General Jake

more pics

ThunderBoat42

My Feedback: (1)

Unfortunately this one is about to be discontinued. Parts availability is dropping off and no more when current stock is gone. Got this direct from HH due to no cockpit in kit and none available - sent it back

Futterama

That is a shame, I haven't even started building mine yet

WI53072

I've heard they maybe getting rid of the Corsair, Spitfire and Decathlon in the coming months. Too bad if this happens. Looks like we're all going to have to build which I suppose is better anyway.

helihobby

It's a good job I bought two airframe kits because I new this would happen with HH.

marksp

My Feedback: (9)

Same, same.

Best to be your own source for parts :-)

ThunderBoat42

My Feedback: (1)

The guy in dealer support told me to watch the parts list of the plane. If the parts start being discontinued its a sign the plane will be when stock runs out. Makes sense since it's happened to me twice now. Probably going with the TopRC composite Tower and Gator RC carry. or just put together the TF I already have.

WI53072

H9 could of done better with the quality control on this one. I continue on with mine and hope to fly it this summer.

If this plane is discontinued along with the Spitfire it will be too bad.

WI53072

when mounting the OS 60, is the mounting bolt pattern the same as the included drill guide?

thanks

CRG

My Feedback: (3)

Not true at all. Of the 20 replacement items for the Mustang, 18 are in stock. The cockpit kit is a different issue and was discontinued quite some time ago.

Craig
Horizon Hobby

WI53072

Anybody have a good solution to the overly tight wing tube fitment issue? Sanding? Replace with Carbon Fiber? My tubes are very tight!

Thanks in advance!

Paul

WI53072

when mounting the OS 60, is the mounting bolt pattern the same as the included drill guide?

thanks


Yes, they are

General Jake

Paul, great question....Mine are so tight I'm afraid the wing will break as I try to remove them.
Chris

marksp

My Feedback: (9)

I sanded & polished wing tubes and sanded and polished the center wing section 'glass tube inside surface as well. Helped a little, but unfortunately, not enough as I collapsed the balsa sheeting on the top of wing trying to get it off.

This kit has literally been 1 step forward, 3 steps back all the way along. Hope it eventually gets in the air!

If anyone has suggestions...I'd be super grateful!

Cheers

WI53072

Guys,

happy I'm not the only person with the wing tube fit issue. Thinking of taking them to a machine shop and get them shaved down a couple .001"

Futterama

The wing tubes are poor quality, they are not perfectly circular:

WI53072

I wonder if you can get carbon fiber replacements? Seems a 32mm tube would work. Thoughts on this?

Thanks

WI53072

Found some carbon fiber tubes that may work.

https://compositeenvisions.com/roll-wrapped-carbon-fiber-tube-twill-weave-gloss-finish-1-25-od-48-long-1620.html?zenid=2dd68fe76b8200a9f3c0e0742427d2da

Od tolerance + or - .1mm. It's nominal OD is 32mm.

Thoughts?

Len Todd

I Just sanded my wing tubes down and sanded the inside of the wing with sandpaper on a rod. Then I lubed the tubes with silicone.

This was the worst ARF I ever had to deal with and have dealt with since. By the time I got done with it, I just left it sit in the back of the shop. May never even fly it! Put way to much thought, time and work into it to risk flying it. Although, is getting closer to the door.

BarracudaHockey

My Feedback: (11)

Fly it, you will think any aggravation is worth it, one of the best flying warbirds I've ever had my hands on

WI53072

Barracuda you keep saying this, I'm close. It has been a frustrating process.

I still have to address the wing tube I'll fit before I can even see if the bolt tabs can be checked for proper alignment!

Paul

marksp

My Feedback: (9)

This is almost my exact experience! Except I tried graphite dry lube which didn't work so well. I ultimately damaged the wing trying to get it off so it has sat in my RC trailer for over a year...only to come out to make room when needed.

If someone sorts out a wing tube solution that works, perhaps it'll fly someday???

Cheers

sjhanc

My Feedback: (3)

One of the two H9 Mustangs I have built had small drops of hardened resin inside the fiberglass tube. The aluminum wing tube would jam with several inches left to go. I glued a 1 inch grindstone into a long brass tube and used it in a slow turning electric drill motor to sand the glue drops off inside the tube. It took a couple of hours but I was eventually able to get the wing panels together. Very tight but they can be separated using hardwood door wedge shims to pry apart for maintenance. Don't try to grip the wing sheeting to pull them apart, you WILL crush the sheeting. You have to make a gap in the tip root ribs with the shims, big enough to get fingers in there. Then have some one hold the center panel by the leading and trailing edges at the center while you put the tip in your armpit and ease the tip off by pulling its root rib with your fingers. If the fiber glass tabs don't line up for the retaining screws, wiggle them. This will break the glue joints loose so they can be reinstalled correctly. None of the fiberglass parts in the plane have been properly sanded rough for glue adhesion. Engine vibration will shake them loose. Check all the control hinges for looseness after each flight.

The first plane's wing needed surgery to move the small tube's fiber glass tube in the wing center panel, actually easy to do if you have any prior experience with building wings that use tubes.

Once you get past the quality issues it is a great flying Mustang, you will forget about the problems.

dmyers0403

My Feedback: (48)

Would it be possible to glue a slightly smaller wing tube of better quality & fit inside the existing tube? Would this avoid cutting into wing for modifications?

sjhanc

My Feedback: (3)

I suppose that would be possible, but the surgery is easy to do, it took me only 2-3 hours to accomplish depending on glue drying time. The wing sheeting cutouts I made included the film covering so I reinstalled the cutouts and sealed the cuts with packaging tape. I did all the work on the wing bottom so it is barely visible when the wing is inverted on a stand. I posted a description and pictures earlier in this thread. Basically, you cut the inner tube away from the supporting rib structure so that it floats free. Assemble the tip to the center panel, the loose tube will then be where it needs to be. I cut air-ply into 'U' shapes to fit around the loose tube at the tip root rib, then work into the other two ribs to finish the gluing. Packaging tape applied to the tip root rib will prevent glue leaks from permanently gluing the panels together. I have seen 3 wing sets with this issue, all of them had the inboard end of the center panel's rear fiber glass tube 1/4 inch off of the correct position for proper alignment. I could get the wing panel about 4 inches from fully installed, that's where they jam and are really difficult to get back apart for repair. After cutting the tube free, they slip together as they should have from the factory.

The tip tube with the resin drops inside only needed the resin sanded out. Check the aluminum tube ends for distortion, (out of round caused by bad cutting) if you have distortion, a bench grinder can remove the distorted part by reducing the tube diameter for about 1 inch in. My repair went for almost 50 flights until a flap servo failure cause it to go down through trees. The repaired wing tube withstood the crash. The air frame was repairable but the cosmetic damage would have been too expensive ($$$PARTS$$$), so I retired it to use for spare parts for the second plane. When I retired my old TF 'B' model for fuse structural cracks (over 300 flights), I bought a wing kit and fiber glass fuse kit for the Jerry Bates Mustang instead of sending more money to Horizon for another defective ARF. Maybe they will get the idea that selling bad stuff costs them further future sales. I doubt it.