Caldera Posted June 27, 2022 Posted June 27, 2022 (edited) Hey all, I do not know if this is glitch or not. Flying over the Black Sea west of Batumi I notice that the VSI kind of goes wacky. For example for the radar altimeter to indicate level flight the VSI must indicate about 300-400 fpm descent. Anyone else care to check this out for me? Caldera Edited June 27, 2022 by Caldera
Scaley Posted June 27, 2022 Posted June 27, 2022 We might need some more details about the circumstances, location, etc. Is this a reproducible thing or has it just happened once? 476th vFighter Group Main Page -- YouTube -- Discord Scaley AV YouTube - More videos from the 476th
Caldera Posted June 27, 2022 Author Posted June 27, 2022 Scaley, Thanks for the interest! I have built a training mission centered around Batumi, that is difficult and I have flown it many times. So yes, it has happened many times, but I just did not have the confidence to recognize it for a glitch or possible glitch until recently. I kept gaining allot of altitude for an unknown reason until I recognized what was occurring. I also noticed today that it is not entirely just over the water. There seems to be a margin along the coast line that I notice it occurs as well. For example, take off from Batumi and fly south to the river. Follow the river west out to the Black Sea and fly north along the coast or out into the sea. If you hold the VSI at zero you will gain altitude. To fly level the VSI will indicate a descent. Caldera
ED Team Raptor9 Posted June 27, 2022 ED Team Posted June 27, 2022 Under very calm sea states, radar altimeters can sometimes indicate the altitude from a shallow ocean floor, a river bed, or a lake bottom; instead of altitude above the water. However I don't know if this effect is modelled in DCS, if that is what you are seeing, and even if it is intended or not. I'll have to test this out today when I get home to see if I can reproduce. 1 Afterburners are for wussies...hang around the battlefield and dodge tracers like a man. DCS Rotor-Head
Scaley Posted June 29, 2022 Posted June 29, 2022 On 6/27/2022 at 6:17 PM, Caldera said: Scaley, Thanks for the interest! I have built a training mission centered around Batumi, that is difficult and I have flown it many times. So yes, it has happened many times, but I just did not have the confidence to recognize it for a glitch or possible glitch until recently. I kept gaining allot of altitude for an unknown reason until I recognized what was occurring. I also noticed today that it is not entirely just over the water. There seems to be a margin along the coast line that I notice it occurs as well. For example, take off from Batumi and fly south to the river. Follow the river west out to the Black Sea and fly north along the coast or out into the sea. If you hold the VSI at zero you will gain altitude. To fly level the VSI will indicate a descent. Caldera Any chance you could post a track, or screen recording? That sounds very odd. I'm 99.99% sure DCS doesn't model any shallow water rad alt effects, especially given that it's game engine coordinate system has a zero-plane at sea level which has always previously been a very hard floor to the sim engine (hence no below sea level terrain in NTTR and Syria even in area where this is the real elevation). 476th vFighter Group Main Page -- YouTube -- Discord Scaley AV YouTube - More videos from the 476th
Caldera Posted July 1, 2022 Author Posted July 1, 2022 Scaley, Well hmm... I can understand why you are not seeing what I have seen. I took off straight from Batumi and headed west, just as I described above, and all seemed fine. However, running my training mission, which I have done many times, I do notice that it occurs. This mission forces me to land and rearm / refuel several times from a FARP located on the river east of the island that is just south of Batumi. Actually, the FARP is located in the river for the purpose of making spot landings more difficult for training. And... I have already noticed some goofiness in that process. In this mission I don't typically make it over to the coastal area until I have rearmed / refueled the 2nd time (16 Hellfires each time). All seems fine up that point until I fly near the coast or out over the Black See. I must do this to uncover some targets. When I fly back inland it seems to correct itself. At this point in the mission track file would be 30+ MB. I am not so sure this is a glitch or just some Caldera goofiness. I am attaching my SP mission file. It is really set-up to not use George AI as the gunner, but to let pilot George hover while the player is the gunner. The mission is designed to be pretty hard to learn and to be difficult. If you want to fly it be careful. There are no units actually hidden, but be sure to maneuver to a position with a view point where they can be spotted. I hope you enjoy the mission and thanks for your interest. Caldera 001 AH-64 CAUCASUS BUILD.miz
Caldera Posted July 3, 2022 Author Posted July 3, 2022 (edited) Maybe... This screen shot shows what may have been confusing me. It was taken in the same general area as before. I have no idea why the radar altimeter quit. The VSI seemed to be working just fine. How is the VSI indication derived, from radar or barometric altitude? Caldera Edited July 3, 2022 by Caldera
Scaley Posted July 6, 2022 Posted July 6, 2022 On 7/3/2022 at 5:56 PM, Caldera said: Maybe... This screen shot shows what may have been confusing me. It was taken in the same general area as before. I have no idea why the radar altimeter quit. The VSI seemed to be working just fine. How is the VSI indication derived, from radar or barometric altitude? Caldera The VSI is driven by the Inertia Nav system, so neither the rad alt nor baro alt are involved. Looks like your rad alt has failed (assuming that 830 was not changing at all). Either random failure or battle damage? 476th vFighter Group Main Page -- YouTube -- Discord Scaley AV YouTube - More videos from the 476th
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