|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

04-16-2014, 08:44 PM
|
 |
|
|
Join Date: Jul 2013
Location: Lucas, TX
Posts: 36
|
|
IO-540-K1A5D?
I have a line on a IO-540-K1A5D (300 HP) engine. It is a great deal and I am just starting my build. Is there anyone that is using this in their RV-10? I have seen that there may be a issue with the cowl fitting. Just wanted to put a feeler out there to see if it would even work or is it too much trouble. I will be doing some research as well, but I thought I would start with the experts.
Thanks,
John
|

04-16-2014, 08:54 PM
|
|
|
|
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,219
|
|
That engine is roughly an inch wider and 60 pounds heavier than the engine Van's spec's for the airplane. I don't know how the extra width would work, but the weight would reduce your useful load and might result in a very forward CG.
Here's a chart that might help you compare O-540's:
http://www.lycoming.com/Lycoming/PRO...ngineData.aspx
__________________
Kyle Boatright
Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
|

04-17-2014, 09:32 AM
|
 |
|
|
Join Date: Jul 2013
Location: Lucas, TX
Posts: 36
|
|
Quote:
Originally Posted by Kyle Boatright
That engine is roughly an inch wider and 60 pounds heavier than the engine Van's spec's for the airplane. I don't know how the extra width would work, but the weight would reduce your useful load and might result in a very forward CG.
Here's a chart that might help you compare O-540's:
http://www.lycoming.com/Lycoming/PRO...ngineData.aspx
|
I could put some counter weight in the tail to off set the forward CG if needed, it shouldn't have to be much since it is so far from the datum plane. That can be taken into account during the build. The 540-D and 540-K take the same engine mount, does this mean that the height for the prop would line up the same? What modifications would need to be done because it is about an inch wider?
Thanks,
John
|

04-17-2014, 10:37 AM
|
|
Super Moderator
|
|
Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,626
|
|
Weight in Tail :(
Be careful adding weight in the tail to offset heavier engines. It will adversely affect flight characteristics. Yes it might balance, but there is an inertia moment to be dealt with.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
|

04-17-2014, 03:01 PM
|
|
|
|
Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
|
|
Think about mods...
I have found that even simple mods take up tons of time...
Consider that before you make the major mod you are proposing...
__________________
Bob
Aerospace Engineer '88
RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
EFII System 32 - Done
297 HP Barrett Hung
ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...
Dues+ Paid 2019,...Thanks DR+
|

04-17-2014, 04:32 PM
|
 |
|
|
Join Date: Jul 2013
Location: Lucas, TX
Posts: 36
|
|
Quote:
Originally Posted by rocketman1988
I have found that even simple mods take up tons of time...
Consider that before you make the major mod you are proposing...
|
That is why I am asking the question. I don't really want to make the mod, but when there is an opportunity to get a deal such as this, it is hard to pass up. I would much rather stay with tried and true, but saving lots of $$$$ makes it tempting.
|

04-17-2014, 05:14 PM
|
 |
|
|
Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
|
|
You would also have the baffles to deal with. I am
Sure you could make it work, but it would take a lot of time and delay the finish of your project. It is also a consideration for resale. More power is not always better if the kit designer says it will go too fast. I think the biggest issue would be CG, but the time commitment would also be a big deal.
__________________
Jesse Saint
|

04-17-2014, 05:16 PM
|
|
|
|
Join Date: Dec 2008
Location: Big Sandy, WY
Posts: 2,567
|
|
You haven't specified much about this good deal engine. Honestly, I'm not feeling it. I suppose if it were a really good deal you could swap it to an engine builder for something lighter. When you turn from a parallel 540 you start rapidly getting into diminishing returns. Payload, range, money, etc.
__________________
Actual repeat offender.
|

04-18-2014, 03:24 AM
|
|
|
|
Join Date: Oct 2013
Location: Burlington Ontaro
Posts: 18
|
|
IO-540-K1A5D
I just bought a C model that I will send away to be rebuilt into a D model. If you are buying the K model from Art on BARNSTORMERS, I spent a lot of time looking into that core as well. When he removed the wing on his plane he dropped the nose and it hit the ground so hard that it bent the prop in half. Not sure about the US rules but that requires a disassembly in Canada. So buyer be ware, there are no good deals when it comes to your safety.
Andy
|

04-18-2014, 08:30 AM
|
|
|
|
Join Date: Dec 2011
Location: delta, co
Posts: 204
|
|
540K
The K1A5D is also a Large main angle valve and will weigh quite abit more than a IO540C or D parallel valve.
Jesse
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 05:58 AM.
|