SmartLaunch is a rocket launch simulation app that gives on-the-spot information about the initial moments of a planned launch. Specifically, given a few details about the rocket and the motor, it will give the speed at which the rocket will leave the launch guide, the angle of attack of the rocket with any crosswind, as well as the thrust-weight ratio based on the initial thrust of the motor (not the average thrust). Using this information, the rocketeer can judge whether a specified motor may result in a stable flight under the given conditions.
The app also gives the expected apogee altitude and coast time for the proposed flight.
Version 1 features:
User specified units (metric, standard)
Set launch angle by tilting the device, either up against launch guide or by camera view
Set launch site altitude by GPS (if available and Location Services allowed)
Database of over 800 commercial rocket motor thrust curves
Remembers multiple rockets and easily switches back and forth
User can decide which motors they want to see in the list - by diameter, impulse class or manufacturer
Releasing new versions every 3 months, on average.
Fixed a little interface glitch.
New "RSO Mode" for Range Safety Officers!
Let me know if you want this new RSO mode for the iPad. I expect more people to have their iPhone at the RSO table rather than their iPad, but I will listen to requests. Getting it to work on iPad will take a bit more effort since the interface is fundamentally different.
Fixed a crasher in the statistics function. My sincere apologies for not testing it better!
Added launch statistics. How many launches, how many unique rockets, how many total Newton-seconds?
Bug fix in the motor list updating function.
You asked for it. You got it.
Fixed the issue with the GPS altitude not functioning. Function now tested on iOS 7 and 8.
Email me if you have suggestions for new features.
All of the single stage kit information from PML, and a better interface for choosing kits (less scrolling).
Minor update for iOS 8 compatibility.
Added over 470 Estes rocket kits!
Minor bug fixes and enhancements. New motors added.
Major improvement in the speed of the simulation.
Added kit data from Madcow and Wildman!
Look for another update soon, adding a way for you to choose the image representing your rocket on screen!
Updated to support features in iOS 7
Bug fix for saving the rocket and Cd from the editing screens, and protection against some crashes.
Check the website for tutorial information.
Please contact me if you are experiencing problems.
Clusters and Air-Starts!
Version 2.0 adds the ability to have more than one motor mount in the simulated rocket. Motors can be added in balanced sets, and not all motor mounts must be used. Each set of motors can be given a different start time.
On the iPad the thrust curve of the combined set of motors is updated on the screen as you make changes. The flight profile is similarly updated in real time.
Cluster information is stored with saved flights, and shared across devices with your iCloud account. Any cluster previously used in a saved flight can be reloaded all at once, and can be subsequently edited.
Fixed the bug in the GPS altitude - should be working again.
A few new motors come with the update. Tap on "Check for New Motors" once in a while (while in network). This will download any changes to the motor list between app updates.
SmartLaunch HD (formerly LaunchSmart) now supports iPad!
*** If you had installed the iPhone version on your iPad, please delete the old version before installation, to be certain that iPad-specific resources are recognized.
This is still a work in progress. Visit my web page and send me suggestions.
Added a new flight profile graph - Drag.
Go to the website and email me your feedback.
Version 1.3 adds several requested features:
- Your list of rockets is now shared across your iOS devices via iCloud
These graphs are quite interesting, especially the acceleration. Some quite unusual shapes are generated because of the effects of thrust curve shape, changing air density with altitude, and changing Cd with Mach number in the transsonic region.
Go to www.mySmartSoftware.com to read about the development process for this app, and feel free to email me feature requests.
Native iPad support is high on my list.
New vector view for the launch angle, wind and angle of attack. Continuous animated updates when you change launch parameters.
Fixed crash when leaving Launch Angle Finder without turn "Motion OFF"
Click to see more