Smack101 Chapter #5 - The Basics of RC Helicopter Autorotations
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- Bobby introduces autorotations! He explains how to setup throttle hold, how to get comfortable with autos, and how to shoot your first auto approach based on the basic foundations shown on the Autorotations Episode.
great video man. no bulshitting , no comercial, pure technics. good luck, very pleased
by the way, informative basics on how a real helicopter auto-rotates, thanks.
Bigger helis are easier to auto. I miss flying my helis. These free vids have been very informative.
Might be a nice thing to also talk about how to "instal / replace the sprag clutch / one-way bearing" correctly so that the anti-torque rotor will be positively driven by the main rotor when doing autorotations.
Nice video. Great way to get comfortable doing autos.
Many thanks to Bobby and Bert for making this video - liked and subscribed :-)
Your videos are awesome
thanks i feel like i have this
Cool vid. It seems way easier when you do it. 😁
Flameout landing demonstration His pitch setting is +-10 degrees, with 0 degrees in the middle? Is the main rotor made of fiberglass?
Not trying to be a smartass but...what is the allure for 2 stroke gas helicopters.? Am I missing something?
Do you explain mechanical part for autorotations ?
How much negative pitch from start of autorotation sequence( the portion when on the 45 degree descending slope )
Depends on the size of the helicopter, blades, etc., it is a "feel" thing. Generally can be as little as 1-2 degrees and as much as 4-5 degrees. After a lot of practice you can tell when the blades are maintaining speed or slowing down, a quick reaction to add more negative usually speeds them back up provided you have altitude and a large enough helicopter. Auto rotations are always recommended on larger helis to start, at least 600 or larger.
All this time I had my throttle hold set to 0% throttle, I just use it to turn my motor on/off before/after a light. I didn't realize people practice autorotations under ~16% conditions.
So if your TH is set to 16%, how do you connect the battery? Won't the blades start spinning immediately?
Note: 16% is for the nitro engine with a clutch. It's when the nitro engine is in idle and disconnected from the drive train. On an electric motor you always set throttle hold to motor cut off (0% or - 100% depending on transmitter).
Yes, the gassers kinda cheat when they practice auto's. They never go to full engine stop, so they get kinda "comfortable" with what they "think" is doing an auto. However, they're screwed when they actually lose power. However, electric motor guys always go to full cut for autos. First, we practice at a low altitude drop and work our way up. However, that doesn't mean we can't "cheat" a little and leave some % of throttle like 30% programmed in the throttle hold switch. In fact, just by diving and flaring you can stop and hover in the air without adding positive collective. So have fun and practice. Just make sure you work your way to 0% to "truly" master auto-rotation. Then when you really have a failure(motor bearing, broken belt, battery or esc power loss) you are ready.
There's two ways to auto: like the real helicopter(airplane dive & flare) or just straight down(lots of negative pitch and pitch up to land). Very simple in principle and if you are like any good rc heli pilot you will hit the simulator. I would always end my flight with an auto to show off. One tip: dive first/get speed, then click throttle hold and also add some rudder during the flare so you turn/land sideways. (save your tail blade & crown gears from tall grass or ground). In a real emergency, don't get fancy just go straight down with negative unless you are over water or something. Just like Bobby Watts says.