[NSRCA-discussion] Flying stab travel

[John Decker]

 Scott, 
Normally, I set elevators at 10 degrees to 12 degrees for maiden. When I had a Nuance with a full flying stab it was so responsive I had it dialed down to 8 degrees by the time I had it trimmed out. And I found the radii could get sharp pretty fast so I had about 20% more expo programmed as well. Definitely more surface area makes a big difference. The nice thing is that once initial incidence is set, you adjust using elevator trim rather than incidence adjusters.
Hope that helps,
John
    On Thursday, September 26, 2019, 11:29:40 AM CDT, Scott McHarg via NSRCA-discussion <nsrca-discussion at lists.nsrca.org> wrote:  
 
 Howdy,
I'm looking for a little advice on a full flying stab.  I'm teaching an Aerospace Senior Capstone Design class at Texas A&M and one of my students' teams is scratch building a plane based on a supersonic business jet in sub-scale utilizing an EDF.  That part isn't really part of the equation but wanted you to understand what they're doing.
The team has figured out the design and mechanical connections which I have approved but we are needing an idea of how much travel the stab needs.  I understand that there are many variables including size of the stab, CG, AC, etc. but I'm looking to give them a place to start.  I was thinking of the Bi-Side and wondering if someone could give me, in degrees, the amount of travel for the stab so that we have a starting point.  I'm sure I'll have fun with the maiden but, hopefully, we will be in the ballpark.
Thanks!Scott
Scott A. McHarg
Takeoff is optional.  Landing is mandatory!_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20190926/38210dfd/attachment.html>