From launch to landing - the new SpaceCAD 4 has got you covered!
 SpaceCAD
4 gives you more control over the complete flight. Now you
can give your rocket one or two parachutes that are ejected
based on time or altitude. You can also find out how
far your rocket will drift based on local wind conditions!
Also, you can model your local atmospheric conditions
to get even better results - just enter the humidity and temperature
for an exact flight prediction.
Additionally, find out the real cd value of
your model rocket by comparing the computed altitude with the measured
one.
SpaceCAD is the official software that is used
in the world's largest rocket contest, the Team America Rocketry
Challenge (TARC), and it is the software the winning teams used.
So be a winner too - and use SpaceCAD now to build safe and stable
rockets!
Recovery Prediction - from apogee to landing
The recovery designer allows you to analyze and
fine-tune your rocket's landing.
This allows you to exactly see how long and how far away your rocket
will float and how long it will take until it reaches the ground.
This is especially  helpful
if you need to build your recovery system for an exact floating
time, like in the TARC contest. Also, this feature allows your rocket
to have two recovery systems that work in tandem. It can work on
altitude ejection, time based ejection (after apogee or after launch),
giving high-power rocketeers all the freedom they need to succesfully
recover their rockets.
You can also prepare different recovery systems by
running multiple simulations for different wind speeds. So you are
prepared for all wind situations!
How Do You Use It?
Start SpaceCAD 4 and
- load (or design) a rocket
- go to the calculations menu
- click on "recovery designer"
Now you can play around with the different values
to find out how they affect your rocket's flight path.
Launch Site Modeling - more realistic flight predictions
SpaceCAD 4 allows you to enter launch site details
like air pressure, height, humidity to realistically model the air
density.
Entering your local launch data results in
a more accurate flight prediction, because the air density has an
impact on your rocket's flight. Alternatively,  you
can also let SpaceCAD use the "standard atmosphere" that uses a
standardized way for the air density based on your launch site height
(you can read more one that on Wikipedia).
Basically, this allows you to simulate how the rocket
flies at different launch sites - for example, if you're in Florida
you can better prepare for the different conditions in Virginia.
How Do You Use It?
To use this feature, you'll need to know some basic information
about your launch site like atmospheric pressure, temperature and
humidity. Sounds difficult? It's not - you can easily get that information
at weather forecast websites.
Find out the real cd-Value
SpaceCAD allows you to find out the real
cd value by providing means to compare the measured altitude with
the computed one.
Predicting the real cd value is difficult. Even complex algorithms
that some software provides often does not reflect the "real" cd
value of a model rocket. But, with today's means, it's easy to do
it the other way round: equip your model rocket with an altimeter
to measure the "real" altitude. Enter that data in SpaceCAD, and
it will compute the real cd value from that. A very exact way to
find out the real cd value!
How Do You Use It?
Start SpaceCAD 4 and
- load (or design) a rocket
- go to the calculations menu
- click on "cd value derivation"
- enter the real (measured) altitude
- click on "next"
SpaceCAD now derives the real cd value from the height
you have entered. It is important that you have loaded your rocket
before, and that is has the same configuration as the model that
you measured the height with.
Additional Features
Additionally, I have added some smaller features
- like, for example, exporting the flight prediction data.
Save the predicted data to a file and compare it with the measured
data from the altimeter.
How Do You Use It?
Start SpaceCAD 4 and
- load (or design) a rocket
- run a flight prediction
- on the flight prediction graph, right-click
with your mouse
- select "Export to file"
- enter the name of a textfile where the data
will be saved
That's it - now you can load that data for example
in Excel® or any other application and play around with it.
Also, the database import has been improved.
Now you can import parts databases that have been created for Rocksim
in SpaceCAD 4 - just copy the files in the newdb\ directory of SpaceCAD,
and run the import tool. It's as easy as that!
Download and Order link
Download SpaceCAD 4 now from here:
spacecad4.exe
Go to the SpaceCAD
4 online store
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