VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Main > Safety
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #81  
Old 03-17-2017, 08:25 PM
Vac Vac is offline
 
Join Date: Jul 2009
Location: Niceville, Florida
Posts: 284
Default Weight and Balance Briefing Version 1.1

Minor correction to the weight and balance briefing on the "flying heavy" slide at the end of the briefing. Removed confusing bullet regarding density altitude effects.

Updated version available for download in pdf format here: https://drive.google.com/file/d/0B8E...ew?usp=sharing

Please drop a line or email if you'd like a .pptx (PowerPoint) version of the file.

Fly Safe,

Vac
__________________
Mike Vaccaro
RV-4 2112
Niceville, Florida
Reply With Quote
  #82  
Old 03-20-2017, 09:39 AM
Vac Vac is offline
 
Join Date: Jul 2009
Location: Niceville, Florida
Posts: 284
Default Weight and Balance Version 1.2

Hi Folks!

I've gotten some good feedback over the past week, and have made another revision to the weight and balance briefing. In this version, I added a slide explaining zero fuel weight because in some cases, it's possible to load some RV's so that the CG will remain neutral or shift forward slightly during flight. I added another slide using an RV-8 example with a light weight pilot and forward baggage only to illustrate the concept.

I also added a bullet to the compartment weight slide highlighting the need to understand the different baggage configuration for a particular aircraft.

A PDF version can be downloaded here: https://drive.google.com/file/d/0B8E...ew?usp=sharing

If you'd like a Powerpoint version, just drop a line.

21 March Edit: Added slide numbers and revised bullet on slide Number 9 regarding baggage limits, which vary depending on RV-type.

Version 1.3 in PDF format can be downloaded here: https://drive.google.com/file/d/0B8E...ew?usp=sharing

Fly safe,

Vac
__________________
Mike Vaccaro
RV-4 2112
Niceville, Florida

Last edited by Vac : 03-22-2017 at 05:20 AM. Reason: Added Revision 1.3 to this post
Reply With Quote
  #83  
Old 06-25-2017, 02:26 PM
Vac Vac is offline
 
Join Date: Jul 2009
Location: Niceville, Florida
Posts: 284
Default Update to Weight and Balance Briefing

Version 1.4 is available via this link: https://drive.google.com/file/d/0B8E...ew?usp=sharing

This version has a couple of slides added based on other forum discussion regarding deviating from designer recommended weight and balance limits.

Fly safe,

Vac
__________________
Mike Vaccaro
RV-4 2112
Niceville, Florida
Reply With Quote
  #84  
Old Today, 09:42 AM
sblack sblack is offline
 
Join Date: Dec 2009
Location: Montreal
Posts: 1,042
Default

There is an error in the slide shown on the home page. Static margin is the distance (in % MAC) between the CG and the neutral point, not the weight (CG) and the "lift". The lift vector is typically somewhere between 20 and 30% (it moves with AOA), but the neutral point is usually 50-60%MAC, depending on the horizontal tail size and moment arm.

A rule of thumb is that you want at least 15% static margin.
__________________
Scott Black
RV 4, with an engine...and other stuff
VAF dues 2016

Last edited by sblack : Today at 09:58 AM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


All times are GMT -6. The time now is 12:55 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.