VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 10-21-2012, 03:57 PM
Lucky Clover Lucky Clover is offline
 
Join Date: Sep 2012
Location: Portales, NM
Posts: 7
Default Jabiru 3300 RV-3

Just ordered my rv3 kit. Will mostly be using it for cross country trips. The jabiru is 120hp but is much lighter than the other suggested engines. Will I have to worry about my cg?
__________________
RV-3 ordered
Reply With Quote
  #2  
Old 10-21-2012, 04:33 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
Posts: 4,451
Default

Quote:
Originally Posted by Lucky Clover View Post
Just ordered my rv3 kit. Will mostly be using it for cross country trips. The jabiru is 120hp but is much lighter than the other suggested engines. Will I have to worry about my cg?
Yes. So why don't you just use an 150 Lyc?
__________________
VAF #897 Warren Moretti
2021 =VAF= Dues PAID
Reply With Quote
  #3  
Old 10-21-2012, 04:35 PM
Lucky Clover Lucky Clover is offline
 
Join Date: Sep 2012
Location: Portales, NM
Posts: 7
Default

Having to build on tight budget. Can get a new jabiru with fwf for $24000
__________________
RV-3 ordered
Reply With Quote
  #4  
Old 10-21-2012, 04:46 PM
Alschief Alschief is offline
 
Join Date: Jan 2005
Location: Anderson MO
Posts: 440
Default RV3 FWD

Suggest you give the UL Power a look
It is a fine power plant.
__________________
AL & Brenda Smith
RV12, UL Power N495BA Flying
RV6 N495AB Sold
KEOS Neosho, MO
alsmith@olemac.net
alsmith@ulpower.com
Reply With Quote
  #5  
Old 10-21-2012, 04:48 PM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 5,365
Default

You can get a used Lycoming for less....

I flew behind a Jabiru 3300 recently and was impressed by it. The only part I didn't like was its Aerovee carb. Can't see any reason to have one of those. But the engine was smooth and powerful, light and small. Started instantly.

It's roughly 80 to 100 pounds lighter than the Lycomings, and that's bound to introduce some CG issues. If you move the engine forward, you're moving the prop forward and that reduces stability. It's not exactly a slam dunk. But if you can bring it off, you'll find a number of people interested in it.

Dave
Reply With Quote
  #6  
Old 10-21-2012, 05:08 PM
Lucky Clover Lucky Clover is offline
 
Join Date: Sep 2012
Location: Portales, NM
Posts: 7
Default

The jabiru is highly supported and easily installed. Have been looking over the rv3 layout. Considering the ways to move the cg forward without having to relocate the engine forward.
__________________
RV-3 ordered
Reply With Quote
  #7  
Old 10-22-2012, 10:22 AM
JDRhodes JDRhodes is offline
 
Join Date: Feb 2008
Location: Taylorsville, GA
Posts: 748
Default

Quote:
Originally Posted by Lucky Clover View Post
Having to build on tight budget. Can get a new jabiru with fwf for $24000
We spent $10K on a mid time FWF Lycoming WITH and prop and baffle and exhaust. And it fit right on the RV mount and inside the RV cowling with no engineering. Is it brand new? No, but I haven't given it a second thought since it went on, the CG was right from Day 1, and with 1,100 hours to TBO, it'll probably give 10-15 years of flying.

I wouldn't consider a $24,000 engine if I was "building on a tight budget." Especially not an "alternative" engine.
__________________
Jeff Rhodes - Taylorsville, GA
RV-9, 7 - going fast
BC-12D - going slow
jrhodes@v1salesmgt.com
Reply With Quote
  #8  
Old 10-22-2012, 10:42 AM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 5,365
Default

The Sonex props might be reasonable starting places.

The cooling can be dealt with. A friend flies the 3300 and has had oil cooling issues but not cylinder head issues.

The main issues will be the CG and the new cowling.

Dave
Reply With Quote
  #9  
Old 10-21-2012, 06:16 PM
N941WR's Avatar
N941WR N941WR is offline
 
Join Date: Jan 2005
Location: SC
Posts: 12,883
Default

Quote:
Originally Posted by Lucky Clover View Post
...Will I have to worry about my cg?
Yes but since you will need a custom engine mount anyway, have it made longer
Your bigger issue will be controlling the high CHT's the Jabirus are becoming known for.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
Reply With Quote
  #10  
Old 10-21-2012, 06:37 PM
rph142's Avatar
rph142 rph142 is offline
 
Join Date: Feb 2007
Location: Walnut Creek CA
Posts: 520
Default

Moving the cg forward wont be too tough. If I were you I would extend the .032 front side skins, floor, and top skin. You have to cut all of these pieces to size anyway, so it won't take any longer to cut them longer.
__________________
Rob Holmes
RV-3B N59LG - Built, Flown, Sold!
Extra 300 N111XW - Partner, Flown, Sold!
RV-7 NxxxLG
The minimum number of planes one should own is one. The correct number is n+1, where n is the number of planes currently owned. This equation may also be re-written as s-1, where s is the number of planes owned that would result in separation from your partner.

- Veluminati
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 10:27 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.