LazyBoot Posted March 15, 2019 Share Posted March 15, 2019 (edited) Is the radar altimeter supposed to be inaccurate over water? It's showing 100ft too high. ____________________________ This is the same mission over land (7ft over sea level land...) Here you can see they all agree. Both screenshots taken in the built-in PG case 1 mission. Edited April 2, 2019 by IronMike Link to comment Share on other sites More sharing options...
swither Posted March 15, 2019 Share Posted March 15, 2019 Feature :) It's inaccurate over water /Daniel Heatblur Simulations Link to comment Share on other sites More sharing options...
LazyBoot Posted March 15, 2019 Author Share Posted March 15, 2019 Feature :) It's inaccurate over water Ok, that's nice to know, thanks. Link to comment Share on other sites More sharing options...
VampireNZ Posted March 15, 2019 Share Posted March 15, 2019 Interesting...I have 1600 hours flying onboard a maritme aircraft where we used RADALT Hold over water at 250' prob 90% of the time. RADALT is perfectly accurate over water usually. What makes the F-14 special? Asus Maximus VIII Hero Alpha| i7-6700K @ 4.60GHz | nVidia GTX 1080ti Strix OC 11GB @ 2075MHz| 16GB G.Skill Trident Z RGB 3200Mhz DDR4 CL14 | Samsung 950 PRO 512GB M.2 SSD | Corsair Force LE 480GB SSD | Windows 10 64-Bit | TM Warthog with FSSB R3 Lighting Base | VKB Gunfighter Pro + MCG | TM MFD's | Oculus Rift S | Jetseat FSE [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
Flagrum Posted March 17, 2019 Share Posted March 17, 2019 fwiw, this behaviour is documented in NAVAIR 01-F14AAP-1, ch. 2.32.5 Link to comment Share on other sites More sharing options...
swither Posted March 17, 2019 Share Posted March 17, 2019 No idea, 60's design perhaps? But it's according to docs /Daniel Heatblur Simulations Link to comment Share on other sites More sharing options...
Raven (Elysian Angel) Posted March 17, 2019 Share Posted March 17, 2019 If I remember correctly (it's been a while), Stephen Coonts also mentioned in his Jake Grafton books that the radar altimeter is inaccurate over water. Spoiler Ryzen 9 5900X | 64GB G.Skill TridentZ 3600 | Gigabyte RX6900XT | ASUS ROG Strix X570-E GAMING | Samsung 990Pro 2TB + 960Pro 1TB NMVe | HP Reverb G2 Pro Flight Trainer Puma | VIRPIL MT-50CM2+3 base / CM2 x2 grip with 200 mm S-curve extension + CM3 throttle + CP2/3 + FSSB R3L + VPC Rotor TCS Plus base with SharKa-50 grip mounted on Monstertech MFC-1 | TPR rudder pedals OpenXR | PD 1.0 | 100% render resolution | DCS "HIGH" preset Link to comment Share on other sites More sharing options...
Airhunter Posted March 17, 2019 Share Posted March 17, 2019 Why the hell would that be? Link to comment Share on other sites More sharing options...
Flagrum Posted March 17, 2019 Share Posted March 17, 2019 Why the hell would that be? Different reflectivity for radar waves of water and ground? Link to comment Share on other sites More sharing options...
Donut Posted March 18, 2019 Share Posted March 18, 2019 So it sounds like for carrier ops, setting the barometric pressure to the carrier and using the altimeter is the most accurate. i5 7600K @4.8GHz | 1080 Ti | 32GB 3200MHz | SSD | DCS SETTINGS | "COCKPIT" Link to comment Share on other sites More sharing options...
Boagord Posted July 2, 2019 Share Posted July 2, 2019 Radar altimeter can read as much as 100 feet higher than actual altitude when operating over water. NAVAIR 01-F14AAP-1 : 2-173 Link to comment Share on other sites More sharing options...
GumidekCZ Posted November 15, 2021 Share Posted November 15, 2021 (edited) Hi @IronMike, Can I reopen this bug report with one simple question? Why the HB gave us aprox exact over water 100 feet error all the time in every mission, when NAVAIR 01-F14AAP is clear with words: CAN READ and AS MUCH AS. So assume the error could be everywhere between Zero and 100 feet. If this was for example wave height dependant ... than it must be connected with wind speed ( DCS sea wave condition is dependant on it.) Edited November 15, 2021 by GumidekCZ Link to comment Share on other sites More sharing options...
Nealius Posted November 15, 2021 Share Posted November 15, 2021 With radar altimeters being so unreliable over water, why is it standard practice (or so I heard) to set radar altimeters for launches and traps? Link to comment Share on other sites More sharing options...
falcon_120 Posted November 15, 2021 Share Posted November 15, 2021 1 minute ago, Nealius said: With radar altimeters being so unreliable over water, why is it standard practice (or so I heard) to set radar altimeters for launches and traps? I think we are talking specifically about F14 altimeter here right? As far as I know that is not the case on the Hornet. Am i right? If that is the case i guess is a tech limitation of that altimeter in particular... Link to comment Share on other sites More sharing options...
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