VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #1  
Old 12-28-2012, 11:06 PM
idleup idleup is offline
 
Join Date: Oct 2005
Location: San Antonio, TX
Posts: 281
Default Load Analysis Feedback Please...

Would you guys be so kind as to review my Load Analysis worksheet and tell me if you see anything that looks incorrect or have recommendations to make it better? I have spent quite a bit of time on this but at the end of the day still question whether I know what I am doing and would appreciate some peer review... Thanks.



Of if you would prefer to download the PDF Master_Load_Analysis_v1.pdf
__________________
Matt Johnson
RV-7A Finishing Kit
http://www.rv7a.com
Reply With Quote
  #2  
Old 12-28-2012, 11:41 PM
kevinh's Avatar
kevinh kevinh is offline
 
Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
Default

My only comment was that I needed to increase the fuse size for my flaps motor to 10amps. This was after it tripped once in cold weather with my original 5A fuse (the wire was sized adequately for this larger current)
__________________
-kevinh, Track my RV-7A, flying, alas, sold in 2013 after 450ish hours. (I'm now building something different)
Reply With Quote
  #3  
Old 12-29-2012, 08:48 AM
idleup idleup is offline
 
Join Date: Oct 2005
Location: San Antonio, TX
Posts: 281
Default

Kevin, I increased the flap fuse to 10A as per your recommendation. Should I also bump up the wire gauge from 18 to 14? what did you use?

Thanks,
Matt

Quote:
Originally Posted by kevinh View Post
My only comment was that I needed to increase the fuse size for my flaps motor to 10amps. This was after it tripped once in cold weather with my original 5A fuse (the wire was sized adequately for this larger current)
__________________
Matt Johnson
RV-7A Finishing Kit
http://www.rv7a.com
Reply With Quote
  #4  
Old 12-29-2012, 10:51 AM
kevinh's Avatar
kevinh kevinh is offline
 
Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
Default

I used 14AWG, but for this bundle (the seat/flap area) I just grounded locally - so no ground wire. (Intermittent usage yada yada).
__________________
-kevinh, Track my RV-7A, flying, alas, sold in 2013 after 450ish hours. (I'm now building something different)
Reply With Quote
  #5  
Old 12-29-2012, 11:13 AM
Walt's Avatar
Walt Walt is offline
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,686
Default

The 430W "com" only uses 15ma in receive, the 6A is during actual transmit time so unless you're one of those guys that like to chat on the radio a lot that should be 15ma.

Not sure why they have the audio panel so high but that is probably at full volume driving a speaker, I suspect the normal current is probably much less than that.

On the other hand, the alternator field is probably more than 1 amp, normally about 5 amps for full alt output.
__________________
Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
Reply With Quote
  #6  
Old 12-29-2012, 11:53 AM
MauiLvrs's Avatar
MauiLvrs MauiLvrs is offline
 
Join Date: Jan 2008
Location: KTCY
Posts: 643
Default

Quote:
Originally Posted by Walt View Post
The 430W "com" only uses 15ma in receive, the 6A is during actual transmit time so unless you're one of those guys that like to chat on the radio a lot that should be 15ma.
I'd leave it at 6A ...
And set the Alt Field for 5A.
__________________
Dave & Trina
RV-9A Flying - 330 Hrs. Painted Finishing the interior.
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 04:07 AM.


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.