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turf runways
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johngoodman



Joined: 18 Sep 2006
Posts: 530
Location: GA

PostPosted: Thu Feb 06, 2014 8:16 am    Post subject: Re: turf runways Reply with quote

Quote:
Well, the Monster retreads do have a bigger diameter, but you can also add diameter without the extra wt of the thicker Monster tread by using 6:00X6 tires instead of the specified 15X^:00X6 tires Vans calls for. Or you could use 6:00X6 Monster retreads for a HiRider version.


Kelly brings up an interesting point. Since I am "pantless", Van's 15x6:00x6 tires aren't necessary. I obviously could go with regular 6:00x6 tires and get an inch higher up for less money. However, that means the nose tire needs a little "bump up" as well. The nose wheel has limitations due to the size of the fork. How would you deal with that?

John


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Kelly McMullen



Joined: 16 Apr 2008
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Location: Sun Lakes AZ

PostPosted: Thu Feb 06, 2014 8:27 am    Post subject: turf runways Reply with quote

Why would you need a bigger front tire? Bigger means more weight and consequently more wear on nose fork even if it fit. Maybe the pivot for the fork could be extended to raise the nose. If more prop clearance is needed, perhaps a 3 blade with a little shorter blades would do the trick. I don't think there is any significance to the slight change in angle of attack if the mains are an inch taller, since you will lift the nose as soon as wings and tail generate some lift.

On Thu, Feb 6, 2014 at 9:16 AM, johngoodman <johngoodman(at)earthlink.net (johngoodman(at)earthlink.net)> wrote:
Quote:
--> RV10-List message posted by: "johngoodman" <johngoodman(at)earthlink.net (johngoodman(at)earthlink.net)>


> Well, the Monster retreads do have a bigger diameter, but you can also add diameter without the extra wt of the thicker Monster tread by using 6:00X6 tires instead of the specified 15X^:00X6 tires Vans calls for. Or you could use 6:00X6 Monster retreads for a HiRider version.


Kelly brings up an interesting point. Since I am "pantless", Van's 15x6:00x6 tires aren't necessary. I obviously could go with regular 6:00x6 tires and get an inch higher up for less money. However, that means the nose tire needs a little "bump up" as well. The nose wheel has limitations due to the size of the fork. How would you deal with that?

John

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johngoodman



Joined: 18 Sep 2006
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Location: GA

PostPosted: Thu Feb 06, 2014 9:15 am    Post subject: Re: turf runways Reply with quote

Quote:
Why would you need a bigger front tire? Bigger means more weight and consequently more wear on nose fork even if it fit. Maybe the pivot for the fork could be extended to raise the nose. If more prop clearance is needed, perhaps a 3 blade with a little shorter blades would do the trick. I don't think there is any significance to the slight change in angle of attack if the mains are an inch taller, since you will lift the nose as soon as wings and tail generate some lift.


I only brought it up because there would be a tiny change in attitude on the ground. Probably not significant, but nose down for sure. Would it be noticeable? Probably not.
It just seems logical that a larger main tire, would suggest a larger nose tire, as well. but I'm no expert.
I've flown in and out of grass strips, and it's not a problem. But, it gets a little creepy taxiing on grass off the runway - always thinking of gopher holes....

John


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Mauledriver(at)nc.rr.com
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PostPosted: Thu Feb 06, 2014 1:40 pm    Post subject: turf runways Reply with quote

I now have 400 hours operating out of the lit turf at 8NC8 in Durham NC. Our field is considered 'rough'. I didn't do anything special with my pants beyond the standard stuff for a build of my vintage (finished Aug 2011). I did leave a healthy margin around the tires but my pants are still too low for many airport's chocks and they still look like they fully enclose the tire.

How rough? I found a cracked nose wheel during my last condition inspection: Photo of cracked nosewheel
I can honestly say that I've never even come close to any kind of nose first or 3 point touchdown so I think this was from just normal wear and tear on our turf.

The pants are showing some wear but are holding up just fine. My sense is that long grass only stains the pants. You have to hit something to damage them. I've never witnessed a landing of a '10 on my turf so I can't speak to how it sounds or looks.

I did just crack a wheel pant when I got a flat tire in Pompano Beach. My ten had been moved from tie down to front of the ramp for a morning departure. It didn't have flat then since they managed to get chocks under the pant but when it went flat, my pant was cracked front and back. Fortunately I was able to continue on once the flat was fixed and I'm glad it happened there instead of one of the airports I went to in the Bahamas(!!).

Forty hours earlier I had swapped tires left and right for wear and replaced the tubes with leak guards. I didn't get a chance to inspect the tube so I can only guess what happened. There was quite a bit of construction going on at KPMP and I had to taxi in areas shared with construction equipment. I didn't have the flat when I landed.

I've landed my old Maule at Triple Tree. That is a smooooooth field, especially where they fly models.

Anyway, that's the only damage I've really experienced despite operating regularly out of a rough field. The pants do just fine.

Bill "it's pretty damn good in the Bahamas" Watson

On 1/27/2014 8:33 PM, rv10flyer wrote:

[quote]
Quote:
--> RV10-List message posted by: "rv10flyer" <wayne.gillispie(at)gmail.com> (wayne.gillispie(at)gmail.com)

I have flown into SC00 Triple Tree SC twice. We sat watching everyones pants shake like crazy and that runway is supposedly golf course smooth. If I lived on a grass strip I would beef up wheel pant mounts(switch to stainless) and fiberglass or just remove them.

Maybe we will hear from Bill "Living the life in an airpark with turf" Watson. He might have to put some snow skis on this week.

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Wayne G.
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PostPosted: Thu Feb 06, 2014 2:46 pm    Post subject: turf runways Reply with quote

Thanks Bill,
It's good to see all the positive turf runway reports. If you get a chance, I'm sure we would all benefit from a trip report on your Bahama experience.

Thanks again,
Marcus

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On Feb 6, 2014, at 16:38, Bill Watson <Mauledriver(at)nc.rr.com> wrote:

I now have 400 hours operating out of the lit turf at 8NC8 in Durham NC. Our field is considered 'rough'. I didn't do anything special with my pants beyond the standard stuff for a build of my vintage (finished Aug 2011). I did leave a healthy margin around the tires but my pants are still too low for many airport's chocks and they still look like they fully enclose the tire


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