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08-21-2006, 08:55 AM
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Join Date: May 2005
Location: Effingham, IL
Posts: 68
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Test running engine without wings
Getting ready to test run engine & wondering if it is ok to run the engine at full throttle without the wings as I have see on a lancair or something similar that had the main gear collapse in that situation. Has anyone done this or have any suggestions.
Thanks, Stan
RV7-A QB
Aluthern Ill
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Stan Bahrns
RV-7A QB
N868B 365 hrs
RV12 40 hrs
Effingham,(southern) ILL
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08-21-2006, 09:07 AM
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Join Date: Nov 2005
Location: Tellico Plains, TN
Posts: 561
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As I understand it, it's not recommended to run the engine at all without the wings on. The wings do a lot to damp out the power pulses of the engine, and without them, there have been reports of people damaging the tail skins. I did it with the rotary engine, but wouldn't think of doing it with the Lycoming.
Cheers,
Rusty
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RV-8, SN-80587, built, flown, sold.
RV-3B, SN-10751, rotary engine, built, flown, sold
RV-8, SN-82470, built, flown, sold.
RV-3B, SN-11351, purchased, , flown, sold
A&P - 2018
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08-21-2006, 09:49 AM
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Join Date: Jun 2005
Location: C09 - Morris
Posts: 579
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bad idea ... the wings are needed to reinforce the fuse.
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(This post by: Christopher Checca EAA Lifetime Member #799388)
Allen Checca (father)
Christopher Checca (son)
RV-6A - N468AC
ENGINE: Lycoming 180 HP O-360-A1A
PROPELLER: Senisentch 72FM859-1-85
WEIGHT: Empty Aircraft 1152 lbs
BASED: KC09 - Morris, IL.
Flying since June 6, 2005
N468AC Web Site
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08-21-2006, 10:09 AM
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Join Date: Mar 2005
Location: ...
Posts: 2,049
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Somebody should post a link to that Lancair video...
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Dan Checkoway RV-7
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08-21-2006, 10:58 AM
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Join Date: Dec 2004
Location: Gold Hill, NC25
Posts: 2,398
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I ran my RV6 with no wings to full throttle and didnt die or damage anything. Your results may vary. Im very glad I did this at home cause it gave me lots of stuff to work on.
I did not do this with my 8 cause the big engine scared me 
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08-21-2006, 11:43 AM
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Join Date: Jan 2005
Location: Seattle, WA
Posts: 1,166
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It sure is tempting to start the engine in the driveway, just to see the reaction from the neighbors. They keep asking me if I'm going to take off from the street.
Think I'll wait for both events until I get to the airport and get the wings on permanently. |
08-21-2006, 12:03 PM
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Join Date: Jan 2005
Location: Round Rock, TX
Posts: 807
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Substantial damage could occur to the Fuselage from the engine kicking or possibly back firing. It is not designed to take this kind of load without the wings on. They give it a much longer moment and also take that kicking load off the landing gear. I too have been tempted but I'm so close to moving it to the Airport it would be silly not to wait till it looks like a plane. I wouldn't recommend it.
Dan- wheres that video? I'd like to see it, others may too. This board is all about learning from others.
-Jeff
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08-21-2006, 12:43 PM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Quote:
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Originally Posted by RV_7A
Dan- wheres that video? I'd like to see it, others may too. This board is all about learning from others.
-Jeff
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It's on the VAF board somewhere. I did a search for it, but haven't found it yet...
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Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
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08-21-2006, 12:52 PM
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Join Date: Jun 2005
Location: Milwaukee, WI area
Posts: 2,967
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Found it! Is this what we're thinking of?
Lancair engine start, no wings...
Here's a different format...be careful of the end, I think it has some language...
Mpeg format
__________________
Chad Jensen
Astronics AES, Vertical Power
RV-7, 5 yr build, flew it 68 hours, sold it, miss it.
Last edited by cjensen : 08-21-2006 at 12:55 PM.
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08-21-2006, 01:29 PM
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fugio ergo sum
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Join Date: Apr 2006
Location: Carlsbad, NM
Posts: 1,912
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It looks like the gear just retracted. Does anyone know if this was actually related to the engine run, other than that the brakes were used?
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Larry Pardue
Carlsbad, NM
RV-6 N441LP Flying
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