RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Thread Tools Search this Thread Display Modes
Old 04-30-2018, 07:30 PM   #1
New Member
1972 25' Tradewind
KEMP , Texas
Join Date: Apr 2018
Posts: 2
Newbie owner

Just inherited a 72 land yacht. My question: will be parked for living quarters at rv park. Is it ok just to run off 120 without using battery and univolt?
rrwebb123 is offline   Reply With Quote
Old 04-30-2018, 08:16 PM   #2
Rivet Master
dbj216's Avatar

1986 34' Limited
1975 27' Overlander
Conifer , Colorado
Join Date: Jun 2009
Posts: 6,435
Images: 1
Welcome to Air Forums: Your trailer was designed to run off of 12v. All the lights, fans, furnace, water heater, water pump and the like need 12v to operate. The 115v AC powers the outlets and the air conditioner. The fridge will also run on 115v AC but won't run without 12v and propane if the power is disconnected. 115v AC also powers the converter which then powers the 12v system as well as keeps the battery charged up.

Your trailer is designed to use 30 amps of 115v AC power. That is about 3000 watts of power. The AC may draw 1800 watts of that power on a hot day. You really can't run an electric hair dryer or microwave at the same time as the air conditioner.

You also need a good propane system and good propane appliances like the furnace, stove, oven and water heater. It's an old trailer, make sure the appliances are in good operating order. Many times the igniters on these appliances are powered with 12v.

It is certainly possible to run the trailer on 115vAC without a 12v battery. But you need the 12v converter so the 12v systems can work. I might add the battery acts like a "accumulator tank" to help reduce 12v voltage ripple. You can't tow the trailer without a good 12v battery to run the emergency brake system. You would be wise to have both a working converter and battery while using the trailer in a trailer park.

I hope others will provide more information.

WBCCI #8607
VAC Region 11

See my 1966 Trade Wind Renovation Documentation:
Knowledge Base Airstream Trailers

See my 1975 Overlander Improvement Journal:
Knowledge Base Airstream Trailers

See our 1976 Sovereign Renovation Project:
Knowledge Base Airstream Trailers
dbj216 is offline   Reply With Quote
Old 04-30-2018, 08:31 PM   #3
New Member
1972 25' Tradewind
KEMP , Texas
Join Date: Apr 2018
Posts: 2
Thank you so much for the information!
rrwebb123 is offline   Reply With Quote
Old 04-30-2018, 08:58 PM   #4
4 Rivet Member
Byron Center , Michigan
Join Date: Aug 2017
Posts: 275
David nailed it. You can run without a battery when left stationary/long term, as long as your converter is working and making 12v for everything. Iíd suggest wrapping the battery cables with electrical tape to make sure they donít ground out as the converter will still be trying to charge the battery via those cables (electrically hot).
YippieKiYa is offline   Reply With Quote
Old 04-30-2018, 09:02 PM   #5
Rivet Master
SteveSueMac's Avatar

2012 27' Flying Cloud
W , New England
Join Date: Oct 2012
Posts: 7,397
You got the answers to your specific questions - I'd just like add condolences for whoever it was who passed for you to become the owner of this beauty - that is quite a gift! The only other thing I'd add is that with all you were told about what it was designed for - it was ultimately designed for road trips so hopefully you can enjoy that side of things too.

Welcome and all the best!
SteveSueMac is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbie AS Bambi Owner! KY Girl Our Community 15 02-17-2020 08:47 AM
new owner of used Airstream 2015 Bambi 22FB Owner -- need help Scran Member Introductions 11 10-03-2017 01:35 PM
Newbie - Airstream owner's loyalty - Why? junaclare Our Community 26 02-26-2017 08:02 AM
NEW OWNER of One Owner 1972 Ambassador 29 foot Mrwaterway Member Introductions 11 11-20-2009 01:53 PM
Newbie A/S owner - floor repair ? Gobstopper Repairing/Replacing Floor &/or Frame 10 03-11-2003 12:38 PM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 03:40 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.