Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

Turbine with V tail - AMA approved?

Old 08-26-2019, 10:02 AM
  #1  
ltc
Thread Starter
My Feedback: (3)
 
Join Date: Mar 2010
Location: Mendon, MA
Posts: 1,204
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Turbine with V tail - AMA approved?

I know that AMA requires rudders on all approved fixed wing turbines (turbojet and turboprop)

Does that exclude a V tail configuration from being AMA turbine waiver legal?

Does the AMA define a rudder as a completely separate physical surface or just a rudder function?
For example would a V tail airplane (ailevator) with separate wing flaps and ailerons be acceptable to AMA?

My guess is No since the servo on each side of the tail would be considered elevator function and not rudder
ltc is offline  
Old 08-26-2019, 11:14 AM
  #2  
ira d
 
Join Date: May 2003
Location: Maricopa County AZ
Posts: 3,152
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I would think since the V tail is cable of performing rudder functions it would be ok.
ira d is online now  
Old 08-26-2019, 11:19 AM
  #3  
CraigG
My Feedback: (40)
 
CraigG's Avatar
 
Join Date: Jan 2002
Location: Sautee Nacoochee, GA
Posts: 1,988
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

V tails function very effectively for yaw/rudder control. Perfectly legal as there are a number of Fouga Magisters that have been flying at jet events for several years.
CraigG is offline  
Old 08-26-2019, 11:53 AM
  #4  
BarracudaHockey
My Feedback: (11)
 
BarracudaHockey's Avatar
 
Join Date: Jul 2003
Location: Jacksonville, FL
Posts: 23,598
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Yep, not a problem
BarracudaHockey is offline  
Old 08-26-2019, 03:20 PM
  #5  
ltc
Thread Starter
My Feedback: (3)
 
Join Date: Mar 2010
Location: Mendon, MA
Posts: 1,204
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Thank you everyone.
It looks like I might have a winter project ...
ltc is offline  
Old 08-26-2019, 05:53 PM
  #6  
gunradd
My Feedback: (9)
 
gunradd's Avatar
 
Join Date: Aug 2008
Location: Springhill, FL
Posts: 3,155
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default



Split rudders where not a problem even with no tail.
gunradd is offline  
Old 08-27-2019, 06:40 AM
  #7  
rhklenke
My Feedback: (24)
 
rhklenke's Avatar
 
Join Date: Jun 2002
Location: Richmond, VA
Posts: 5,808
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

As Kris showed with the B-2 above, the intent of the rule is that the aircraft must have yaw control - primarily to line up with the runway and maintain runway heading. As Craig said, V-tails with rudder functionality are fine.

Bob
rhklenke is offline  
Old 08-27-2019, 08:56 AM
  #8  
Doug Cronkhite
My Feedback: (34)
 
Join Date: Dec 2001
Location: San Diego, CA
Posts: 3,787
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by ltc View Post
I know that AMA requires rudders on all approved fixed wing turbines (turbojet and turboprop)

Does that exclude a V tail configuration from being AMA turbine waiver legal?

Does the AMA define a rudder as a completely separate physical surface or just a rudder function?
For example would a V tail airplane (ailevator) with separate wing flaps and ailerons be acceptable to AMA?

My guess is No since the servo on each side of the tail would be considered elevator function and not rudder
V-tails are fine. Lots of V-tail subjects out there.
Doug Cronkhite 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


Thread Tools
Search this Thread

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

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.