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 11-20-2019, 10:26 AM
Radioflyer Radioflyer is offline
 
Join Date: Nov 2009
Location: Boston
Posts: 197
Default Helicopter engines in planes

I noticed an RV-6A had an HIO-360-B1A engine. (The engine has close to 11,000 hrs total time on it!) How suitable is a "helicopter" variant engine for use as an airplane engine?
Reply With Quote
  #2  
Old 11-20-2019, 11:59 AM
crabandy crabandy is offline
 
Join Date: Jan 2010
Location: Ottawa, Ks
Posts: 2,309
Default

I have an HIO-360-A1F6D variant in my 7, but it now has a carb and electronic ignition.
__________________
RV 7 500 hours and counting
20 donation done
Reply With Quote
  #3  
Old 11-20-2019, 12:44 PM
jask jask is offline
 
Join Date: Feb 2018
Location: Ramona, CA
Posts: 228
Default Helo engine

They have no ability to have a cs prop installed. There is one in AZ right now that has not flown in 11 years. The odds of that engine being ok is low.
__________________
RV-7 builder Ramona, CA.
Free prop balancing for Vanís owners.

Last edited by jask : 11-20-2019 at 12:47 PM.
Reply With Quote
  #4  
Old 11-20-2019, 02:07 PM
Radioflyer Radioflyer is offline
 
Join Date: Nov 2009
Location: Boston
Posts: 197
Default

Quote:
Originally Posted by jask View Post
They have no ability to have a cs prop installed. There is one in AZ right now that has not flown in 11 years. The odds of that engine being ok is low.
Yeah plus apparently the 11,000 hrs TT, even lower.
Nevertheless, other than no CS, I can't find any disadvantage to using a helicopter HIO-360 engine as an airplane engine. I would have thought they had a special cam or more fins for cooling or....
Reply With Quote
  #5  
Old 11-20-2019, 02:28 PM
Canadian_JOY Canadian_JOY is offline
 
Join Date: Aug 2007
Location: Ontario, Canada
Posts: 2,474
Default

Some H- engines operate at a different max RPM. Some are derated for the rotary wing application while some are flogged like rental go-karts to make max power. It all depends on the engine and the helicopter it was powering.
Reply With Quote
  #6  
Old 11-20-2019, 02:57 PM
Toobuilder's Avatar
Toobuilder Toobuilder is offline
 
Join Date: Jul 2009
Location: Mojave
Posts: 4,841
Default

The HIO on my RV-8 has a CS prop, my spare HIO has provisions for a CS prop, as does my neighbors HIO 360.

In many cases, the "H" designation is simply a unique configuration of "airplane" parts. Cams, cranks, rods, pistons - often identical to the airplane parts, right down to the part numbers.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.

Michael Robinson
______________
Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
Reply With Quote
  #7  
Old 11-20-2019, 04:45 PM
jask jask is offline
 
Join Date: Feb 2018
Location: Ramona, CA
Posts: 228
Default Lycoming engine

From what I see, all of the helo engines came with solid cranks. These are usually old engines, the one in AZ is a 1966, so the cranks may have been replaced if it has a cs prop.
__________________
RV-7 builder Ramona, CA.
Free prop balancing for Vanís owners.
Reply With Quote
  #8  
Old 11-20-2019, 05:23 PM
RVDan RVDan is offline
 
Join Date: Jun 2012
Location: Frederick, MD
Posts: 942
Default

I used to overhaul HIO360D1A engines. Iirc, they had a hollow crank and the case had the port for a governor line, but the crank didn?t have the pickup hole for the oil pressure. I could be wrong, it was 30 years ago.
__________________
Dan Morris
Frederick, MD
PA28-140
Hph 304CZ
RV6 built and sold
N199EC RV6A flying
Retired Aerospace Engineer and A&P/IA
Reply With Quote
  #9  
Old 11-20-2019, 05:30 PM
FasGlas's Avatar
FasGlas FasGlas is offline
 
Join Date: Mar 2014
Location: Idaho ID40
Posts: 783
Default

I had a Glasair 1 RG with an HO-360 injected. Had a Hartzell C/S prop. Ran good.
__________________
Beech D17S Staggerwing
Lancair 360
Maule M5-235C
Cessna 120
A&P IA
Reply With Quote
  #10  
Old 11-20-2019, 05:43 PM
smokyray's Avatar
smokyray smokyray is offline
 
Join Date: Jan 2005
Location: TX32
Posts: 1,966
Default Yea Verily

Quote:
Originally Posted by Radioflyer View Post
I noticed an RV-6A had an HIO-360-B1A engine. (The engine has close to 11,000 hrs total time on it!) How suitable is a "helicopter" variant engine for use as an airplane engine?
My RV6X sports an 0-360J2A (Robbie R22)
Helicopter engines vary based on HP, installation and service life. The cool part is some actually are rated higher HP than their aircraft counterparts due to high comp pistons and the fact they aren’t swinging a prop. They also can be found at a bit lower cost.

I like the (0-360) “J” as it’s mounted in the Robbie horizontal and only requires a new fuel pump cam to utilize a mechanical fuel pump. It uses the conical mounts which my previous 0320A also shared. The fan belt hub can be easily removed in lieu of a normal prop shaft ext.
I use a Catto 70/70 2 blade and a Marvel MA4-5, P-Mag, Electroair dual EI.
Great performance, smooth running and 1/2 the price.

Win Win
V/R
Smokey
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 07:17 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.