Guys
I notice recently there have been a number of threads and requests for AHII aircraft performance data such as the corner velocity etc. So I recently tested all 57 prop fighters for their sustained turn radius and rate, their stall speed and corner velocity, as well as the turn rate and radius at corner velocity.
I don't think that range of information has been made available before so I thought it would be of interest to the community. However, I've had second thoughts, and taken another approach. Instead of just releasing the output I’ve spent some time preparing a tool that can be used by anyone so that you can produce your own results.
A problem I've noticed with just publishing data, is that no matter what configuration you use, someone will always be interested in something different. For example, I always test at 25% fuel, sea level and in a clean configuration. I do that for two reasons, firstly because I like to get the best possible performance for the aircraft, and secondly because I don't have to re-test for heavier internal fuel, the tools I use give me additional weight scenarios with ease. The problem is that many pilots prefer to see data for more probable combat situations, more fuel and different weapons etc.
In order to give everyone what they wanted it would be necessary to do a lot more testing... But the simple answer would be to make it possible for everyone to collect the same information, with as little effort as possible. If only you could get the sustained rate and radius, the stall speed, the corner velocity, and the rate and radius at the aircraft’s corner velocity from one simple flight test for each aircraft.
Introducing Badboy's BootStrap approach I've written a small spread sheet (The BootStrap Calculator) that will accept two measurements, the speed and time from a sustained level turn test. From that it provides us with the usual sustained turn information that we are familiar with seeing posted on the boards, (MOSQ and Kweassa spring to mind) but it also provides the stall speed, the corner velocity and the turn rate and turn radius at corner. All that information from just one flight test.
Here it is, with a document that explains how to do the flight testing:
Download Badboy's BootStrap CalculatorYou can do the tests yourself, or use data from other posters, or pool information and share data, and so on. Either way, I think my BootStrap method represents the greatest amount of information, for the least amount of flight testing possible.
If anyone needs any help interpreting the results, just ask.
I hope this will be useful.
Badboy
