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G ratings

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Sean Blair

Joined: 09 Jan 2006
Posts: 39
Location: Colorado Springs

Posted: Thu Aug 17, 2006 1:40 pm Post subject: G ratings

I just had the opportunity to take a terrific ride in an AT-6 Texan this last weekend.  Complete with all the aerobatics I cared to enjoy.  What a blast!!!  We got the G reading to just under 4. The secret to a calm stomach.....half a Diet Dr. Pepper for breakfast on the way there. 



Just out of curiousity.....what are the positive and negative G ratings of the ten?  I haven't seen these published anywhere.  I know we won't do the aerobatic thing in our 10, but out of comparison to my recent experience I want to know.



Thanks,



Sean Blair

#40225

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_________________
Sean S. Blair
#40225
N967SB (reserved)

Tim(at)MyRV10.com
Guest

Posted: Thu Aug 17, 2006 4:22 pm Post subject: G ratings

Hi Sean,

Here's a link from Van's site regarding the engineering of the RV-10.



http://www.vansaircraft.com/public/rv-10int2.htm



I think it was designed for use within the standard category normal

limits of +3.8 and -1.52 G's.



That's great that you took a flight in an AT-6 Texan.  I'm hoping to

do some advanced recovery training some day, perhaps in a plane

like that.



We too had a new experience this past weekend.  We went to 3 local

fly-in's in the RV-10, one of which was at a small grass strip

with just about every type of small plane and ultralight you can

imagine.  We paid and took the 4 of us up in a 1929 Curtis Wright

TravelAir Biplane.  It sure was an experience!  I've never

seen my youngest so happy in an airplane. (photo attached)



This reminds me....from time to time, the discussion turns to where

to put the OAT probe in the airplane.  One builder recently told

me they didn't want to tear things up to move the wire out to

under the wing, somewhere mid-span, like I suggested...and that

they would mount it far back aft under the tailcone.   From the

ride in the TravelAir, I can tell you for sure that you would

never want to do this.  I could feel the heat off the cylinders

a few feet back within the boundry layer around the airplane.

There is almost no possible way that your OAT will read properly if

it's inline with the prop, either in the sun on top, or the exhaust

flow on the bottom.  Move it out to a place under the wing, near an

inspection panel.  If you don't, not only will your chance of icing

maybe go up, but your systems like in my case the Chelton's won't

be able to accurately calculate density altitude and True Airspeed.



Anyway, nice to see you're not so focused on the -10 that you

won't get out and have some fun!

Tim Olson - RV-10 N104CD - Flying

do not archive

seanblair(at)adelphia.net wrote:

 	  Quote: 	
		   

 

 I just had the opportunity to take a terrific ride in an AT-6 Texan

 this last weekend.  Complete with all the aerobatics I cared to

 enjoy.  What a blast!!!  We got the G reading to just under 4. The

 secret to a calm stomach.....half a Diet Dr. Pepper for breakfast on

 the way there.

 

 Just out of curiousity.....what are the positive and negative G

 ratings of the ten?  I haven't seen these published anywhere.  I know

 we won't do the aerobatic thing in our 10, but out of comparison to

 my recent experience I want to know.

 

 Thanks,

 

 Sean Blair #40225

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Sean Blair

Joined: 09 Jan 2006
Posts: 39
Location: Colorado Springs

Posted: Thu Aug 17, 2006 9:58 pm Post subject: G ratings

Hey Tim,



Thanks for the direction.



You are absolutely correct.  Enjoying flight and all that goes with it is a

major reason for the build.  The people that surround it, the unbelievable

scenery, the excitement of your youngest as she gets to take a ride in a

very cool 1929 Curtis Wright TravelAir Biplane.....and so much more.



All of us building are very blessed for the opportunity to do so.  Can you

think of many things better than pouring hours of your time into a project

that allows for so much fun with your family and the satisfaction of such an

accomplishment?  You and the others that have completed the project....now

fly!  The rest of us can't wait to get there, but along the way there are

small victories that are adding up to the big payoff.  



For now....I'm a builder that is a student pilot.  I have much to learn.

Soon I will be the certificated pilot of an airplane that I was fortunate to

build.  



I've attached a picture of the AT-6.  The pilot/owner is Dick Jones.  The

plane is "The Spanish Lady" and it is beautiful on the ground and in the

air.  Unfortunately, he must sell it due to high fuel costs.  Anyone want to

upgrade?



Thanks for your help, again.



Sean Blair

#40225     



  



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_________________
Sean S. Blair
#40225
N967SB (reserved)

Dick Sipp

Joined: 11 Jan 2006
Posts: 215
Location: Hope, MI

Posted: Fri Aug 18, 2006 1:51 am Post subject: G ratings

Hi Sean:



It's on page 21 of the final inspection and flight test section of the 

builder's manual.  As Tim posted +3.8 and -1.9 at a gross weight of 2700 

lbs.

There are a couple of paragraphs on G loading and testing.  This section has 

lots of other good "stuff"; it may not come until you order the finish kit 

if you are not that far along.



There is no discussion about "rolling Gs" so you have to assume these limits 

are for none rolling conditions only.  Pulling near limiting G loads at the 

same time as a roll input can easily overstress the down aileron wing.



Any of the aerobatic RVs will fly rings around an AT6, sure miss the RV4. 

Bananas are good for breakfast too..they taste the same coming up as going 

down.



All the best.



Dick Sipp

40065 finish kit

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AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Fri Aug 18, 2006 8:17 am Post subject: G ratings

Dick is a fine gentleman and I too did some aerobatics with him and

Spanish Lady back in 1990 when I was producing airshows for the Blues.

He was based at Centennial (Colorado) and the memory of our low pass

over Chatsworth Reservoir at 50' AGL was unforgettable.



This is a well maintained T-6 if there are other Warbird fans within the

RV-10 community.



John Cox

#40600



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