Author Topic: Ariane-5 Booster recovery  (Read 32731 times)

Offline Jester

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Re: Ariane-5 Booster recovery
« Reply #40 on: 09/23/2015 12:32 PM »
Hi Papy One,

Thanks for sharing, I've heard stories about the recovery from other CNES and ESA colleagues, question however is related the the image of the P3C Orion aircraft from the US Navy, as my dad flew these, was this in "support" or did they do a low pass to have a peek and get some intel ?

Merci

P.S.
Love the booster image in-front of Isle Royal.
« Last Edit: 09/23/2015 12:32 PM by Jester »

Offline Baranquilla

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Re: Ariane-5 Booster recovery
« Reply #41 on: 01/16/2016 04:43 PM »
Anyone an idea how the floater works inside the ariane 5 SRB (eap) and how the segments are filled and attached to each other? Almost no info online..

Would greatly appreciate any help!
Because it's there - George Mallory

Offline CLE

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Re: Ariane-5 Booster recovery
« Reply #42 on: 01/17/2016 01:34 PM »
The US Navy P3 (from Point Mugu NAS) was on contract from CNES (through NASA) to observe the behavior of the SRB/EAP after separation and then the parachutes opening sequence. In order to ease identification of the SRB one of them had a high visibility red day glow sticker on its side(a unique feature on the AR5 EAPs).
The observation was successful.

Offline Hobbes-22

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Re: Ariane-5 Booster recovery
« Reply #43 on: 01/18/2016 12:07 PM »
Anyone an idea how the floater works inside the ariane 5 SRB (eap) and how the segments are filled and attached to each other? Almost no info online..

The best information on the Ariane 5 is available in French on the CapcomEspace site.

The EAP consists of 3 segments:
- the nose cone S1 is built and filled in Italy
- the main cylindrical segments S2 and S3 are filled at Guyana in the UPG building.



S2 or S3 being transported at Guyana:



Internal structure of the casting:


Edit: I think only the nose cone has a casting shaped like this. The main segments have cylindrical castings.

Vehicle used to transport a batch of propellant for casting:


The segments are joined with mortise and tenon type joins held by pins. The intersegment connections have 2 O-rings.

Early EAPs (type EAP-241) had more joins, these were joined at the factory. On the EAP-241A as introduced on the Ariane 5 ECA, these joins were replaced by welds.

 

After splashdown, the EAP tends to sit upright in the water. For recovery of the EAP, divers insert an inflatable floating device (IFD) into the nozzle. This is inflated with air, then ballast (attached to the IFD) is dropped, and the EAP should settle hoorizontally at the surface.





A diver's perspective (but the author already posted this on page 2 of this thread).

« Last Edit: 01/18/2016 08:05 PM by Hobbes-22 »

Offline Papy One

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Re: Ariane-5 Booster recovery
« Reply #44 on: 04/23/2017 01:48 PM »
As you may have read on my blog, the IFD were finally not used to recover the boosters.

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