A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Grob Twin Astir getting "stuck" in a slip

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old September 28th 20, 01:35 PM posted to rec.aviation.soaring
Kenn Sebesta
external usenet poster
Posts: 32
Default Grob Twin Astir getting "stuck" in a slip

I was flying my club's Twin Astir and noticed that if I put it into the deepest slip I can, by first pushing the rudder all the way to the floor and then compensating for yaw by using opposite bank, the plane doesn't come out of the slip very willingly. I have to actually put opposite rudder to get the desired timeliness of response.

On anything powered I've ever flown, as well as for my one flight in a 2-33, the planes snap out of the slip on their own. By removing rudder pressure, the plane reduces slip accordingly. I've certainly never had to *push* on the opposite rudder to resume normal flight.

Of course, those planes have super boxy and wide fuselages, whereas the Grob has a much finer shape. The Grob also has a smallish rudder and vertical stabilizer compared to, say, a Cessna.

Lastly, the Grob has a T-tail, which could lead to some weird airflow issues, but typically I associate T-tails with attitude control issues, not yaw.

Anyone seen this kind of behavior? If so, is this normal for all fine fuselages, or is this unique to the Twin Astir?

P.S. This doesn't happen in shallow slips, there seems to be a knee in the flight behavior.

Thread Tools
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 1979 Grob Twin Astir [email protected] Soaring 1 March 9th 17 09:58 PM
Grob Twin Astir K m Soaring 42 October 11th 16 07:54 PM
For sale: Grob Twin Astir [email protected] Soaring 3 April 8th 14 05:29 PM
Tailwheel For GROB Twin Astir Mike J. Soaring 2 December 3rd 12 05:49 PM
Grob Twin Astir Tailshaking Peter Soaring 11 January 15th 07 12:54 AM

All times are GMT +1. The time now is 02:36 PM.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright ©2004-2020 AviationBanter.
The comments are property of their posters.