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HelicopterScale Model RC Helicopters Docs  450 Scale Lynx AH-7 My first Scale build
01-02-2017 10:27 PM  10 months agoPost 81
seaharrierman

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Gosport UK

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Well busy a few days but I managed to get a few hours work on her in. Again using the Airfix kit as a guide in made strengthening panels, access panels from .25mm plastic card and glued in to place. Please note this is a stand off semi scale model so some of pieces are not precise.

the aerials are .5mm steel wire super glued to a .5mm piece of plastic cut to size then wrapped with .25mm plastic to hold in place

The second aerial is made from a single piece of 1.5mm plastic cut and sanded to shape

The panels have been glued to the tail boom using liquid poly the aerials will be permantly fixed after painting as will the tail skid which is made from 1.2mm brass rod bent to shape

There is a couple of bits I'm not entirely happy with and will adjust them next time I get to working on her

Glen

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01-02-2017 10:58 PM  10 months agoPost 82
ssmith512

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Indianapolis, IN USA

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All righty!! Surface details. I love it! Normally dont see this kind of detail on a smallish model. You are doing a bang up job!!

Steve

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01-02-2017 11:36 PM  10 months agoPost 83
206 pilot

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,Long Island,new​york

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Hey Larry have u flown it ? If so how does it perform?? A bud of mine was telling me that I think horizon has them a foamie I think lol... Rich

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01-03-2017 09:07 PM  10 months agoPost 84
seaharrierman

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Gosport UK

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Thanks Steve I thought she looked a bit limp without any details

Glen

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01-03-2017 09:07 PM  10 months agoPost 85
seaharrierman

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Gosport UK

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After get the Christmas decorations down this morning I did a few hours making the sky guardian RWR sensors.

I placed some 3mm plastic rod in my dremmel held in a vice. Set to 5000 rpm I shaped a hemisphere using one of my wife's nail emery boards and cut off at 2mm and repeated the process 3 more times.

For the front sensors I stamped 2 8mm discs and cut 2 5mm squares from .5mm plastic card and glued sequentially to the nose of the lynx

The rear sensors are made by gluing 3 5mmx11.5mm 2mm plastic together, once set shaped in the same ways as the skid ends these will be fitted after final assembly as they wont fit through the hole once attached to the tail boom

Starting to look like a combat helicopter hope every one is enjoying this build as much as I am.

Glen

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01-08-2017 11:57 AM  10 months agoPost 86
seaharrierman

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Gosport UK

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Well Guys this has taken me a few day to workout and trail and error but I got there in the end. While not a perfect replica of the engine intake sand filter its close enough for me. Here's how a made it

First I cut a 10mm strip of 2mm plastic. wrapped some tape around a brass tube to give me a 6mm internal radius. I fitted both in my vice and heated using the wife's hair dryer and once soft enough bent around tube and held until cooled. Be careful you do not over heat the plastic.

I trimmed the piece to size and shaped to give a leading and trail edge using the Airfix kit part as a guide

I glues using liquid poly a piece of 0.5mm plastic sheet to the inside of the intake once set reshaped and the using a progressive method start at the top glue the she to fuselage. Doing it gradually allowed me to better follow the shape of the fuselage. once in place be patient and allow the glue to set fully before feathering the edges to flush with fuselage model filler will be use later to fill any low points

The debris exhausts are made from 9.5mm and 8mm plastic tube cut to size and glued

Then fixed to fuselage again patients is needed to allow glue to set before moving on

Next I cut a 0.25mm strip the same width as larger end and glued to the bottom making sure it touches the fuselage.

Then carefully wrap around to form the fairing. Model filler will be used later to fill the gaps. A piece of 0.5mm plastic is used to form the end plate.

Once the glue has set the exhaust was sanded smooth. I also made and insert which I used to make the grill frames

The Grill frame is mage from 0.5mm plastic carefully cut out. At this stage it is not glued in place as I am in the middle of a dilemma I have some metal mesh and I'm not sure if I should use it or not. I will be opening up the original intakes to allow more airflow into the aircraft for cooling

Whilst they are not the perfect shape its close enough for me and I think they look good. maybe I'm the only one who has built one of these to try this which makes me unique :#*%:

Glen

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01-08-2017 04:46 PM  10 months agoPost 87
v22chap

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Granger, Indiana

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That is looking great , and this is the best part of scale for your self ... you only have you to please ... now if you were to go to a contest ,,, then it would be up to others , but what you are doing is the most fun a scale guy can have in my opinion .keep the pictures coming and Enjoy

Larry C ----------Bergen R/C helicopters

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01-08-2017 05:09 PM  10 months agoPost 88
seaharrierman

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Gosport UK

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Thanks Larry

As you can see from the box artwork I'm not to far out. But sadly there are always those that take things a little to seriously. I spent most of my work in close quarters to 847 NAS who were hangered near us 899 NAS at Yeovilton to you get to know the general arrangement although at HMS Heron they rare sported sand filter and IR diffusers but they did have them pre deployment.

Glen

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01-08-2017 08:19 PM  10 months agoPost 89
seaharrierman

rrApprentice

Gosport UK

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Have started work on IR Diffusers. Again using the parts from the kit as a guide. Taking measurements and sketching then transfer to 0.5mm plastic

I cut both sides and offered them to the fuselage to check for fit. I have decided to try and do this part of build without cutting the fuselage.

Next I made frames that will help form the shape

Will try and finish off tomorrow I'm hoping to finish the detail by the end of week

Glen

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01-14-2017 02:35 AM  10 months agoPost 90
206 pilot

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,Long Island,new​york

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Hey Glen, I finally caught up on your thread been working on my scale, man your doing a real nice job on the Heli it's coming along real nice, scale detail hand made always makes the Heli... Rich

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01-14-2017 09:15 PM  10 months agoPost 91
seaharrierman

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Gosport UK

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Thanks rich. Yes she is starting to come together very nicely

Glen

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01-14-2017 09:15 PM  10 months agoPost 92
seaharrierman

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Gosport UK

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Well at last I have had time to get some more work done on the diffusers. I continued by working my around the frames cutting each piece to fit.

Once the basic boxes where built I started on the Fluted exhausts. I started by bending 0.5mm card cut to rough size around a 3mm brass rod and held in vice and heated with wife's hair dryer. I use a hair dryer opposed to a heat gun as it more gentle and I'm only looking to get it hot enough to take the shape without melting.

Once all the veins where form they are cut to shape and using the Airfix kit part and a set drawings I was given.

then the veins are glued into place around a plastic tube

Once set where glued into the front of the diffusers

Next I marked out the area on the fuselage that will have to be remove to accommodate the exhaust. I and trying to keep the amount cut away to a minimum so shape and strength are not compromised

Once cut out the exhausts are test fitted

Now all I have to do is shape the diffuser add the leading edge ridge and figure out how fix the whole lot to fuselage.

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01-18-2017 09:09 AM  10 months agoPost 93
seaharrierman

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Gosport UK

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I Spent some time over the weekend working on the fuselage I Made the fairings that streamline the new exhausts. I did this by first gluing a piece of 0.25mm plastic to the air frame and allowed it to set then progressively glued it on the edges around the exhausts. 0.25mm Plastic easily shapes itself to form the fairing, I next glues a strip to trailing edge of the fairing as once set the welding auctioning of liquid poly will hold the shape once the exhaust is removed.

While I was waiting for glue to set I decide to attempt to make some air scoops. I decided to experiment with heating plastic and moulding it to shape. First I Carved the shape of the scoop into a balsa plug. then using a heat gun and holding the plastic with pliers so I didn't singe my finger once hot quickly pull it over the plug and hey presto air scoops.

After the glue set on the fairings I removed the tape to reveal a nice streamlined fairing

I spent the rest of the weekend cutting out shapes to form fairings and panels etc from plastic and gluing them to fuselage. I used the Airfix kit and drawings to get postion shape and scale.

She is starting to look less flat and more interesting will be carrying on with details this week and hopefully start paint over the weekend

Glen

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01-19-2017 09:11 AM  10 months agoPost 94
seaharrierman

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Gosport UK

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Yesterday I had a bit of time so I carried on with the detailing.

Roof mounted Tow Sight

Then I made the nose VHF Aerials

If I get time today I'm going to work on the belly panels and cargo hook

Glen

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01-21-2017 03:09 AM  10 months agoPost 95
206 pilot

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,Long Island,new​york

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Glen what happened to the front windows? Or is that just dust on them?? Rich

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01-21-2017 08:38 AM  10 months agoPost 96
seaharrierman

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Gosport UK

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Oh I hated the tinting so they are keyed read for painting lol

Glen

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02-11-2017 11:38 PM  9 months agoPost 97
206 pilot

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,Long Island,new​york

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Hey Glen what's the latest???Rich

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02-12-2017 01:58 PM  9 months agoPost 98
seaharrierman

rrApprentice

Gosport UK

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Hi Guys

Sorry been no progress as we have just moved house hoping to resume work this week. As I'm back to the kitchen table for the time being until my new workshop is insulated and has power run to it.

Glen

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02-12-2017 09:30 PM  9 months agoPost 99
206 pilot

rrVeteran

,Long Island,new​york

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Cool good luck with the house... Rich

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02-26-2017 08:20 PM  8 months agoPost 100
seaharrierman

rrApprentice

Gosport UK

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Well Guys your be glad to know that work has finally recommenced on my lynx project. I had to put it to one side as where we have moved to my wife insisted all my heli's and planes where kept in one place so I now have a nice 10ft by 6ft hanger(shed lol) which at mo while has space for me to work the current lack of power and insulation makes that impractical at mo. So I need to down size some boxes and merge a 500 with its intended fuselage a bit earlier than I wanted but it does take up less space now.

the lady flies beautifully

Once she was out the way I was allowed back to kitchen table until my workshop is useable.

All I have done so far is cut out the last belly details and carve a non functioning Semi Automatic Cargo Release Unit (SACRU) with at the moment is not fixed permanently in place.

The details are really making her look so much more realistic. So Far I am very pleased.

I have also been working on the lights. Using turnagy lighting system its ok but the strobes blink repeat is a bit quick for my liking but until I can sorce a more realistic blink blink 4 second pause blink blink it will do. I have replace the 5mm LEDs 3mm LEDs as the 5 were far to big for this model.

I'm almost ready to start painting, only have the light lenses to make and finish the ir suppressors

Glen

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HelicopterScale Model RC Helicopters Docs  450 Scale Lynx AH-7 My first Scale build
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