RunRyder RC
 2 pages [ <<    <     1     ( 2 )    >    >> ] 3122 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Autorotation- what is most efficient negative pitch angle?
03-12-2012 02:32 AM  6 years agoPost 21

rrKey Veteran

Round Rock, Texas

My Posts: All  Forum  Topic


You are correct sir!! I guess I went off on a rabbit trail

In the case of a beginner, -4 to -5 is good to start until they are comfortable with not slamming the collective. After that, I recommend running linear IF they plan on doing any acrobatic autos. If the beginner only wishes to do upright "regular" autos, then the original -4 to -5 will work great!!

Darn it. Now I want to go shoot some autos!! LOL!!

Team me

03-12-2012 11:05 PM  6 years agoPost 22
John Krebs


Pittsburgh, PA

My Posts: All  Forum  Topic

Most guys I see doing autos for the first time seem to hang out up there too long rather than come down too quick. Yesterday it was rather windy and on one of my autos I caught a good gust of wind and needed a good bit of negative to get the decent rate that I wanted. That made me think of this thread and what it would have been like if I didn't have full pitch range available. But if a guy is a stick chopper the limit wood be good.


03-12-2012 11:15 PM  6 years agoPost 23


Enterprise, AL

My Posts: All  Forum  Topic

you can always add forward cyclic to get the decent rate down with a trade of altitude for airspeed.

Morgan Fuel / JetCat / KingTech Turbines

PM  EMAIL  Attn:RR  Quote
03-13-2012 11:40 AM  6 years agoPost 24
Thomas L Erb

rrKey Veteran

Alliance ohio

My Posts: All  Forum  Topic

For the newbie at autos I do a hybrid of what has been suggested here. I do agree that keeping all conditions the same is a good idea for consistent flying so I recomend that normal and TH pitch be set starting with -5 . This will allow the pilot to practice 90% of the auto using his normal condition allowing him or her to set the neg pitch to suit . After getting the feel for the auto using normal most of the apprehension as to what will happen when "that " switch is pulled will be gone and they can concentrate on the last part of the maneuver . This as well as doing hovering auto from 3' will give the pilot a good idea of hang time as well.

03-13-2012 02:14 PM  6 years agoPost 25

rrElite Veteran

Rockford, Illinois

My Posts: All  Forum  Topic

Me too. I just give whatever negative pitch I need for the conditions and rate that I want to drop

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

03-14-2012 02:24 AM  6 years agoPost 26


Dike, IA U.S.A.

My Posts: All  Forum  Topic

What is the most efficient negative pitch angle? This is more like the max that I have found to keep enough headspeed to flare and land safely. Of course, you can add more negative pitch to drop it like a rock!
With my 450 I needed to keep around -6 to keep the head speed up, if not more. This way when I was about to land, timing is the key, add pitch to slow the decent and land.
The 600 size heli is comfortable at around -2, maybe a little less.
The 700 can be flown with about 0 pitch.


" Our Liberties We Prize, and Our Rights We Will Maintain"

 2 pages [ <<    <     1     ( 2 )    >    >> ] 3122 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Autorotation- what is most efficient negative pitch angle?
 Print TOPIC  Make Suggestion 

 10  Topic Subscribe

Tuesday, November 13 - 12:50 am - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online