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Classic Airframes DH Sea Hornet NF.21


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I have added the instrument panel combing and Gun-sight, and re-shaped the front of the cockpit cut-out slightly to accept the windscreen vac-form better.

Combing made from plastic card.

Gun-sight taken from an unbuilt Airfix 1/48 Spitfire Mk24.

37102539050_5d538d81c0.jpg. by hornet project

Here are the parts dry-fitted for clarity.

37311604886_41ae511cc4_b.jpg. by hornet project

Note the vertical line scribed onto the vertical face of the wing root. This is the front spar datum, and all dimensions fore and aft should be made from this line.

37311604476_7a85907748_b.jpg. by hornet project

Combing and Gun-site fitted and painted.

36688842273_110c2df41e_b.jpg. by hornet project

37311604216_c4657acfe8_b.jpg. by hornet project

36688841843_c491dd4258_b.jpg. by hornet project

37311603816_3eb1095cd4_z.jpg. by hornet project

Edited by David A Collins
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This is the de-icer tank added to the nose armour plate. This has been scratch built from sprue.

37311603816_3eb1095cd4_z.jpg. by hornet project

Also for the fuselage, here is a guide as to which surface lines and detail to keep, and which to fill and sand smooth (highlighted in yellow ovals). Classic Airframes have added four vertical fuselage bands that are not actually there on the real aircraft. It is a misinterpretation of hidden detail on an original drawing. The real fuselage is very smooth as it is fabric covered wood. The only visible detail is the diagonal intersection either side of the nose denoting the side armour plate. There is also a round canopy release button just to the right of the windscreen, and the raised detail canopy rail. While under the belly you should keep the main access door panel lines.

36688846933_72b5a87df5_b.jpg2 by hornet project

Fill the groove rear of the tail wheel cut out. There is no evidence of it on the original tail cone drawings. A dark area can be seen here on some old photo's but this is spray thrown up during landing/take off.

37102545950_180ab5f3bc_b.jpg3 by hornet project

Edited by David A Collins
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DSCN8924.jpg

Note the vertical line scribed onto the vertical face of the wing root. This is the front spar datum, and all dimensions fore and aft should be made from this line.

Very useful and great work David.

Could you give a measurement from leading edge for this vertical line, given it's importance for other dimensions.

thank you

Troy

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Hi Troy,
The root chord on the CA kit measures 77mm. The front spar datum line should be marked 21mm back from the leading edge, to put it in the best nominal position for this kit.

Please note that any dimensions I quote in this thread are relevant to the Classic Airframes kit only. The other two kits still available in this scale (Trumpeter and Dynavector) have different relative dimensions so any taken from this build won't necessarily be correct for modifying them.

I will post a few images showing some key dimensions soon.

Thank you all for following this.

Edited by David A Collins
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This is the AN/APS-4/ASH (AI Mk. XV) radar installation for the Sea Hornet Night Fighter.

37328709812_d95e50b78d_b.jpgIMAG1420 by hornet project

I have created this assembly by modifying the existing resin radar part. I filed it round, but you may wish to turn a new part on a lathe, or find a suitable diameter part from another kit.

BEWARE! Do not sand or file these resin parts without using an appropriate filter mask over your nose and mouth. The dust should not be inhaled.

37328706692_13fbea2b92_b.jpgseahornetpreviewse_resin by hornet project

Second step was to make its support frame. The two grey arched parts were cut from an unused bomb casing. The struts are unused braces from other kits. I have also filed two grooves around the radar housing itself to represent the joints between the front and rear parts.

23507173198_611d4b2beb_b.jpgDSCN9073_1 by hornet project

Here are a couple of views showing the finished installation.

23507171588_756c5da591_b.jpg. by hornet project

36649506344_c20c426199_b.jpg. by hornet project

23507172498_6e2ab52748_b.jpg. by hornet project

 

Edited by David A Collins
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I have made a few more parts for the Radar frame and rear observers position.

First the radar support structure is now complete. There is just a wiring harness to add from the middle upper part of the radar, to the left hand middle connector on the front bulkhead. For this I will use some thin gauge wire.

36649522214_10cf058cc4_b.jpg. by hornet project

Next, are some finishing details for the rear cockpit. In the following image I have left them unpainted for clarity. The head pad is fitted. The folded seat pan is on the far right, next to its image in the manual.

36688849803_ccf5e22b2c_b.jpg. by hornet project

The observers seat, has been assembled in its folded position. This was made from a spare seat base, and some smaller parts from the scrap box. I have also added the observers head pad, located on the front of the blister canopy opening. This was sanded from a small piece of sprue.

37102549960_009c263716_b.jpg. by hornet project

 

Edited by David A Collins
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Here are a few extra details to add to the fuselage.

I have pencilled-in some additional surface detail that should be added:

Canopy release button.

Domed end of the fuselage tie-rods located at bulkhead 2 on both sides of the fuselage.

Port fuel filler caps.

Forward aerial attachment point.

Upper Nav. light.

Reinforcement blocks ahead of the observers canopy.

37358376801_8a6dd84fa0_b.jpgb by hornet project

37311616026_0b167350ec_b.jpgd by hornet project

37311620226_e95b1986d3_b.jpga by hornet project

I have added a radar scope to the rear of the bubble canopy cut-out. This was made from the hollow tip of a 1/72 red top missile!

The reinforcement blocks are shown prior to sanding. They appear on all of the last Sea Hornets in service.

37358374911_677c7cbec8_b.jpgc_1 by hornet project

Also added at this stage is the arrestor hook and the position for the three downward identification lamps.

 

Edited by David A Collins
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Thanks for following.

This is the belly door. If building an NF.21 with the door open, you will need to fill the large diameter hole in the separate kit part and add some detail to the inside. I have filled the hole with a piece of white plastic card, and marked the centre of the smaller aperture that should be there. On this mark, there is a drift sight mounted to the inside of the door, and it is the lens of this that can be seen on the outside (not a camera or window). Just below the rectangular drift sight can be see the locking handle. I have made both of these parts from sprue off-cuts.

36688848863_e416c4a51d_z.jpg. by hornet project

36688848673_1208ae802f_z.jpg. by hornet project

Edited by David A Collins
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Just a small update today.

From a second Classic Airframes Sea Hornet kit that I intend making into an F20 or PR22, I have been able to get this spare second NF21 resin nose cone. Because I'm displaying this model with some fairings removed, to I'd like to show these parts on the ground next to it. For this radar shroud, if you run an 8.5mm drill down the exact centre of the part, you end up with a "hollow" fairing. Alternatively, if you can vac-form this shape then make a copy. This will be painted aluminium on its inner surfaces and the beige-green and sea grey on the outside.

Also shown is the belly door, now painted in the dark grey Humbrol Matt 32, with the drift sight chart painted white and the door handle painted yellow.

In this view can also be seen the small green block just to the right of the aluminium de-icer fluid tank. This is the electrical junction box for the radar wiring.

36688848533_dc27445a2e_b.jpg. by hornet project

Can anyone point me in the direction of a supplier for 1/48 scale aircraft ground equipment used by the Fleet Air Arm in the 50's, or photo's I could scratch build from? I'm looking for a towing arm for the tail wheel, and trestles upon which ground crew sat or stood to reach higher parts of aircraft to service.

Edited by David A Collins
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Can anyone point me in the direction of a supplier for 1/48 scale aircraft ground equipment used by the Fleet Air Arm in the 50's, or photo's I could scratch build from? I'm looking for a towing arm for the tail wheel, and trestles upon which ground crew sat or stood to reach higher parts of aircraft to service.

Some of the Flightpath range maybe of use?

https://www.djparkins.com/home.php?cat=277

A couple of other sets that might be of use?

ICM do a set of RAF ground crew which has some ladders and tables etc.

http://modelingmadness.com/scott/misc/figures/icm/48081p.htm

Also as part of this set are some very handy pieces of ground support gear. A work table, oxygen or acetylene bottles, a tail stand, jerry can and ladder.

Tamiya do a German tank crew maintenance set which has some useful looking parts as well

http://www.tamiya.com/english/products/32547field_maintenance/index.htm

HTH

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Here is the finished and painted nose fairing.

Detail that required adding to the kit part were the two small air scoops, either side of the radar.

Noteworthy, is the aluminium ring at the front. On new aircraft this was painted the same colour as the rest of the airframe, but with use over time and wear due to the adding and removal of the aperture cover when the radar was not fitted, this paint would become worn away.

Also, visible in the image below is the canopy release button on the starboard side of the cockpit. The centre button of which would be yellow.

36688847813_50785cb4d4_b.jpgNose fairing by hornet project

Edited by David A Collins
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I still have the Dynavector F3 stashed away, David. I'm sure there's a lot that I can learn here that will be helpful when I start building it.

Hi Aidy,

I intend doing a thread for the RAF versions as well in the future: F1, F3, and F4 as there are differences. I have an idea this will include the aircraft being re-armed, so the gun acces doors will be open.

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So to recap on the NF21.

The fuselage is pretty much complete now and ready for the wings. The nav/id lamps and transparencies will be added after painting.

The wings will need the following mods:

- Fill/sand selected surface lines on the top surface.

- Cutting out the wing lower skin to make the undercarriage bay correctly.

- Add detailed side walls to this enlarged u/c bay.

- Investigate if engine fire wall requires changes or not?

- Investigate if undercarriage legs need changes or not?

- Make resin V1650 Merlin engine and convert to a 130 series.

- Make the engine bearers.

- Add detail to the bulkhead.

- Cutaway one set of engine cowlings to show the Merlin fitted within.

- On same side, remove the radiator cover fairing to expose the radiator and support frame below.

I will probably do all of this engine work on the port side, as this has the standard length Merlin so should match the V1650 better.

Edited by David A Collins
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Hi David

I don't know if this would be of use, and perhaps you already know about this, but Aires resin do a pair of Mosquito engines, with bearers and firewalls, I don't know how similar the Hornet is to the Mosquito in this area.

the instructions are here.

http://www.model-making.eu/products/Mosquito-FB-Mk.-VI-MF-Mk.-II-engine-set-TAM.html

845_rn.jpg

I thought some did an Aftermarket radiator panel, but not finding it, maybe be confused by this chap's build

http://hsfeatures.com/mosquitofbvish_1.htm

And, again, no idea if Mosquito parts would be of use.

Excellent detail and additions, very informative.

cheers

Troy

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The 100 series Merlin installation in the Hornet had many changes to reduce the frontal area, so I doubt the Aires set would be usable without a great deal of modification.

It's been a while since I've perused it, but from memory the RR Heritage Trust book (HS19) on the 100 series Merlins had some useful drawings.

http://www.rolls-royce.com/about/our-story/the-rolls-royce-heritage-trust/publications.aspx#historical

Regards,

Jason

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