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48 minutes ago, TheBaron said:

2. Igniter unit (slung underneath) plus something above it that I think is to do with the oil system/cooler (I'll have a thumb through the engine manual later to see if I can identify that part more clearly for you):

50324317896_4cf4145263_b.jpg

 

 

4. Mumble mumble I think this bit is to do with the fuel pump system:

50324494462_8c91422d54_b.jpg

5. The ring of (what I think are) the igniter plugs immediately forward of the combustion chamber:

50324494472_8e4d5a3393_b.jpg

 

 

2 is the drive for the shaft that drives the hydraulic pumps

4 is the drive for the fuel pumps

5 they are the ring of fuel burners, I think there's only two igniters on Avon 200s, possibly near the igniter box.

 

Not that it matters one jot!

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58 minutes ago, keefr22 said:

You really do intend to make this thing fly, don't you Tony....??!! :pilot:

 

Amazing stuff!

I agree, but my only question is, where the heck is he going to get the pilot?!? :)

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33 minutes ago, michaelc said:

where the heck is he going to get the pilot?!?

I think, he will tell you in the the end.

Cheers

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4 hours ago, Ex-FAAWAFU said:

La vache sainte!

 

[Holy Cow, or pidgin French attempt at same]

In Spanish: Santa vaca!

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Bl**** ***l! Or words to that effect!

 

I was going to say I think the ring of "igniters" are fuel nozzles, as they tend to be located around the engine. I'm no expert on Avons but the engines I'm (sort of) familiar with only have 2 igniters, around 12 and 1 (or 11) o'clock depending on left or right engine. then I saw James had beaten me to it, so I won't.

 

I think this is actually a justified use of the oft overworked word "awesome"!

 

Ian

 

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My colleagues here appear to have nicked all the adjectives, so what can I say about this thing of wonderment...........wot they all said!

 

It will start up won't it Tony, tell me it will.

 

Terry

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5 hours ago, Space Ranger said:

In Spanish: Santa vaca!

While we are all showing off

 

Gyu Kami.  (Japanese).

 

AW

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11 hours ago, Ex-FAAWAFU said:

La vache sainte!

 

[Holy Cow, or pidgin French attempt at same]

Italian: Porca Vacca! (that's the exact expression we use, which is not a literal translation, though - we would never say "santa vacca" ... )

 

Tony @TheBaron, when do we ignite it?

:gobsmacked:  :worthy:  :worthy:

 

Ciao

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13 hours ago, michaelc said:

I agree, but my only question is, where the heck is he going to get the pilot?!?

 

He'll just make one (in fully working order of course... !!) :)

 

K

 

 

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1 hour ago, keefr22 said:

 

He'll just make one (in fully working order of course... !!) :)

 

K

 

 

He’s still in flying training.  Probably just going solo on a 1/72 Hunter somewhere on the Baronial Estates

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18 hours ago, TheBaron said:

it might be time to do a test print of the engine so at the weekend.

 

*grabs cloot to mop up the drooling*

 

Nicely greebled sir.

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As promised I did get to put a print on last night but in true Brythonmodeller tradition you'll have to wait whilst I deal with the Berlitz language school that appears to have opened up in my absence... :laugh:

On 9/9/2020 at 8:53 PM, Spookytooth said:

I/we cannot wait to see this take shape.

On 9/9/2020 at 9:20 PM, bbudde said:

Looks really great and I'm keen to see it printed.

Wait no longer Simon & Benedikt! 😁

On 9/9/2020 at 9:05 PM, 71chally said:

Words fail me!

Don't say that James! You're all that stands between civilization and multiple part misidentification! :rofl:

On 9/9/2020 at 9:29 PM, Ex-FAAWAFU said:

La vache sainte!

Gracias mein herr!

On 9/9/2020 at 9:34 PM, keefr22 said:

You really do intend to make this thing fly, don't you Tony....??!!

 

On 9/10/2020 at 12:56 PM, Ex-FAAWAFU said:

He’s still in flying training.  Probably just going solo on a 1/72 Hunter somewhere on the Baronial Estates

First night deck landing later lads! Wish me luck! :thumbsup2::thumbsup2::thumbsup2::thumbsup2::thumbsup2::thumbsup2:

50333460662_29d2d018b3_b.jpg

On 9/9/2020 at 10:34 PM, michaelc said:

where the heck is he going to get the pilot

 

On 9/9/2020 at 11:10 PM, bbudde said:

I think, he will tell you in the the end.

My reclusive colleague Dr.Moreau telegraphed me earlier to confirmhe has this covered and that a Mr.Hyde will be delivering them later this week. 'Ignore the tiny screams' he says..... 🧪🩺

On 9/9/2020 at 9:48 PM, 71chally said:

they are the ring of fuel burners

On 9/10/2020 at 5:41 AM, Brandy said:

I think the ring of "igniters" are fuel nozzles,

'Burners'. Gotcha. Thanks lads. :thumbsup2:

The manual I have only covers Avon 204/5s up to about 1959 but does have a rather luscious period graphic of this feature tucked away, showing how each burner feedsthe flame tube behind it:

50324938592_3ee62d195c_m.jpg

(You'd swear I'm almost beginning to understand how bits of this work now... :laugh:)

On 9/10/2020 at 7:06 AM, Terry1954 said:

It will start up won't it Tony, tell me it will.

On 9/10/2020 at 9:22 AM, giemme said:

Tony @TheBaron, when do we ignite it?

I must confess to some creeping doubts on the matter Terry & Giorgio; the manual I have is incomplete and seems to be missing a vital section on blue touchpaper, so I've currently no way of knowing how it started. 🧨

On 9/10/2020 at 7:50 AM, Andwil said:

While we are all showing off

I'm trapped in an episode of 'Ask the Family'... :laugh:

On 9/10/2020 at 7:55 AM, CedB said:

Stunning Tony

My burlesque stage name doncha know... :winkgrin:

On 9/10/2020 at 2:09 AM, Space Ranger said:

In Spanish: Santa vaca!

On 9/10/2020 at 3:56 AM, Pete in Lincs said:

'Tis a thing of beauty.

You really love Spanish phrases that much Don QuixoPete?...

On 9/10/2020 at 3:25 PM, hendie said:

*grabs cloot to mop up the drooling*

The carpet's will be ruined!

giphy.gif

 

11pm last night:

50333461122_9a0bbfea7a_b.jpg

9am this morning:

50332611548_f6a7e2cef1_b.jpg

Pleased to say that there were no nasty surprises waiting for me when I got up and with the aid of the new toy - the combined washing/curing station that Elegoo released a while back:

50332611498_2cd31e7a96_b.jpg

- both part cleaning and curing of the resin were quickly accomplished within a single device.

 

I should have bought one of these stations long ago to be frank as it makes the post-print cleanup almost an afterthought, rather than the prolonged and messy paper towel affair that it was previously. From a health perspective as well, aside from pouring the unused resin back in the bottle, it also diminishes significantly your chemical exposure.

 

The constituent parts released from their supports:

50332611563_f71156104a_b.jpg

I'd decide last night to add the fuselage shell and RAT as with a print going on, it made sense to test these parts as well as it wouldn't affect the overall print time (which with the print height set to 0.03mm was a shade under 10 hours -  worth it for reproducing the smallest sections of detail as crisply as possible).

 

As per usual, the surfaces of the parts are in their raw state as they emerge from the printer. The only sanding done  on what follows is to smooth away the support contact points tin order to assemble parts together:

Avon 208:

50333298556_e08c68bf5b_b.jpg

Front view of compressor blades and starter intake:

50332611628_9265c6059c_b.jpg

Reverse-angle of turbine blades at rear:

50332611583_01bdb8bbee_b.jpg

Side view of RAT/arrestor gear bays:

50333460877_a922216e3e_b.jpg

As hoped, the blades of the RAT are just visible to give the required presence of...errr...blades:

50332611693_ea9183218e_b.jpg

The big question though was always going to be 'will the engine actually fit into the bay?'

Yes!:

50333298596_567ddf952f_b.jpg

Not - it has to be said - without a struggle - but yes it does. The forward mounting pillar underneath the engine was actually in the way of angling the front section of it into the intake ducting, so this was peremptorily snipped out to make room. It's a tight fit to get the engine in but then it needs to be if it is to match the tight fit of the real Avons into the engine bays of this aircraft:

50332611743_8ae25c9527_b.jpg

Rib 0 (the inboard wall of the engine bay) looks a lot flimiser here than it will eventually be on the final production print: as printed here it's only 0.4mm thick whereas the finishd print for the whole aircraft will have the stbd fuselage section mirrored to produce the port side, making rib0 0.8mm to match the the wall thickness of the surrounding fuselage.

 

Front section of the engine nicely visible down the intake ducting:

50332611758_f578bcd8b7_c.jpg

Ditto on the turbine blades:

50333298661_6a4db22c07_c.jpg

To give a better idea photographically of how well the details reproduced I rubbed some fountain pen ink around the engine:

50332611818_1427be003d_b.jpg

 

50332611838_0fa0e39888_b.jpg

 

50333298686_4c8be709ed_b.jpg

 

50332611848_37e5a9be8f_b.jpg

 

50333461047_9336211084_b.jpg

Have to say that this is a major milestone achieved on the build now; I genuinely wasn't sure how feasible it was going to be to produce a decent-looking Avon at this scale but for me, it's a huge vote of confidence in terms of what resin printing can achieve.

 

The week ended on a nice high note as well with our eldest finding out yesterday afternoon that he'd got onto the science course he wanted at university. He's under strict instructions to get nuclear fusion technology working as quickly as possible now so that I can have a hovercraft of unlimited range when I retire. Am still furious with Arthur C. Clarke that this hasn't happened already.

 

Have good evening mes braves.

:bye:

Tony

 

 

 

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Wow, that looks amazing. Well done and state of art with a 3D printer. Really great result and worth the effort.

Cheers

Edited by bbudde
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My inner vulgarian has come forth and mentioned words to my mind that unfortunately Britmodeller forbids me to turn into sound!  Clucking bell will have to do!

 

Your manual for the Avon 204 is absolutely fine for this build, I remembered they are burners because I had to remove, clean and refit a set in fairly short order.

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congratulations on a successful print Tony - it looks great.  I'll bet you're glad the Avon popped into it's recess!

 

This was an ambitious project to start with but you have really got it tamed and the end product is really going to be a project to be proud of

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Nuts.

 

It's the.

 

Attention grabbed again by the.

 

You must be a genius, nuts has been oft'times used to describe geniuses.

 

And the 'Want, the unsustainable want' for this technology and the mental aptitude to drive it is driving me nuts.

 

Fabulous boyo, bloody fabulous.

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Since the few words available in the English language to adequately describe this have either already been used or aren't usable here, I'll just echo the others. Bloody marvelous!

 

Ian

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