 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Bob Griffin
Joined: 22 Jan 2006
Posts: 34
Location: Slingerlands,NY
|
 Posted: Fri Feb 10, 2006 4:37 am Post subject: vne speed |
 |
|
Good morning, I know the vne speed for the SLSA Allegro here in the US is posted at 137mph as the FAA regulates it to a maximum138mph. What I am wondering is what is the design speed of the aircraft? What are the speeds for this plane in other parts of the world? Is the VNE in Europe or Asia the same? Was the plane actually designed to go faster, safely?
Fly Safe
Bob Griffin
| | - The Matronics Allegro-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Allegro-List |
|
_________________
Fly Safe
Bob Griffin
Slingerlands, NY |
|
| Back to top |
|
 |
Aero Siam
Joined: 30 Jan 2006
Posts: 16
Location: Thailand
|
| Posted: Fri Feb 10, 2006 7:04 am Post subject: Re: vne speed |
|
|
Bob
As quoted by the manufacturer, the Vne of the Allegro 2000 is 220 kilometers per hour which is 136.71 mph or 118.8 knots.
This is the design Vne and there are no variations of this.
One regional variation that does exist is the maximum take off weight. In some European countries, this is limited to 992lb but the design take off weight is 1146lb.
On the subject of V speeds, I asked the factory whether there was a different VFE for first stage flap as is the case for some aircraft particularly given that the Allegro has an unusually large second stage flap deflection (from 15 to 48 degrees). They said that for safety and simplicity, the VFE for both stages is set by the designer at 60 knots but in reality, VFE stage one flap was probably higher.
However, if the design stipulates 60 knots for both stage one and two, let's stick to it.
Regards
Paul
Aero Siam
| | - The Matronics Allegro-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Allegro-List |
|
|
|
| Back to top |
|
|
Thom Riddle
Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)
|
| Posted: Fri Feb 10, 2006 12:57 pm Post subject: Re: vne speed |
|
|
My ASI reads roughly 10% faster than CAS over most of the speed range so I add this to the IAS for Vfe and other V numbers. Speaking of ASI errors, has anyone tried to adjust their ASI to make their IAS read closer to CAS?
On a related subject...
The USA LSA limitaion for Vs (45 knots - w/o flaps) is probably what allowed the MTOW (MAUW) to be raised to 1,232 lb (560 kg) in the USA. The test results in the operator's manual indicates a CAS for stall with 0 flaps to be 43 knots at a weight of 520 kg. thus allowing a higher MTOW and still meet the max. Vs limitation.
Thom in Buffalo
| | - The Matronics Allegro-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Allegro-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
