A collection of note-to-self's
I briefly mentioned that the iMax B6 Quattro charger has a computer interface. I already was disappointed that the interface is per charger and only half of the chargers has it. Another disappointment came when I tried the software.
Continue reading ‘iMax B6 charger protocol reverse engineered’ »
I bought a new “multi-charger”, the iMax Quattro B6. Here is my review.
I’m selling my Thunder Tiger Raptor 50 Titan:
This is a great helicopter for beginners. Its setup is very gentle and it can take some gusty winds. The governor allows you to concentrate on flying before having to fine-tune the engine. It’s also fast to refuel (in contrast with recharging a LiPo battery).
I’m selling it because my new club does not allow nitro.
I’m selling, preferably as a whole:
In summary: everything you need to fly expect the transmitter, the receiver & a battery charger
I prefer you come and pick it up near Brussels, Belgium; that way I can show you it still flies.
If you are interested, feel free to propose a price.
After way to long, I finally found some time/weather combination to fly again. I’m a little embarrassed it took so long…
Of course, all my batteries were fairly dead. The glow heater was completely gone (0V), but was still usable after charging. My starter-battery was dead beyond repair. The LiPo’s of the miniTitan were is fairly good shape after more than a year in the fridge: 3/4th charged.
Before the flights, I upgrade my CastleLink software to version 3.40.0, and upgraded the ESC firmware to 3.27 along with these (PDF) new settings.
Continue reading ‘Flight log 2011-10-15’ »
The graphs of the ESC logging data I made earlier aren’t as pretty as HTML5 allows… So I retried it using HighCharts and a bit of JavaScript. The result is a standalone LogViewer page which interprets and graphs the log data entirely client-side. The page itself is fairly boring until you feed in a log file.
Clearly I’m not a layout specialist, but the functionality is there.
Place: Home
Batteries flown: 0.2
Time flown: 0h07 (cumulative model timer: 4h40)
Flight battery recharged with: (2) <not recharged>
Tx battery recharged with: <not recharged>
Comments:
Got my miniTitan repaired; at around €20 it was fairly cheap. But the governor-config still needed to be done. So I gave the collective a punch while in a hoover and noticed a drop in RPM, as it was last time. I changed the settings to have a governor gain at “Medium (25)” instead of “Low (15)”.
Place: Home
Batteries flown: 0.2
Time flown: 0h03 (cumulative model timer: 4h33)
Flight battery recharged with: (2) 2398 mAh (after full discharge)
Tx battery recharged with: <not recharged>
Comments:
My miniTitan was repaired and had a new ESC. Time for the first test flight. After a minute of hoovering, I shortly pushed full collective to check the governor. The headspeed dropped, not surprisingly since the governor is set to it’s lowest setting. So I pushed full collective again, to see if the governor is able to compensate.
Again the rotor headspeed dropped. The governor did compensate, but only the motor rpm increased, not the rotor’s… And then the ground intervened. I squeezed the remaining rpm’s out of the rotor to soften the crash, but it did hit fairly hard.
As mentioned, my new ESC also has data-logging capabilities. The provided software actually has a fairly descend viewer, but it lacks some features.
A friend of mine has the exact same behaviour on his miniTitan. Although my crash may have caused some damage, his heli started this behaviour after a regular flight. I guess this is an additional indication against the ESC. So I bought a new ESC.
I never had a course in aerodynamics. If I had, I might have programmed a power-calculator myself, but I doubt that it would have been as complete and easy-to-use as this calculator.
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