Author Topic: AV-22 and E-22 Tilt Rotors  (Read 2927 times)

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #60 on: June 27, 2018, 10:20:42 PM »
And Akotomba does/did one too ---

Offline elmayerle

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Re: AV-22 and E-22 Tilt Rotors
« Reply #61 on: June 28, 2018, 03:05:17 AM »
There is also a 1/84 XV-15 kit that Bell once offered in its store.  I picked one up from a retiree in Flight Test and they occasionally show up on eBay.

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #62 on: July 16, 2018, 03:00:51 AM »
After a lot of thought, I've come up with something that would work for making the flaps deploy. Now I need to do a practice run on it and see if it does.

And I also did a practice run on how my weapons bay doors will be made. This was heat formed to the curve I need and then holes drilled into the edge of the inner side of the door. I took the diameter of the tubes from one of the RP pods and I can get ten holes in the edge. (top pic)

My prop rotor is also progressing, these are now glued to the spinner. I had to revise how I was going to attach the blades, the system where I had small stubs installed, wasn't very accurate so I took the stubs out and filled the holes in. I've got the other three to glue on yet, but they're in the process of being made. Then it will be onto the other prop.

« Last Edit: July 16, 2018, 05:45:56 PM by kitnut617 »

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #63 on: July 16, 2018, 03:06:03 AM »
I've also installed a refueling probe in the wing near the wing root. I put it there because the nose of the aircraft is getting a bit crowded. I decided to reduce the prop-rotor diameter a bit more for clearance, so now the diameter is 30'-0" instead of the V-22's diameter of 38'-0".

Top two pics show how much clearance there is, bottom two pics show that the probe in it's extended position and retracted

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #64 on: July 16, 2018, 03:07:11 AM »
This is a top view of the arrangement

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #65 on: July 16, 2018, 03:11:31 AM »
The BERP blade tips take a bit of time to shape correctly, I used 2mm styrene blanks and then sanded the chord to suit the blade chord. I also had to re-twist the blades after they were shortened. The BERP ends actually replace quite a bit of the blade area I removed from the originals but I'm still going with six blade prop-rotors.

I also had to revise the nacelle hinge, with the extra blades and larger nacelle, there wasn't enough friction to keep the nacelles just dropping into the horizontal. And I want to pose it with the nacelles in various positions, which is why I'm going to make the flaps deployable.

The other thing I had to revise was how I had the sponson wing stubs, I had to reposition them to where they attach to the sponson. This was because of interference with the weapons bay doors and because I had made the first ones too short in an attempt to get the outer doors to be able to have a line of fire when the prop-rotor was in the forward flight position. But then I didn't have enough room for the inner doors to open ---  :-X  But even now the outer door line-of-fire will only work if the nacelles are rotated a couple of degrees, just going to have to live with that ---
« Last Edit: July 16, 2018, 03:22:46 AM by kitnut617 »

Offline elmayerle

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Re: AV-22 and E-22 Tilt Rotors
« Reply #66 on: July 16, 2018, 03:54:36 AM »
I think I'd have made the refueling probe fixed off the top of the wing, somewhat like the first generation Harrier had it off the inlet.  That would take care of clearance problems as well as make the mate-up with the drogue easier to watch.

Overall, it's looking good.

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #67 on: July 16, 2018, 04:08:20 AM »
Thanks Evan --- I didn't take a photo of it in the top view when the probe is extended (next time), the tip of it is about where the pilot's instrument panel is.  I did measure a probe on a Tornado when it's deployed and I positioned this one at about the same distance from the fuselage.

The project is not progressing as quick as I would like it to though, work has been interrupting things a bit. The summer construction season gets busy at the airport up here in Alberta.
« Last Edit: July 16, 2018, 04:11:35 AM by kitnut617 »

Offline Old Wombat

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Re: AV-22 and E-22 Tilt Rotors
« Reply #68 on: July 16, 2018, 10:27:17 AM »
Looks like a lot of finicky, finely detailed work completed in a very short time to me.

So, I'd say you're doing well but, yes, fine detail work does slow one down, doesn't it. :smiley: :smiley:
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Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #69 on: July 17, 2018, 07:30:33 PM »
Cheers Guy ---

Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #70 on: July 18, 2018, 06:14:07 AM »
After some more chatting with Evan about where the terrain following radar should go and me thinking about what he said --- I've done a small design change. I didn't want to attach the radome that comes in the V-22 kit to the AV-22 nose because it seems to me an after-thought and as Evan said, it would look a bit ugly. So the design now has the radar built into the airframe. Only it's a bigger radar, bigger and better  >:D

I found I had a nose off another kit which has got change with another nose, when I made a trial fit with it to the nose of the AV-22, I couldn't take my eyes off it. I kept going back to it and looking at it and then just loved it. It gave the front end something that in my mind had been missing.  It's now glued on after some refinements.

Here's what I did, see if you think the same as I do about it. This is the trial fit-up, I'll take more pics once the glue has dried and I've done a bit of PSR on it.
« Last Edit: July 18, 2018, 06:17:01 AM by kitnut617 »

Offline kerick

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Re: AV-22 and E-22 Tilt Rotors
« Reply #71 on: July 18, 2018, 08:25:53 AM »
Looks like a natural fit

Offline Jeffry Fontaine

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Re: AV-22 and E-22 Tilt Rotors
« Reply #72 on: July 18, 2018, 09:57:30 AM »
@ Robert - based on what I can see of your new radome/nose it looks like it started life on a late model Mosquito NF and you have turned it upside down.  Am I close or was that a RWAG?  :)
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Offline kitnut617

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Re: AV-22 and E-22 Tilt Rotors
« Reply #73 on: July 18, 2018, 08:31:45 PM »
Thanks guys --

Jeff, I was going to use it on a Mosquito, but it didn't come from one. It actually comes off a CF-100  --- a Mk.V to be exact  ;)  That kit is getting converted into a recce bird.

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Re: AV-22 and E-22 Tilt Rotors
« Reply #74 on: July 18, 2018, 09:07:02 PM »
Thanks guys --

Jeff, I was going to use it on a Mosquito, but it didn't come from one. It actually comes off a CF-100  --- a Mk.V to be exact  ;)  That kit is getting converted into a recce bird.

Oh the horror Robert! What is the source of your recce snoz?
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