HobbyKing.com New Products Flash Sale
RTF Thumper's blog
Posted by RTF Thumper | Jul 02, 2011 @ 08:23 PM | 1,808 Views
Best Practice yet Session 2 (9 min 17 sec)


Aside from some battery management issues and over exuberance to get in the air. Today was awesome, thumbs felt smart, was mentaly out in front of the aircraft. A few more days like this and I'm for sure going to get in the game with a fourth channel and a bit more speed.
Posted by RTF Thumper | Jul 01, 2011 @ 06:54 AM | 1,765 Views
Again from noflyzone check his blog out lots.......tons of useful information.
Posted by RTF Thumper | Jul 01, 2011 @ 06:51 AM | 1,696 Views
How far down should I take my Li-Po?
Discussion / Posted by NoFlyZone / Apr 27, 2008 @ 12:32 AM / 13,875 Views / 22 Comments ( 1 2 ) / Reply
I'm certainly no expert on Li-Po batteries, don't profess to be, and don't really care to be...

With that said, however, I do try to keep up with the latest information on the care and feeding of Li-Po batteries, and how far down they should be taken without doing them damage and/or shortening their lives.

It seems there are two measured voltages we should be concerned with. The 'working' voltage, or the voltage that our battery is at when it's supplying voltage to our motor, and the more accurate 'resting' voltage. The resting voltage is what we measure after our Li-Po's have had a chance to cool down and stabilize after being subjected to the stresses of powering our motors.

It also seems that we will maximize our Li-Po life by taking them down to no lower than 20% of their capacity. Here is the latest and greatest information I have managed to gather from extensive reading on this subject.

"Resting" Voltage per cell

4.20v = 100% of our battery's amp capacity remains.

4.03v = 76% of our battery's amp capacity remains.

3.86v = 52% of our battery's amp capacity remains. (A good voltage to store our Li-Pos at)

3.83v = 42% of our battery's amp capacity remains.

3.79v = 30% of our battery's capacity remains.

3.75v = 20% of our battery's amp capacity remains. (Where we want to take our Li-Pos to for long life)

3.70v = 11% of our battery's amp capacity remains. (Detrimental 'battery voltage dump' begins)

3.6?v = 0%

In line with the above, we do NOT want our Li-Po's resting voltage to be less than 3.75v per cell, which would mean we had used about 80% of their capacity.

Oddly enough, this 20% figure is exactly the percentage I have always used, even without knowing the above data. This might explain why I seem to have phenomenal life out of my Li-Pos!
Posted by RTF Thumper | Jun 30, 2011 @ 10:44 PM | 2,208 Views
this inexpensive digital timer from wallmart is working out real well
Posted by RTF Thumper | Jun 29, 2011 @ 10:24 PM | 2,424 Views
Steming Dents and Dings (0 min 49 sec)


Just a little demo stay back warm it up then move slow in the vid I rushed and you can get a diffrent texture going.
hope it helps just go slow
Posted by RTF Thumper | Jun 27, 2011 @ 06:53 AM | 2,235 Views
Posted by RTF Thumper | Jun 25, 2011 @ 01:20 PM | 1,993 Views
Champ looking good after 40 flights (Aprox)
Posted by RTF Thumper | Jun 25, 2011 @ 11:42 AM | 2,034 Views
RTF Champ ROG In The WIND First Time Ever.wmv (1 min 34 sec)

This 3 to 6 mph wind was more than I wanted today. I found victory early and yield to conditions beyond my skill. Looking for calm tonight I hope. Man I love this plane
Posted by RTF Thumper | Jun 24, 2011 @ 10:15 PM | 2,202 Views
Firebird Commander II The movie.wmv (1 min 58 sec)

Not a good plane for the beginer in my opinion and I'm new.
Posted by RTF Thumper | Jun 24, 2011 @ 07:27 PM | 2,193 Views
Firebird Commander (2 min 4 sec)

Posted by RTF Thumper | Jun 24, 2011 @ 07:06 PM | 2,203 Views
RTF Champ Day One (2 min 50 sec)
[/QUOTE]
Posted by RTF Thumper | Jun 24, 2011 @ 06:22 PM | 2,115 Views
Hope I can shoot some serious landing practice this evening or maybe in the AM wind wind go away its friggin summer
Posted by RTF Thumper | Jun 22, 2011 @ 11:44 AM | 2,275 Views
This plane is AMAZING after ten minutes of flying rectangles left and right (not all were perfect) did two loops and total of 20 landings with no gear and even got the flair down about inches AGL. All landings were with in 5 feet of me and only aborted three (Lil gust of wind) No Crashes and went through two batteries. First battery probably is damaged. I noticed a slight loss of climb and tried one more loop. then the plane went to soft cut off at three volts. so battery two goes in and I set my timer on my I phone went 10 minutes of more precision flying and parked it. my guess a total of 35 flights and a fantastic experience
Posted by RTF Thumper | Jun 22, 2011 @ 11:43 AM | 2,182 Views
Blog issues
Posted by RTF Thumper | Jun 21, 2011 @ 11:57 AM | 2,206 Views
its not here yet but should be here today. will update later.
Posted by RTF Thumper | Jun 19, 2011 @ 10:23 AM | 2,272 Views
After A lucky save yesterday, I put a drop of CA (super glue) under each side of the tape that wouldn't stick on the elverons reinforced with some Nylon filled strapping tape and tada Shes ready for round 6. I also use a rubber band to stop the battery from ejecting on those Anti Crash Technology induced cartwheels and death spirals Man is this an awsome Plane. It comes as an RTF but by the time you master it you have re-built it from scratch its kinda like a on the job learn to build wile you fly.
Posted by RTF Thumper | Jun 18, 2011 @ 03:37 PM | 2,104 Views
Got my Beat up FC 2 up for aprox 11 min sevral laps and two eights the a nice approach and landing within ten feet. Then a quick check all looked good and launch for the second time. Hold on near disaster No right stick to speak of and all left from past issues with this tempermental aircraft i hold full throttel to get some hieght, then hold full right with the trim as well cut the power and hope for the best. six circules later I got her down with a nice belly in on the parking lot (ACT OFF at all times) no new dammage