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Author Topic: Royal navy BH7  (Read 18116 times)

unbuiltnautilus

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Re: Royal navy BH7
« Reply #25 on: December 30, 2011, 10:19:28 AM »

The local B&Q in Portsmouth has the pale orange equivalent in stock in 2'x4'x4" ( i think its 4") at about 7 a sheet. Its in the roofing insulation section. Sands just as well as the blue foam..
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Circlip

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Re: Royal navy BH7
« Reply #26 on: December 30, 2011, 11:30:22 AM »

Technical name is Extruded Polystyrene Foam as opposed to Expanded Polystyrene Foam. Easy to spot the difference from 10 paces, Expanded is the original packaging and is comprised of big bubbles (Like in  bean bags) bonded together. Extruded has a smooth unbroken surface.

  Blue foam has now been "Greenified" and is Pink! Mentioned the B&Q stuff a while ago. Cut with hot wire, scalpel or saw with Bread knife, Sand and seal with Emulsion or skim with paper/card.

  Regards    Ian.
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RaaArtyGunner

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Re: Royal navy BH7
« Reply #27 on: December 30, 2011, 09:25:48 PM »

Trivia for OZ users.

In Oz, the colour denotes its density, in other words how soft it is.
It is commonly referred to as foam rubber and is available from very soft, pale yellow to almost rigid, dark green and used by florists for floral arrangements as it holds water very well in the flower arrangement.

From memory it disintergrates, turns to dust, over time.
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Arrow5

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Re: Royal navy BH7
« Reply #28 on: December 30, 2011, 09:47:24 PM »

I think you may be referring to "Oasis" used by florists, a very different sort of beast. The colour blue was the Dow-Corning product I believe and the pink colour was from an other manufacture, I may be wrong there but Oasis the water retaining green stuff is meant to hold water but the blue foam absorbs less than 1% after being submerged for a year. It is used in the construction industry as a base for pouring concrete on etc. The Oasis  can be crushed in your fist.  Read the Sheffield Insulations pages, the B1 grade is the finest "grain" and is the most dense.
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ben hall

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Re: Royal navy BH7
« Reply #29 on: December 30, 2011, 11:08:09 PM »

very interesting
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hover tim

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Re: Royal navy BH7
« Reply #30 on: December 31, 2011, 05:38:43 PM »

I went to my local B&Q and i could not find anything suitable i called into Wicks on the way home and i found some its a foam type known as kingspan there are others names for it but its all the same stuff thanks for the helps guys I have been doing some more today the pilots cabin has been made and the mast and support and also been made both are removeable to allow for ease of transport the mast and box can go in the side cabins but the pilots cabin will have to be in a box with the pylon when i get round to sorting one out

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Arrow5

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Re: Royal navy BH7
« Reply #31 on: December 31, 2011, 05:53:21 PM »

Tim , check the Yellow Pages for your local Sheffield Insulations depot. Find out from them if any building sites near you have bought any blue foam and go on a scrounging mission for off-cuts, take the model with you :}
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Circlip

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Re: Royal navy BH7
« Reply #32 on: December 31, 2011, 06:22:33 PM »

There's a SI depot in Leeds Tim. Last sheet of Blue foam I got from them was a damaged piece and took a lot of convincing them it would be OK for my use. Nearly had to break his arm to take the price of a "Drink". Since your making big flat areas, you should have a look at using "Depron" sheets. This is EPP - Expanded polypropelene sheet and is being used in preference to Balsa on large scale toy Aeros.

   Regards    Ian
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hover tim

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Re: Royal navy BH7
« Reply #33 on: January 01, 2012, 11:15:46 AM »

I will have to go to the depot in Leeds as for the use of Depron i am not a fan quite easy to damage and EPP does not give a smooth finnish when painting 
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hover tim

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Re: Royal navy BH7
« Reply #34 on: January 08, 2012, 04:26:03 PM »

more work has been one i have made the fins which are removeable for transporting the model i have also made/used the foam i was after for the front of the model i have put a skim of filer over and sanded more is required to take out and dents one done i will paint on some PVA thinned down with water to seal them   

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hover tim

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Re: Royal navy BH7
« Reply #35 on: February 04, 2012, 04:08:57 PM »

more has been done i have mounted the lift fan and done some of the detail work she is going well



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unbuiltnautilus

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Re: Royal navy BH7
« Reply #36 on: February 04, 2012, 04:12:56 PM »

Tidy looking lift fan, I have seen similar in a locally owned SRN6, worked well too.
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hover tim

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Re: Royal navy BH7
« Reply #37 on: February 04, 2012, 05:03:30 PM »

the fan was made on a cnc,lasercutter,milling machine so far better than done by hand
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hover tim

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Re: Royal navy BH7
« Reply #38 on: February 07, 2012, 05:42:56 PM »

any info on the SRN6 i have got a few thoughts of who it may of been
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unbuiltnautilus

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Re: Royal navy BH7
« Reply #39 on: February 08, 2012, 03:48:23 PM »

Belongs to my mate Ahmed and built on the Isle of Wight by...can't remember his name :-)





Really impressive model, although your BH7 is starting to look like it will give the SRN6 a run for its money!!
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hover tim

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Re: Royal navy BH7
« Reply #40 on: February 09, 2012, 05:50:37 PM »

ahh yes it was built by Mark Porter on the IOW and Ahmed added sale deatil and working puff ports.Many thanks for the coments about my Model
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unbuiltnautilus

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Re: Royal navy BH7
« Reply #41 on: February 10, 2012, 09:25:52 AM »

Noisy little sods, those puff ports :-)
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hover tim

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Re: Royal navy BH7
« Reply #42 on: February 10, 2012, 06:32:30 PM »

yes there EDF fans mounted in the model i dont think they are needed really and its more weight for the model to carry
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hover tim

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Re: Royal navy BH7
« Reply #43 on: February 12, 2012, 05:58:26 PM »

more of the rook lats have been put on today and the bow door has been ajusted so it opens futher

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Hover Tim

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Re: Royal navy BH7
« Reply #44 on: April 09, 2012, 05:27:04 PM »

well its been a while but i have managed to do quite a bit since the last post i have mounted the motor and prop cut the pilots cabin windows out and finished the lats on the roof and bow door i have cut the windows out and started the lats down one side

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Hover Tim

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Re: Royal navy BH7
« Reply #45 on: June 02, 2012, 09:39:00 PM »

Well after a few weeks off i got back to it today more lats have been put on the side and some deatil has been done on the side door

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Sub driver

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Re: Royal navy BH7
« Reply #46 on: June 02, 2012, 10:19:27 PM »

Hi Tim.
looking good. :-))

Regards Sub.
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colin-stevens

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Re: Royal navy BH7
« Reply #47 on: June 03, 2012, 10:36:58 AM »

Interesting build. Really looking forward to seeing how you make the "skirts".
Colin
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Hover Tim

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Re: Royal navy BH7
« Reply #48 on: June 03, 2012, 03:56:58 PM »

the skirt will be subcontracted but i do know a bit about skirts what interests you
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colin-stevens

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Re: Royal navy BH7
« Reply #49 on: June 03, 2012, 05:38:23 PM »

Hoping we are both refering to the same type of Skirts here. I was looking forward to how you would design the skirt to get that "bulbuous" effect.
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