CH-47 Chinook

[kitnut617]

I imagine it could look a little like this, only put the Chinook fuselage back in between the sponsons instead of the Cormorants

[Silver Fox]

Why not put a retractable dustbin radar in place of the floor hatch? You can then fit the MAD bird at one end of a sponson, dipping sonar in the other sponson. You haul the sonar up to move, so no real issue there.

You probably want a weather radar in the nose... I'm not sure what else would be appropriate for a 60's era machine.

[Steel Penguin]

definatly 2 diffent sets of shots, in the 1st the crewman on our left climbs up out of the way of the rigid raider, in the second he dosnt.

[Taiidantomcat]

 

[Thorvic]

Split topic so as not to hijack Roughnecks Escoert Carrier thread with disccuion about the possibilities and capabilities of the projected ASW version of the Chinook from the early 60s.

Renamed topic back to ASW Chinook from CH-47 Chinnok that Jeff decided to retitle it to so that thread stays on topic about the ASW version so as to distinguish from the exsisting trash hauler.

Geoff

[PR19_Kit]

Geoff,

You're too sensible by half, what are you doing in here though?  

I like 'Silver Fox's' ideas about the placement of the systems, I can see that working well. Of course if you started with an HC3 it already has the weather radar in the nose and LOTS of room in the monster sponsons for all the extra bits. Apparently Revell do, or did an HC3 but I've never seen one in the UK, anyone else?

I already have an HC2 out of The Loft, and a Sea King as well, as a bits provider, but I'd rather have an HC3 as a starter.

[Weaver]

How much room is really spare in the sponsons though? I thought they were mostly full of fuel....

[PR19_Kit]

On real HC3s they are, yes, but this is the ASW4............ 

[Weaver]

So you're going to move the fuel out of the sponsons and into the fuselage and put the ASW gear in the sponsons? Why not just put the ASW gear in the fuselage? Even if you want a retractable dustbin radome, there's plenty of room for that and a dipping sonar hatch on the underside, and you can trail the MAD bird from the tail ramp.

Bit more research:

1. The exisiting side door is routinely fitted with a winch, so no need for a bigger door/shorter sponson.

2. My side-of-the-front-pylon radar aerials won't work: they block big maintenance hatches on the sides and their view to the rear is restricted by the engines: no point having the penalty of twin aerials if you don't get near 360deg coverage.

3. Some Chinooks have a weather radar in an extended nose, which looks big enough to house a late Sea King or Lynx radar with 90deg scan as standard or 180deg with a modest extension. This would make the airframe longer, however.

4. As far as I can tell, the fairing on the back of the rear rotor plyon is empty. It occurs to me that it could be replaced with a drum-shaped radome capable of housing at least the early Sea King radar with only a modest change of shape, with 270 deg scan. Combining this with the nose radar seems to me the best solution.

[kitnut617]

So why not a sort of Nimrod AEW arrangement     if you're going for a dedicated AEW platform, the rear loading ramp can be dumped too.

[PR19_Kit]

So you're going to move the fuel out of the sponsons and into the fuselage and put the ASW gear in the sponsons? Why not just put the ASW gear in the fuselage? Even if you want a retractable dustbin radome, there's plenty of room for that and a dipping sonar hatch on the underside, and you can trail the MAD bird from the tail ramp.

Bit more research:

1. The exisiting side door is routinely fitted with a winch, so no need for a bigger door/shorter sponson.

2. My side-of-the-front-pylon radar aerials won't work: they block big maintenance hatches on the sides and their view to the rear is restricted by the engines: no point having the penalty of twin aerials if you don't get near 360deg coverage.

3. Some Chinooks have a weather radar in an extended nose, which looks big enough to house a late Sea King or Lynx radar with 90deg scan as standard or 180deg with a modest extension. This would make the airframe longer, however.

4. As far as I can tell, the fairing on the back of the rear rotor plyon is empty. It occurs to me that it could be replaced with a drum-shaped radome capable of housing at least the early Sea King radar with only a modest change of shape, with 270 deg scan. Combining this with the nose radar seems to me the best solution.

No, only SOME of the fuel. The sonar winch and the MAD winch wouldn't take that much room out of the rear of the sponsons.

The HC3 has that extended nose with the weather radar already, which is why I suggested it. See attached. (The baby is deliberately blanked out, to apease the widly OTT PC people in our current Governent......... <sigh>)

The side door of a Wokka is quite a lot narrower than the sliding door on a Sea King, and it would be difficult to haul a victim aboard with the winchman as well, if they were on a stretcher it would be impossible.

The 'Twin radar' system, fore and aft, like the Nimrod AEW3, sounds a good move, but Marconi are NOT getting the job! 

[Weaver]

With you on the HC.3 now Kit. Italieri do an MH-47E with the same nose that's available in the UK: http://www.hannants.co.uk/search/?FULL=IT1218

I found an account, but not a clear picture, of a stretcher case being winched aboard a Chinook during a mountain rescue training mission, but it wasn't clear if they were winched in through the side door or an enlarged floor hatch. I've also got a feeling that I've seen a rescue winch being used from the rear ramp of a big helo, though not neccessarily a Chook.

[PR19_Kit]

With you on the HC.3 now Kit. Italieri do an MH-47E with the same nose that's available in the UK: http://www.hannants.co.uk/search/?FULL=IT1218

Now that's REALLY handy, thanks. The MH-47E is almost the same shape as the HC3, complete with uber large sponsons and the extra bulges etc. I feel some plastic cutting coming on...........again! 

[Silver Fox]

Stick the retractable AAR boom onto the back as a retractable MAD stinger.

Not sure about the MH-47 kit... but some kits give you optional parts for extended or retracted, you could still retain the AAR probe if you do get both.

[Thorvic]

Don't forget its an ASW Chinook the Cabin & Doors would be configured for the crew entry only as the Cabin would be fitted for Radar & Sonar equipment and operators. The Radar itself would be probably fitted under the fuselage in a similar manner to the Spanish Seakings. Torpedoes, Depth charges and sonar bouys would likely be carried in eith a weapons bay or attached to the enlarged sponsons.

SAR & Utility role aboard RN ships would probably remain with the Wessex although a Navalised CH-47 would probably take over the role as the Seakings actually did.

The adoption of the Chinook as the RNs large Naval Helo instead of the Seaking does raise another interesting aspect, as most post 60's designs have had Sea King compatability built into them. Would designs such as the Type 22 (II, III), Type 23, Type 45, Ocean and RFA's now have larger flight decks and hangers to allow for navalised Chinook to be operated and hangered (The newer ships are designed to allow a Chinook to use the flight deck but not hangered !!!.

G