November 2, 2020 Or you can also have the HSI display, which will show you true and ground speed for reference. Cheers, Ziptie i7 6700 @4ghz, 32GB HyperX Fury ddr4-2133 ram, GTX980, Oculus Rift CV1, 2x1TB SSD drives (one solely for DCS OpenBeta standalone) Thrustmaster Warthog HOTAS, Thrustmaster Cougar MFDs Airframes: A10C, A10CII, F/A-18C, F-14B, F-16C, UH=1H, FC3. Modules: Combined Arms, Supercarrier. Terrains: Persian Gulf, Nevada NTTR, Syria
Frederf Posted November 2, 2020 Posted November 2, 2020 The number on the HUD is airspeed which is a measure of how much wind pressure is being shoved into the pitot sensor on the front of the airplane. Thin air at high altitude means that the number is a lot lower than how fast you are actually going. 700 knots indicated airspeed is about as fast as the Hornet can fly. At high altitude it is possible to go through the air faster but even if you are going 1000 knots the number on the HUD will show a smaller number. As strange as it seems there are good reasons the pilot wants to see the number on the HUD even though it isn't the true airspeed and that's why the airplane is designed to show it. It is possible to find out true speed through the air or speed over ground looking in other places in case that info is needed. The altimeter also uses air pressure to tell height and normally it is adjusted so it will read the distance above sea level. Because airports in Nevada are high elevation it is normal for the altimeter to show an altitude of 1 or 2 thousand feet when on the ground. It is up to the pilot to adjust the altimeter properly so the altitude shown is right. The adjustment can be done in different ways to show the airport height when on the ground, zero height when on the ground, or anything else. Pilot training and weather reports are needed to set this adjustment the right way. The Hornet also has another device which measures the distance down to the ground with a radio wave. This has to be turned on and there is a cockpit switch which device is used to put the number on the HUD. Even if the switch is set to use the radio wave measurement device it will show the altimeter number instead if the radio device is turned off or the distance to the ground is too far or the airplane is banked too much. 1
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