Author Topic: Avro CF-100 Variants  (Read 46 times)

Offline kitnut617

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Avro CF-100 Variants
« on: Yesterday at 11:31:47 PM »
This is a subject I had started to build. I'd built a Mk.4B and thought I would make the other variants. I was lucky when someone on The Airfix Tribute Forum was selling another Mk.4 and a Mk.5 because I was having trouble finding them on the internet.

First off I started to convert the Mk.4 back into a Mk.3, and I found CanMilAir does a couple of sheets for the Mk.3. I found a side view drawing of the different variants, and scaled the drawing to match the Mk.4 kit. To my amazement after I did that, I found all the panel lines matched. Now whether the drawing is highly accurate is not what I'm worried about, I'm just converting the Mk.4 back into the Mk.3 using it. Next was to find out what the Mk.3 wing tips looked like (because they originally didn't have the wing tanks)

Top pic shows the drawing I found on the internet. Second pic is of a drawing I found which shows the Mk.3 wing tips
« Last Edit: Today at 04:06:41 AM by kitnut617 »

Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #1 on: Yesterday at 11:36:14 PM »
The Mk.3 is progressing quite well, there's a lot of cutting and shortening, but not everything is shortened the same amount, the fuselage has to shortened the most, but the engine nacelles not nearly the same amount. Then the intakes have to be reprofiled.

In this pic you can see the difference between the Mk.3 engine pod and the Mk.4 one. The fuselage gets reduced in length by the amount of the RP bay which is behind the gun bay. But you still have to move the canopy running rail differently to what is moved on the lower side.
« Last Edit: Today at 04:07:26 AM by kitnut617 »

Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #2 on: Yesterday at 11:51:47 PM »
I started the Mk.5 build at the same time with the plan to build OOB. The plan quickly collapsed ----

While I was building my Twin Fury I was looking for P-51H type wings and as I was building the CF-100 Mk.3 around the same time I notice the outline of the Mk.3 wing looked very familiar. It has the same outline as the P-51H, actually it's more a scaled up F-82 outer wing.

So while laying the P-51H and F-82 wings over the Mk.4 wing, one of them sort of ended up near the wing tip ---- and then I thought "whoa!" that would work for an extended wing. I had an abandoned Beechnut P-51H in the spares box (it's undersized for 1/72, more like 1/75) so after thinning the wings from it to get it down to the CF-100 thickness, I found that the outline kept getting smaller as I thinned the chord thickness. Which worked out for what I wanted to do, because it meant I could move the P-51H wing further out towards the wing tip, making the wing even more extended.

The next part was what to use for a recce nose, and couldn't find what I thought I had in the spares box. But there sitting on my work bench shelf was this recce pannier from a TSR2 conversion. Then an idea started to seed itself into my mind.

To get the pannier to fit under the fuselage meant I had to move the main gear bays further out, which would be very difficult to do because the undercarriage doesn't fit in the wing, they are all under the engine pods and fuselage. So I thought I would just move the engine pods further out, but then had another thought, I'll re-engine it with high bypass turbofans at the same time.

The Mk.5 is a good choice to do an high altitude recce bird, the tail plane is quite a bit wider than the tail planes on the other versions.

Then after I had made my fuselage changes --- I found the recce nose I knew I had. It's from an RF-101C which I've converted back into an F-101A. So I thought 'what the heck! I'll stick that on too'  >:D

So these pics show where I'm at with this one.
« Last Edit: Today at 12:08:06 AM by kitnut617 »

Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #3 on: Yesterday at 11:52:44 PM »
This is a pic of the three together

Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #4 on: Today at 12:15:47 AM »
I'm not going to put wing tip tanks on the recce bird, I'll put them on pylons which are closer to the fuselage. Like this Mk.5D below. Only I'll have two pylons under each wing. I've found some photos of the CF-100 that was trialed for ground attack, it had four pylons for carrying bombs. The drop tanks will go on the inner pylons, and the outer ones will carry jamming pods like in the photo here. You can see the type I'm going to use in the bottom pic in reply #3
« Last Edit: Today at 12:22:14 AM by kitnut617 »

Offline tankmodeler

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Re: Avro CF-100 Variants
« Reply #5 on: Today at 01:57:24 AM »
I've found some photos of the CF-100 that was trialed for ground attack,
I like the idea of a more dedicated ground attack CF-100.
Stronger wings with the capability of taking TERs with 3x 1000 lb Mk 83 Snakeye bombs or, late in life, a laser designator pod on one pylon and GBUs  on the outer pylons.

Replace the outdated MX radar and guidance system with a smaller target radar, an IRST ball and maybe, later a LLTV or laser designator under the nose. Replace the MGs in the under-fuselage pod with a semi-recessed M-61 Vulcan or a couple of 20mm or 30mm cannon.

Retain the tip tanks or substitute them for Sidewinders for self defence.

That's not a horrible medium strike aircraft for the later 50s through mid 70s period.

Quote
and the outer ones will carry jamming pods like in the photo here.
Technically, these aren't "jamming" pods. they are chaff pods that dispense packets of precut chaff to blind intercept radars.

A jamming pod would have at least a couple of dielectric panels for the radiating and receiving antennas and, if not using airframe power (if it was a powerful pod) probably a small turbine in front to provide power through a RAM generator.

For photo recce, a chaff pod is a perfectly good fit, though.

Actually, this gives me the alternate idea of a Clunk Wild Weasel with a couple of high powered jamming and receiving pods and a couple of Shrikes/HARMs under the wings. That'd be kinda cool.

Paul

Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #6 on: Today at 02:18:53 AM »
For some reason, the trials for the ground attack showed that the CF-100 wasn't up to it.

The pylons though look like early AD-1 pylons
« Last Edit: Today at 02:21:44 AM by kitnut617 »

Offline pigflyer

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Re: Avro CF-100 Variants
« Reply #7 on: Today at 03:24:23 AM »
Cool looking work. And of course as a what if, you can't get it wrong.  Great idea.
If I don't plan it, it can't go wrong!

If it's great, I did it. If it's naff, I found it.

Online The Big Gimper

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Re: Avro CF-100 Variants
« Reply #8 on: Today at 03:47:38 AM »
These are awesome Robert. At some I will provide an update on my Mk.6 build.
Work in progress ::

I am giving up listing them. They all end up on the shelf of procrastination anyways.

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Offline kitnut617

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Re: Avro CF-100 Variants
« Reply #9 on: Today at 04:13:35 AM »
Cheers guys ---

The nose on the Mk.3 comes from an F-15  -----   slightly re-profiled   ;)