RE: WACO YMF

RE: WACO YMF Gallery slideshow

slideshow

View related threads: (in this forum | in all forums)

Logged in as Guest

Users viewing this topic: Tsquadron

Search This Thread

Printable Version

All Forums >> RC Airplanes >> Golden Age, Vintage & Antique RC >> RE: WACO YMF Page: << < prev 127 128 [129] 130 131 132 133 134 135 136 next > >>

Login

Message

<< Older Topic Newer Topic >>

RE: WACO YMF - 8/2/2007 4:17 PM

Stickbuilder

Posts: 8422
Joined: 11/20/2005
Last Login: 5/18/2013
From: Wildwood, FL, USA
Status: offline

quote:

ORIGINAL: Jim Henley

H-500, Great looking airplane, I really like that color combination. I'm getting paint on the fuselage and tail feathers. ( Can't spell empenage) I plan on having some photos this weekend. Also ordered my spinner from Tru Turn so hope that shows up fairly soon.

Jim,

Which spinner are you going to use? I'm thinking about using the 1.75" AT-6 spinner and having them cut it for the Zinger small pitch prop. What do you think?

Bill, AMA 4720
WACO Brotherhood #1

_____________________________

Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

Hide Signatures

(in reply to Jim Henley)

Post #: 3201

RE: WACO YMF - 8/3/2007 12:48 AM

SuperCub Man

Posts: 616
Joined: 9/29/2002
Last Login: 4/6/2013
From: St. Catharines, ON, CANADA
Status: offline

khodges - Way back on page 142 Post #2829 - you kindly showed me how you installed your G26. I am approaching that stage very soon and just to clarify it for my slow brain - you mounted the engine on (new) 1/4"ply former F4B, cutting open the 1" balsa F2 to do so. It appears that you left off F1 1/8"ply as being redundant. My motor and mount are a tad under 5 1/2". The plan measures 5 3/4"from F4 to 1/8" in front of the cowl, thus it would appear that I have about 1/4" to play with plus the thickness of F1 if it is left off!
This would work well and means I don't have to cut back on the crutches to allow extra space up front. I could simply add a 1/4"ply pad back of the motor mount to fill the space. Am I right?? I may leave the 1/8 Ply F1 in place for cowl attachment points.

Thanks

< Message edited by SuperCub Man -- 8/3/2007 12:49 AM >

_____________________________

Jim, MAAC #5343
WACO Brotherhood #56

Hide Signatures

(in reply to khodges)

Post #: 3202

RE: WACO YMF - 8/3/2007 4:07 AM

Jim Henley

Posts: 516
Joined: 11/10/2005
Last Login: 5/18/2013
From: Omaha, NE, USA
Status: offline

Bill,
I ordered the 2 1/4 spinner and had it cut for 18 X 6 Master Airscrew. I don't know if I will be able to swing a prop that big efficently wth the Saito 150, but figured 18 X 6 would be the largest prop I would ever use on this application. The Great Planes Super Stearman comes with a 2 1/2 inch spinner (Great Planes part) and it looks very good on the Stearman. Tru Turn does not list a 2 1/2 in the AT-6 style, so I had to choose between the 2 1/4 and 2 3/4. So I went with the 2 1/4 unit. I'll post some photos when it gets here, hopefully I will have the clear coat on the fuselage and empenage and perhpas seeing it mounted would help you decide on a size.

_____________________________

Jim,
WACO Brotherhood #3, AMA 816592, IMAA 41683,

Hide Signatures

(in reply to Stickbuilder)

Post #: 3203

RE: WACO YMF - 8/3/2007 5:34 AM

aminiet

Posts: 333
Joined: 12/7/2004
Last Login: 5/12/2013
From: humble, TX, USA
Status: offline

Gentlemen.

I remember reading on an earlier post, some one asking about scale pinking shears.
Fiskars makes a small pair of scissors, they call them mini-pinking paper edgers, They cut paper well but not the polyester fabrics.
The distance between the tip of the pinking is .100" and .050" for the depth. The entire scissors is 6" long, it is a cheap made tool but we are not making tuxedos here.
It will have to be ordered on line, my local walmarts did not have it.

Angel
B 58

_____________________________

SO MANY WACOS, SO LITTLE TIME.......

Hide Signatures

(in reply to Jim Henley)

Post #: 3204

RE: WACO YMF - 8/3/2007 5:39 AM

skylarkmk1

Posts: 1981
Joined: 9/25/2004
Last Login: 5/18/2013
From: Festus, MO, USA
Status: offline

Bill,

The YMFs and UMFs that I have seen pictures of had the first four types of spinners; Wacos (radial engines) had at least 7 different types

1 None (no picture)

2 Small Pointed or Rounded on the on planes with the Curtis Reed metal props

3 Small Rounded with bolt plate, on the Sensenich Wood props

4 Large like a standard profile spinner YMF Classic NC 14081

5 Large like found on the Beechcraft Staggerwing or Waco SRE NC 58785

6 Large to streamline the fuselage without a cowl, Waco ATO NC 906H

7 Large Pointed for three bladed prop

Attachments

Click for fullsize	Click for fullsize	Click for fullsize	Click for fullsize
Click for fullsize	Click for fullsize

_____________________________

John F Howard (aka skylarkmk1)
AMA 10955, WACO Brotherhood #26, AWC, NWC

Hide Signatures

(in reply to Stickbuilder)

Post #: 3205

RE: WACO YMF - 8/3/2007 11:10 AM

Hughes500E

Posts: 1485
Joined: 11/23/2002
Last Login: 5/17/2013
From: Armstrong, BC, CANADA
Status: online

Weather is taking a turn for the worst up here; I figure I will take advantage of it and make an alteration. I never received any templates of the main landing gear wire, I just fudged it! I fly off green grass but it sure looks low! Can I ask one of you guys a favour, could someone take a few measurements for me?

I am thinking from solid ground to the center of your spinner or crank and also one from the outside to the outside of your wheels or wheel pants. If I am really far out, I will make a few changes!

Many thanks
Steve

Hide Signatures

(in reply to skylarkmk1)

Post #: 3206

RE: WACO YMF - 8/3/2007 12:27 PM

aminiet

Posts: 333
Joined: 12/7/2004
Last Login: 5/12/2013
From: humble, TX, USA
Status: offline

Steve.

On my 1/5 scale, I get the following with dubro 4" tires on.
From the ground to the top of the engine mount runners, 11 inches exact.
From the bend radius for the tire axel to the opposite side bend radius, 15 1/4"
From the bottom of the fuse. to the ground is 6 5/8 "
Hope this helps.

Angel
B 58

_____________________________

SO MANY WACOS, SO LITTLE TIME.......

Hide Signatures

(in reply to Hughes500E)

Post #: 3207

RE: WACO YMF - 8/3/2007 8:55 PM

Hughes500E

Posts: 1485
Joined: 11/23/2002
Last Login: 5/17/2013
From: Armstrong, BC, CANADA
Status: online

Thanks, that should do

Hide Signatures

(in reply to aminiet)

Post #: 3208

RE: WACO YMF - 8/4/2007 4:59 PM

Redwulf__34

Posts: 596
Joined: 8/29/2006
Last Login: 2/13/2013
From: Harrisonburg, VA, USA
Status: offline

Hey Hughs, Whats the weather turning to up there? How far north are you? I'm stuck down here in hot old Virginia trying to finish up one I started too late in building season. I have a hard time building when it's this hot out. Next time I start sooner!

Hide Signatures

(in reply to Hughes500E)

Post #: 3209

RE: WACO YMF - 8/4/2007 8:20 PM

Hughes500E

Posts: 1485
Joined: 11/23/2002
Last Login: 5/17/2013
From: Armstrong, BC, CANADA
Status: online

I'm in the southern interior, sunny Okanagan we call it, wine country!
Just forecasting some thunder showers over the next few days is all. I was quite shocked to actually get my Waco done this year! I already have my winter project lined up, going to build a kit this time, Topflite's Spitfire!

Hide Signatures

(in reply to Redwulf__34)

Post #: 3210

RE: WACO YMF - 8/5/2007 2:27 AM

Live Wire

Posts: 5885
Joined: 11/20/2002
Last Login: 5/18/2013
From: Sterling , CO, USA
Status: online

I thought you would try a scratch build

that is what has me side tracked

ziroli P 38 and this is supposed to be the flying season

Larry

_____________________________

Larry K AMA 36417
Sig Kadet Brotherhood # 4 WACO Brotherhood #34 Cub Brotherhood 14

Hide Signatures

(in reply to Hughes500E)

Post #: 3211

RE: WACO YMF - 8/5/2007 4:55 AM

Hughes500E

Posts: 1485
Joined: 11/23/2002
Last Login: 5/17/2013
From: Armstrong, BC, CANADA
Status: online

I am hooked on scratch building, I am actually working on blowing up a set of plans for the Hughes Racer. After scratch building this Waco, I am taking a bit of a break

Hide Signatures

(in reply to Live Wire)

Post #: 3212

RE: WACO YMF - 8/5/2007 5:02 AM

Live Wire

Posts: 5885
Joined: 11/20/2002
Last Login: 5/18/2013
From: Sterling , CO, USA
Status: online

I think I will take a break after this one

It is like building 3 Pica kits. Stick stick and more sticks

_____________________________

Larry K AMA 36417
Sig Kadet Brotherhood # 4 WACO Brotherhood #34 Cub Brotherhood 14

Hide Signatures

(in reply to Hughes500E)

Post #: 3213

RE: WACO YMF - 8/5/2007 7:50 AM

khodges

Posts: 5438
Joined: 7/3/2003
Last Login: 2/18/2011
From: newton, NC, USA
Status: offline

quote:

ORIGINAL: SuperCub Man

khodges - Way back on page 142 Post #2829 - you kindly showed me how you installed your G26. I am approaching that stage very soon and just to clarify it for my slow brain - you mounted the engine on (new) 1/4"ply former F4B, cutting open the 1" balsa F2 to do so. It appears that you left off F1 1/8"ply as being redundant. My motor and mount are a tad under 5 1/2". The plan measures 5 3/4"from F4 to 1/8" in front of the cowl, thus it would appear that I have about 1/4" to play with plus the thickness of F1 if it is left off!
This would work well and means I don't have to cut back on the crutches to allow extra space up front. I could simply add a 1/4"ply pad back of the motor mount to fill the space. Am I right?? I may leave the 1/8 Ply F1 in place for cowl attachment points.

Thanks

Sorry I didn't reply sooner, just got back from Noo Yawk about an hour ago. I'm sorry, but all the "F4B" and "F1" stuff doesn't mean much to me, as my plane is the ARF version, and the structure is undoubtedly a tad different from the kit. I'm not sure how the rounded front edge of the fuse is done on the kit, versus the ARF. Basically, my G-26 is centered on the firewall, and placed so that the prop hub was just proud of the cowl front, about 5-1/2 inches, I think. Forward of my firewall is a "frame" of balsa blocks, and sanded to the rounded shape of the sub-cowl. The firewall is recessed behind this, about an inch, with a "window" just larger than the mounting plate of the G-26. My backplate is spaced about 1/2 inch forward of the firewall. Since my firewall had a considerable amount of right thrust built in, and I didn't want any, I used different length spacers on the right side and left side of the mounting plate to remove this from the actual engine mounting.

Looks like not much has happened in a week; it's good to be back. NYC is a great place to visit, but I'd slit my own throat if I had to live there. I got home to find that my Ikon UPF-7 kit FINALLY arrived. I haven't looked real close yet, but the laser-cut parts look pretty nice. I pulled out the plans; 4 pages worth, and he sent me TWO sets, so I'll have one set to hang up and one set to build on. The fuse uses a truss framework that you build two sides of and then complete top and bottom, and add formers to shape it for stringers; all in all it looks pretty strong. Wing rib and stringer counts are scale, and the cabane and wing struts are similar to the Pica YMF kit, as is the langing gear He sent all the wires pre bent, but I will probably do something similar to my UMF using carbon fiber. The advertised finished weight is 12-16 pounds, also similar to the Pica kit. Mine will probably come out at 18 or more

Hey Master Chief, I picked up a GREAT book this week, to have something to read on the bus: "Blind Man's Bluff". I believe you sub guys are certifiable

. Helluva good book. I remember your recommending it a while back. While in NYC this week, some nut-ball "artist" recreated the "Turtle" in fiberglass and wood, and was floating around in the harbor with it; he got arrested when he got inside the security zone around the Q.E.II, which was docked in the harbor.

_____________________________

Club Saito #2, WACO Brotherhood #20. What other trouble can I get into?

Hide Signatures

(in reply to SuperCub Man)

Post #: 3214

RE: WACO YMF - 8/5/2007 4:59 PM

Jim Henley

Posts: 516
Joined: 11/10/2005
Last Login: 5/18/2013
From: Omaha, NE, USA
Status: offline

Ken,
Glad to see you are back, how did the girls do in their competition?

_____________________________

Jim,
WACO Brotherhood #3, AMA 816592, IMAA 41683,

Hide Signatures

(in reply to khodges)

Post #: 3215

RE: WACO YMF - 8/5/2007 8:10 PM

khodges

Posts: 5438
Joined: 7/3/2003
Last Login: 2/18/2011
From: newton, NC, USA
Status: offline

Thanks for asking, Jim. My youngest (9) didn't compete, but did a lot of workshops on technique, etc. My older one (14) placed 2nd overall in her category with her group number (six girls in the group), plus she got a special award for some of her individual dance move techniques. They had a ball. The hotel was just busting (pun intended) with dancers from 6 to 18 years old all week. The computer system that controls the elevators (ten of them) crashed a couple of times from all the kids hitting the same floor buttons when they'd get out of classes, and nobody would get anywhere; the hotel (Marriott Marquis) was an awesome place to stay and did a great job handling everything. They have a rotating restaurant on the roof (48th floor), my wife and I went up the last night and watched this awesome thunderstorm, lots of lightning, move across Manhatten around 11 pm while we ate a late supper after seeing Spamalot.

I can't believe all we managed to see and do in a week; 4 museums, Harbor tour including Statue of Liberty and Ellis Island, two Broadway shows (Chorus Line and Spamalot), I went to a Yankees game at Yankee Stadium (they lost to the White Sox 13-9), I visited Grant's Tomb, and walked Broadway from 125th Street to 34th Street, hobnobbed with Trump on Columbus Circle (he fired me

). Did all the usual tourist stuff, saw Chinatown , ate in Little Italy, visited Ground Zero, it goes on and on.

Glad to be home, though.

< Message edited by khodges -- 8/5/2007 8:14 PM >

_____________________________

Club Saito #2, WACO Brotherhood #20. What other trouble can I get into?

Hide Signatures

(in reply to Jim Henley)

Post #: 3216

RE: WACO YMF - 8/5/2007 11:47 PM

damifino

Posts: 675
Joined: 7/13/2003
Last Login: 8/11/2012
From: Winston Salem, NC, USA
Status: offline

Just a thought on the pinking tape stuff. I just returned from vacation and an up-close inspection of 2 WACO UPF-7's. Since trying to become a 'scale builder', and being a commercial artist of sorts, I've been paying particular attention to 'scale fidelity'. The pinking tape and rib stiching on the full size aircraft were are all but invisible from more than 15 feet away so, IMO, the same details should be very faint from 3 feet away on a 1/5 scale model. Every stringer has pinking tape but it is not noticable in the first picture. Not saying one person's way is better than the other's but at 1/5 scale the details must be subtle or the model can end up looking like a birthday cake.

Khodges- Glad you had a good trip to NYC. Keep us posted on your impressions of the new kit.

Stickbuilder- Thanks for the package! I'll send a 'gift' to you this week.

This pair of WACO's operate as Classic Air Ventures out of North Myrtle Beach, SC during the summer and Miami, FL in the winter. They fly 6 days a week from around 10:00 am til 5:00 pm, weather permitting. A fellow named Phil Ulrich owns and flies both birds. The orange and cream 1940 UPF-7 was re-covered and painted 13 years ago. He based his sightseeing business in Anchorage, Alaska while flying cargo up there before heading south several years ago, ferrying it from Alaska to Miami, Florida! The red and yellow 1941 UPF-7 was recently bought from it's owner of 40 years. I think Phil said he got it in Minnesota and ferried it to South Carolina in the middle of May this year. He alternates flying both planes thru the day, first one and then the other, and says the orange one will be re-painted this fall/winter. Before having the red plane he flew thousands of people in the orange one, many days flying as many as 16 or more hops. He has 5 sightseeing packages ranging from 10 minutes to 1 hour and does some 'surf and dune flying' right on the deck over an uninhabited island at the North Carolina/South Carolina state line. Our condo is very near the Grand Strand Airport and I see them and hear the radials' music nearly every day during our vacations there. Two years ago I took a 45 minute flight in the orange one. I took 50-60 pictures of them this week and will post more as I get them edited.

Attachments

Click for fullsize	Click for fullsize	Click for fullsize	Click for fullsize
Click for fullsize

< Message edited by damifino -- 8/6/2007 5:58 AM >

_____________________________

Everybody knows you can''t make a time machine out of a Tilt-A-Whirl.........-:WACO Brotherhood 25:-

Hide Signatures

(in reply to aminiet)

Post #: 3217

RE: WACO YMF - 8/6/2007 1:48 AM

khodges

Posts: 5438
Joined: 7/3/2003
Last Login: 2/18/2011
From: newton, NC, USA
Status: offline

Jay, where did you go? Looks like aviation was involved, at least partly.

I wanted to visit the Intrepid Museum, but the carrier was towed to Staten Island back in May to refurbish it and improve the museum, and it won't be done until around September.

_____________________________

Club Saito #2, WACO Brotherhood #20. What other trouble can I get into?

Hide Signatures

(in reply to damifino)

Post #: 3218

RE: WACO YMF - 8/6/2007 5:47 AM

ctflyboy

Posts: 898
Joined: 7/8/2002
Last Login: 5/18/2013
From: Willimantic, CT, USA
Status: offline

TO ALL, "THE POWER OF A T-SHIRT"
I attended a VINTAGE FLY IN here in Salem, Ct. today and as usual I was wearing my Waco T-shirt, and as I was getting the WACO out of the car,this older gentleman came up to me and complemented me on my shirt, asked what kit it was my reply was a "PICA"YMF, he is not a brother but he has an red ARF posted here his name is, Hank, from Oceanside, New York.
Through out the course of the day I received many compliments on the T,but I never received so many compliments on my WACO before than I did today. and of all the Vintage aircraft that were there I was the only one with a WACO,
the weather was beautiful and I logged in a couple of flights.
George
WACO Brotherhood # 5

_____________________________

Remember, Man''s 2nd greatest adventure is FLYING, LANDING is his FIRST.

Hide Signatures

(in reply to khodges)

Post #: 3219

RE: WACO YMF - 8/6/2007 6:45 AM

damifino

Posts: 675
Joined: 7/13/2003
Last Login: 8/11/2012
From: Winston Salem, NC, USA
Status: offline

Khodges- We went to Myrtle Beach for the week. Spent a couple of hours with the WACO's over a couple of days. They are only 2 miles from where we stay down there. We visited the Intrepid in '93, very interesting, especially the SR-71 Blackbird.

Here's a link to a short promotional spot with the orange UPF-7

:http://www.tv33mb.com/classicair.html

< Message edited by damifino -- 8/6/2007 6:56 AM >

_____________________________

Everybody knows you can''t make a time machine out of a Tilt-A-Whirl.........-:WACO Brotherhood 25:-

Hide Signatures

(in reply to khodges)

Post #: 3220

RE: WACO YMF - 8/6/2007 5:39 PM

Stickbuilder

Posts: 8422
Joined: 11/20/2005
Last Login: 5/18/2013
From: Wildwood, FL, USA
Status: offline

Jay,

Glad you got the sheeting templates. Looks as though you guys had a great time on the vacation.

I've been working on the model of the Bulldog, and sneaking in a few minutes on the WACO as well. The fuse is ready for the cowl ring, and I'll be cutting it out this week. I'm thinking of turning my own stand-off's from 6061 T-6 and polishing them. I've got the wheel pants and the respective mounts done, as well as having the cuffs laid up for the mains. Since I redid the tailwheel to a scale gear with shock absorbing capabilities, I've about decided that the tailwheel fairing will not work. The tailwheel will travel about 1/2" at full deflection, so that would make the fairing unworkable. Whad do you guys think? Does the model with the shock absorbing tailwheel gear use the fairing or not?

Bill, AMA 4720
WACO Brotherhood #1

_____________________________

Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

Hide Signatures

(in reply to damifino)

Post #: 3221

RE: WACO YMF - 8/6/2007 9:36 PM

pimmnz

Posts: 1892
Joined: 11/9/2005
Last Login: 5/18/2013
From: Auckland, NEW ZEALAND
Status: offline

Bill,
I use a shock absorbing tailwheel on my UPF and I will make a few observations. Landing and takeoff there is precious little time for the tailwheel to be on the ground, static, there is little weight on the wheel either. Getting the model in and out of the car, assembly, disassembly, and storage can wipe the thing off. IMO, if the full size had a fairing, and a shock absorbing tailwheel, then so can/should the model. While the model is doing things a model should the wheel is perfectly safe. At all other times, normal care and attention will preserve the bits.
Evan, W.B.#12.

Hide Signatures

(in reply to Stickbuilder)

Post #: 3222

RE: WACO YMF - 8/6/2007 11:34 PM

skylarkmk1

Posts: 1981
Joined: 9/25/2004
Last Login: 5/18/2013
From: Festus, MO, USA
Status: offline

Bill,

Is your tailwheel moving up and down in a modified front gear mount or is is moving back like the full size? That amount of travel does seem to be a bit much. The full size use rubber donuts instead of a spring, so the travel is a lot less. Suggest replacing the spring, if possible, with one that is a bit stronger/stiffer to lessen the travel or place shims in the spring to do the same. The big fancy hard fairings being seen today on the new Classics and Supers were not present on most YMFs/UMFs back in the 1930s. One plane UMF N 14041 had a wheel pant on the tail wheel (picture #9 on the NWC site F3F5 album) and is also shown with out any fairing (picture #11). The ones that did have a hard fairing, the fairing was about half the length of the ones seen today. Examples are; YMF NC 14607 (picture #59 NWC) and YMF NC 14132 (Ken's model, picture #53 NWC). Most of the Wacos being restored at CCA/HARM have a leather boot to close the tailwheel opening

< Message edited by skylarkmk1 -- 8/6/2007 11:37 PM >

_____________________________

John F Howard (aka skylarkmk1)
AMA 10955, WACO Brotherhood #26, AWC, NWC

Hide Signatures

(in reply to Stickbuilder)

Post #: 3223

RE: WACO YMF - 8/7/2007 2:50 AM

Stickbuilder

Posts: 8422
Joined: 11/20/2005
Last Login: 5/18/2013
From: Wildwood, FL, USA
Status: offline

John,

The tailwheel travels in an arc as does the full scale. In fact, the tail gear is a direct copy of the full scale. The 1/2" amount may be exaggerated a little (not much) I can measure the travel. It does travel back and up in a smooth arc. I could replace the coil spring with rubber O-rings and tame it down a lot. Or as you said, I could shim the assembly and come up with less travel.

Bill, AMA 4720
WACO Brotherhood #1

_____________________________

Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

Hide Signatures

(in reply to skylarkmk1)

Post #: 3224

RE: WACO YMF - 8/7/2007 7:01 AM

khodges

Posts: 5438
Joined: 7/3/2003
Last Login: 2/18/2011
From: newton, NC, USA
Status: offline

quote:

ORIGINAL: damifino

Here's a link to a short promotional spot with the orange UPF-7

:http://www.tv33mb.com/classicair.html

I'm sold, I'm ready, how much, when?

I can still hear the radials from CCA.

John (skylarkmkI)--- heard any more about the DH-4 and Osh Kosh?

_____________________________

Club Saito #2, WACO Brotherhood #20. What other trouble can I get into?

Hide Signatures

(in reply to damifino)

Post #: 3225

Page: << < prev 127 128 [129] 130 131 132 133 134 135 136 next > >>

All Forums >> RC Airplanes >> Golden Age, Vintage & Antique RC >> RE: WACO YMF
Page: << < prev 127 128 [129] 130 131 132 133 134 135 136 next > >>

Jump to:

Google

Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP! : : FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

1.828RCU1