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No... the stall speed of a wing or propeller is higher at higher altitudes. You need more airspeed to create lift at higher altitude. I should know as I used for Hang glide from various mountain peaks in BC, Canada. At 14,000 ASL.... you need a steep downslope and a very fast run to get into the...

There was a posting on this topic within the last few days. It explained how to adjust the vertical gain so that the MR would be able to land more slowly by itself when batteries get too low. Mine comes down a bit fast on 2nd level battery protection. Anyone know where that posting is?:nevreness:

GCS is intended for MR autonomous control with the capability of uploading new waypoint positions from time to time. IMHO - The joystick is useful for simulation mode only...... With real flying, it serves no useful purpose other than to fly in manual mode which is not the main reason why one...

IMHO - Try to determine if your MR GPS system has a GPS system that includes WAAS. Then try to determine where the closest ground based GPS beacon is located. The purpose of these is to help improve GPS accuracy and reliability but there remains finite limits from two perspectives: a)...

But also note that greater prop pitch can also lead to a higher prop stall speed especially at higher altitudes! So with the complete AUW, make sure to confirm your hover speed at the intended altitude is set up correctly so that your MR will still hover.

If you can't find an equivalent motor listed in the left side options, you have to load custom data just to the right. If there is critical info missing on your motors, you might get stuck.... in many cases there are enough options to get close to what the real motor data is.

Slide 4 doesn't look right..... the pointer is too far to the left and you need your manual, attitude and GPS switches to clearly show blue bars above the pointer depending upon which mode is chosen. If you can't get into manual, attitude or GPS mode, you won't be able to get the motors armed.

I have the RCTimer 800 arms..... but haven't used them yet.... just be aware that they are designed in such a way that the S800 landing gear will not connect without significant modifications. In some case the move up to larger props with the 22 pole pan style motors will actually reduce the...

Thanks again Marc..... that is what I was trying to relocate. works like a charm at least for me.

I and most other had similar issues..... the anwers are in this forum if you look hard enough..... There are two possibilities: 1) Check to verify that Google Earth is actually working by itself for you. If it does not then GCS or another program reconfigured your registry and you have to fix...

Kloner.... I assume that would be 3.7 per cell volts measured after the load is disconnected.

Yes....I take Kloner's advice very seriously..... he is very good at this.

I am using the NTM 35-30 1100kv 380 watt motor with the 10 inch 5 pitch Graupner props with great success but don't forget to also purchase the prop adaptors. This modified F550 has a modified 468 landing gear and 2 axis gimbal for my GoPro3. And I power this system with parallel 3S 5000 maH...

Ditto for me as well with the "standard" trainer cable..... but then I reviewed the fine print and the related table in the Futaba 8FG manual and eventually I understood that I had to get the newer, more expensive cable which I did and then it worked. There are a lot of twists and turns in the...

It's the same as a Y connector except there are no interconnecting wires. Problem is you still have to plug the entire assembly into another connector to your MR because the bottom connector is a female connector and the load side has to be male connector every time...... The concept of...

http://www.ehow.com/how_7445569_calculate-prop-tip-speed.html (may not always be the case for MRs) On helicopters the tips will begin to delaminate when hitting the speed of sound due to cavitation and related factors. Calculating tip speed: http://www.pponk.com/HTML%20PAGES/propcalc.html

No.... the purpose of the balance plugs is to sense and regulate the battery recharging, storage and discharge or recycling processes. Once the batteries are installed on the MutlRotor craft, their job is to simply provide the power needed to fly.

IMHO - One thing to keep in mind is that your prop tips must never reach or exceed the sound barrier. And there are also design constraints on the props such that there is a finite safe maximum speed for each prop design which is typically quite a bit below the speed of sound. Unfortunately...

That is very insightful information..... I assume there is still calculus involved. I was aware that there are control systems alternate to the conventional PID loop feedback and feed-forward control and related cascade controller and auto-reset windup etc. But I come from the Greg Shinsky...

Oh Brother Where Art Though! I do not have the same type of RC system as yours so can't help you if there is a radio configuration issue. As far as the MR is concerned here is what I know. My MR will smoothly go between 0 and 100% throttle when it is tied down and configured for manual mode and...