@gkikas-lgpz
Have you had a chance to look at my last two questions?
Really appreciate your help!
Dave
Posts made by dvdsnyd
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RE: High Power Rocket landing Application Help
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RE: High Power Rocket landing Application Help
@Gkikas-LGPZ
Maybe a silly question, but Is it possible to get wind data above 45000 ft?
I've been unable to find it. -
RE: High Power Rocket landing Application Help
Thanks again for this explanation!
With this information, I think I've pretty much got my simulator working - need to give it a real world comparison.However, for the plains of the midwest, it will work, but if we go out west, to say Colorado, The Norther Colorado Tripoli site has gps coordinates:
40.885835,-104.638787This site is about 5500 ft in elevation starting out.
So, please correct me if I'm wrong -
The surface wind is the model altitude , computed at 5522 ft
The value at 330 ft, is actually computed at about 5800 ft
The next couple of values corresponding to 2000, 25000,3000,5000 are not valid, because those isobars intersect with the land, correct?
Thanks,
Dave -
RE: High Power Rocket landing Application Help
@gkikas-lgpz
Hi!
Thanks so much for your help and explanation! Your first post really helped my understanding of what's going on within Windy and the forecasts.I would love to be able to use the Stratos or another high altitude balloon simulator.
Unfortunately, I oversimplified the flight of a high power rocket.
For most high powered flights, we use two parachutes. One is deployed at apogee, and the other is deployed at a pre-determined lower altitude. The apogee chute, or drogue chute is small and facilitates a quick descent. The main parachute, or secondary chute facilitates a soft, safe landing. All the high altitude balloon software only allows for one parachute, which doesn't work for my scenario. -
High Power Rocket landing Application Help
Hi,
My name is Dave, I build and fly large rockets which sometimes go several miles high. We recover the rockets by parachute. I am trying to develop a spreadsheet that utilizes Windy's multi-level wind data to predict the landing point of a rocket launch. The rocket is assumed to go straight up to its estimated altitude(AGL), deploy a parachute and drift down. The idea is to help decide if the launch should proceed based on where the rocket may land due to the forecasted winds - possibly in water or trees or other areas that are hazardous for whatever reason.
This is very similar to the high altitude balloon landing point problem.We generally deal with elevation readings above ground level.
I fly in a sod farm North Branch, MN, where the elevation is about 830 ft. See the pic below.If I fly a rocket to 5000 ft AGL, this is about 5830 ft AMSL.
I will utilize the wind data between 6400ft and 5000ft to start my prediction and work back down.I read in another post, that the vertical elevations are AMSL, however, more specifically isobars.
I'm struggling to understand this concept, specifically, when the isobars take place.
If the launch site is located at 830ft above sea level. What do the winds at the surface, 330 ft, and 2000 ft+ mean?
Thanks,
Dave
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