ravill

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My stand is done!

Robart sent the new tires yesterday and I changed them over.

The brakes are a little engineering marvel! Real, little disc brakes!

AKB

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ravill

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Mibo jets USA recommended that I change to the harder Robart tires as the dubro tires have a tendency to roll off the rim. There is a good pic of them doing that on Ali’s blue A-10 in the gen 5 thread.

These Robart tires are still foam, but harder foam and they were kinda hard to get onto the rims, but not too hard that 2 small flat head screw drivers didn’t help.

There are are only one set of Robart 6” tires. Let me see if I can post a link.

Hold please:

ravill

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Here:

https://robart.com/collections/wheel...luminum-wheels

Edgar Perez

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AKB

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Thanks Rav

ravill

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You’re welcome AKB!

Edgar, I’ll post some pics of the wings on the stand too. I can roll it and can get it on and off my truck by myself.

This jet really is massive! I couldn’t imagine the 1/4 scale.

ravill

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Here is the jet in the stand.

ravill

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Onto some building of the jet!

The wing “rootlets” need to be glued on. I used 3 layers of painters tape between the root of the wing and the “rootlets” for a gap.

ravill

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I ran into a problem with the “rootlets”.

The Fowler flap mechanism has the top of the flap move up 2-3 mm above the top of the wing towards the end of travel.

This is caused the flap to rub on the rootlet.

I had to sand quite a bit of material off the bottom of the rootlet so that the flap would not rub on the rootlet.

ravill

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Also, all the hinged surfaces have been put on. The first problem I see is that my full elevator travel is 30 mm.

Frankly, that seems a bit low.

Which leads to my next question: what are the throws and CG for this bad boy?

I’ve been able to get some info (ail, flap and rudder) from some of Oli’s posts, but it would be nice to have all those values somewhere so it’s easy for everyone to see.

mick15

FYI I ball raced my elevators and ailerons, although my ailerons are modified to accommodate decelerons. I also incorporated some taileron movement thinking it would reduce some of the tail plane forces. My aileron deflections are two inches up and one inch down. My CG is just rear of the FRONT of the wing tube, this can safely be moved rearward up to half an inch if a three axis gyro is incorporated. As can be seen from my videos the model has no tendency to balloon on the glide path. The model is powered by two JC Cheetehs (160) which I am very happy with.

m

ravill

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Mick, what is “ball race” mean?

And thank you for the info!

Bogo sent me some info regarding CG and throws. I’ll post them in a bit.

Thank you Bogo!

ravill

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My next step was to make the wing tips removable.

mick15

Image of ball raced control surface

I made my wingtips removable to gain access to the lights wiring and the working pito tube.

Smokeyr67

Edgar Perez

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I have though about that, but don't seem to be able to locate one locally. Will continue to look as that will be the perfect approach for me.

Edgar Perez

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Hi,
Anyone know where to get nacelle covers like those in the image?
Thanks

Edgar Perez

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I really like the scheme Stan did a few years ago. I have not found much info on it. Anyone know if this is a "fantasy" scheme or was/is there a full scale A-10 that used it?

ravill

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I am also interested in those engine covers as well.

jimibar

This scheme is a fantasy one that Stan has created. I think he was using the A10 from Ali as a reference when he did his artic camo.
This is by far my best scheme ever for an A10, maybe this is why I choosed it for my A10... And this picture of Stan's A10 is the reason why I felt in love with the hog !

ravill

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I see I still have to post throws and CG!

Well, I got my pave penny pod on. I will put a light in it.

ravill

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Oh, and the ventral strikes/fins were Hysoled on. I used this icing stuff recommended by viper on his f-105 thread.

JackD

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Edgar Perez

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I have seen people put a circle made of compact disk to simulate the camera...