Wikiposts
Search
Rotorheads A haven for helicopter professionals to discuss the things that affect them

Pedal-jams

Thread Tools
 
Search this Thread
 
Old 13th Jul 2006, 05:25
  #1 (permalink)  
Thread Starter
 
Join Date: Jun 2002
Location: Motueka - Natuurlik!
Posts: 98
Likes: 0
Received 0 Likes on 0 Posts
Pedal-jams

I am busy with pedal-jam exercises for my comm.-training and can do hover-position pedal jams okay, but am struggling with left-pedal forward jams. I can manage bringing the machine around to the right okay but struggle with the final touchdown-part. I always bounce it and have used up my "nine lives" not rolling it. It feels like I am not progressing at all after doing 5 hours of it!!
Have any of you got any tips or tricks on how to fix it? I am training in a 22.
discobeast is offline  
Old 13th Jul 2006, 11:02
  #2 (permalink)  
 
Join Date: Sep 2002
Location: Great South East, tired and retired
Posts: 4,434
Received 274 Likes on 130 Posts
The secret (if any) is not to lose your airspeed.

Do this by saying out loud "Keep the picture flat! Don't let the nose come up!"

This way you will control the rate of speed bleed-off, because once the nose comes straight you cannot slow down any more. Bouncing is the result of having the nose up and touching down on the heels of the skids. Wheels are easier - why don't you train on an A109?
Ascend Charlie is offline  
Old 13th Jul 2006, 11:49
  #3 (permalink)  
 
Join Date: May 2004
Location: Aus, Europe & everywhere in between
Posts: 391
Likes: 0
Received 0 Likes on 0 Posts
Firstly - why don't you ask your instructor??? If he can't answer you, train somewhere else!

Jammed pedals allow you some time (as long as you keep the airspeed up). Ditto to Ascend Charlie's post but also, as soon as you have ground contact, the friction with the landing surface (once you touchdown) will keep you relatively aligned. SLOW movements from then on!

As your speed decreases, let the aircraft slew around and follow it with the cyclic. Don't try and overcome it 'cause you will roll it over.

Hope it helps.
Oogle is offline  
Old 13th Jul 2006, 11:58
  #4 (permalink)  

Hovering AND talking
 
Join Date: Feb 2003
Location: Propping up bars in the Lands of D H Lawrence and Bishop Bonner
Age: 59
Posts: 5,705
Likes: 0
Received 0 Likes on 0 Posts
Firstly - why don't you ask your instructor???
Different people have different ways of explaining things; an instructor may have three ways of explaining something but if none of those ideas works, then the student will still end up confused.

There are also differences in the way some brains understand and retain information; some like a graphical depiction, some verbal explanation and others like to see it in writing.

Another person's viewpoint and ideas are good to read. In addition, something like this will probably mean I won't have to ask the same question in a few months time!

Cheers

Whirls
Whirlygig is offline  
Old 13th Jul 2006, 20:21
  #5 (permalink)  
 
Join Date: Jun 2003
Location: Kiwiland
Posts: 63
Likes: 0
Received 0 Likes on 0 Posts
Try going back to the basics.Before you go up the next time do some run on's with the instructor to get your run on attitude sorted then try again.

Safe flying and good luck with the CPL
Dis-Mystery of Lift is offline  
Old 13th Jul 2006, 21:10
  #6 (permalink)  
 
Join Date: May 2002
Location: Downeast
Age: 75
Posts: 18,315
Received 585 Likes on 242 Posts
Never flown a Robbie...but in most helicopters....roll the Nr back to the bottom of the green and see how the nose comes back towards center. Make a long flat approach to the threshhold....hold height about a foot....decelerate ever so slowly until the nose aligns with the runway and direction of movement and ease the aircraft upon the surface using collective...sometimes a bit of throttle reduction might be required. One should be able to hover or be very, very, slow at point of touchdown that way.

Left foot forward....good day! Right foot forward....bad day!
SASless is offline  
Old 13th Jul 2006, 21:19
  #7 (permalink)  
 
Join Date: Oct 1999
Location: Den Haag
Age: 57
Posts: 6,372
Received 381 Likes on 219 Posts
Be aware also, that despite the left pedal forward being the best scenario for landing (i.e. minimal speed on touchdown) if you start in that condition at high speed and power, the 'picture' gets a whole lot worse before it gets better! You may find yourself tracking down the runway looking through your side window for a while, but eventually the power demand will rise again and the nose will start to align as you apply collective.

In any failure case, never let the nose go right of track or you may not recover!
212man is offline  
Old 13th Jul 2006, 22:22
  #8 (permalink)  
 
Join Date: Jul 2003
Location: australia
Posts: 174
Likes: 0
Received 0 Likes on 0 Posts
Five hours of jammed pedals, are you kidding, and the left one forward at that.
Don't run it on, stop it and land from the hover. then find another school.
deeper is offline  
Old 14th Jul 2006, 00:59
  #9 (permalink)  
 
Join Date: May 2002
Location: Downeast
Age: 75
Posts: 18,315
Received 585 Likes on 242 Posts
212man....

If the nose goes right of centerline just accelerate till the nose flops over on the other side and start over again. Power pedal forward is not a big deal...just a nice slow deceleration and touch down when aligned.

Mind the termite mounds!
SASless is offline  
Old 17th Jul 2006, 11:18
  #10 (permalink)  
Thread Starter
 
Join Date: Jun 2002
Location: Motueka - Natuurlik!
Posts: 98
Likes: 0
Received 0 Likes on 0 Posts
Cheers everyone who replied with ideas etc. The pedal-jams are going a lot better.
discobeast is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.