RunRyder RC
 1  Topic Subscribe
WATCH
 1 page 602 views
HelicopterBeginners Corner › First Auto
06-05-2004 12:56 PM  13 years agoPost 1
spongebob1871

rrApprentice

Yokota Air Base, Japan

My Posts: All  Forum  Topic

so today was my first day for many things. new setup with an OS 50 vice a TT36. New Rotor Head, Bigger Blades, and most importantly no training gear. after much practice on the sim (Reflex), and about 15 training gear flights, i was ready. so i'm hovering around at about 30 feet, feeling good. bringing it in low, and then back up again. with a few landings added in to get the feel without training gear. what a difference, it flies so much better. so here i am at about thirty feet thinking its about time to land and refuel. when the engine revs up from going lean and shoots up to about 75 feet. then dies. first thought is ****......here goes my heli. then my instructor yells negative pitch. i drop the pitch, and now the heli is slowly approaching the ground. no problem, i have it somewhat under control. now just to time the flair. i started to add pitch at about 15 feet, and then a light pole jumped out and caught the blade tip. it was all over after that. the end result, was a bent tail boom, fly bar, broken set of woodies, broken tail pitch slider, and a couple of rods. first crash, so i'm feeling pretty good. i'm not so scared of autos now, but i feel they are more important than ever. so i will practice more, and move to the other end of the field to get away from the light poles.

heli's are great!!!!!

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-05-2004 04:17 PM  13 years agoPost 2
JoeyDiaz

rrApprentice

Oilton, OK

My Posts: All  Forum  Topic

whay did he mean by negative ? trying to get an understanding of collective

PM  EMAIL  GALLERY  Attn:RR  Quote
06-05-2004 04:24 PM  13 years agoPost 3
cwhover

rrApprentice

El Paso, TX

My Posts: All  Forum  Topic

Joey,

By negative pitch, the instructor meant to lower the throttle/collective pitch control and change the main blades from a positive angle of attack to a negative angle. That way the wind flowing up through the rotor disc as the heli falls keeps the head turning so that there is enough headspeed to land the heli (hopefully).

Carl
VISA field rep

PM  EMAIL  GALLERY  Attn:RR  Quote
06-06-2004 12:15 AM  13 years agoPost 4
JoeyDiaz

rrApprentice

Oilton, OK

My Posts: All  Forum  Topic

oh i see, the - pitch keeps the blades spining pretty good, and then you flare back in+ pitch when the heli gets close to the ground for a nice soft landing hopefully correct?

PM  EMAIL  GALLERY  Attn:RR  Quote
06-07-2004 12:14 AM  13 years agoPost 5
cwhover

rrApprentice

El Paso, TX

My Posts: All  Forum  Topic

Joey,

Thats right. I just did my first two autos today. Not as hard as I expected, but it was hard to make myself hit the hold switch and fly to the ground. Both went without a hitch. Can't wait to try some more.

Carl
VISA field rep

PM  EMAIL  GALLERY  Attn:RR  Quote
06-07-2004 01:07 AM  13 years agoPost 6
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

My Posts: All  Forum  Topic

Joey,

I look at is as being similar to the YoYo effect.

As the heli's rotors lose inertia, you will need to "speed" the disk up, thereby using "negative" pitch to keep the blades going. Depending on the rate of decent, adding positive pitch (slowly) will ease the heli down without alot of force and hopefully landing without any mishaps.

Ray Fernandez - GUAM

PM  EMAIL  GALLERY  Attn:RR  Quote
06-07-2004 02:42 AM  13 years agoPost 7
JoeyDiaz

rrApprentice

Oilton, OK

My Posts: All  Forum  Topic

great thanks for the reply getting a good understanding of the collective now,by the way got my first raptor 30 today

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 602 views
HelicopterBeginners Corner › First Auto
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Thursday, December 14 - 5:16 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online