Builds Dawning of the Wokka Wokka - Simmerits epic build of the 1/35 Trumpter Chinook.............

But not so chuffed with hataka paints as I recall
I gave them a caning on Britmodeller and the manufacturer ended up writing to me on the thread. May be something to do with 250,000 hits....... and am impact on their sales:)

I have lots of Hataka paints now (funnily enough all free would you believe) but will trial them thoroughly before using them. They reckon they have addressed the problem but we will see
 
you'd just need to make sure they were both to the same standard..

"dont worry love, they're be out of your way in 5 or 6 years."
He's in enough trouble with the boat on it.....but I suppose he could claim that swapping over to twin wokkas is a space saving exercise
 
I gave them a caning on Britmodeller and the manufacturer ended up writing to me on the thread. May be something to do with 250,000 hits....... and am impact on their sales:)

I have lots of Hataka paints now (funnily enough all free would you believe) but will trial them thoroughly before using them. They reckon they have addressed the problem but we will see
I got told that at one of the shows a little while back by someone "involved" with developing their paint.....still passed them by :)
 
Nail head/hammer interface. This is exactly why I get so lost in my wood art. With nothing but a pile of wood and some tools I escape from the world, my brain and (temporarily) my pain. Nothing else exists outside my workshop. It's how I survive.

Liked, liked and liked again.
Wood you say - why don't you carve out a set of Chinny rotors for Simmy then and put him out of his misery :)
 
Wood you say - why don't you carve out a set of Chinny rotors for Simmy then and put him out of his misery :)
Too late
ED2A7387-312F-4C45-887D-61D8005FCA3B.jpeg


New rotors have arrived, together with a new Wokka:)

Normal service will resume soon hopefully, once I’ve got the Dauntless out of the way
 
May be a dumb question but can a Chinook still auto-rotate if it breaks a shaft to one rotor or does the wind speed still keep the 2nd rotor spinning at the same speed as the driven one.?
 
May be a dumb question but can a Chinook still auto-rotate if it breaks a shaft to one rotor or does the wind speed still keep the 2nd rotor spinning at the same speed as the driven one.?
phwoar. Bit technical for me there fella. I do know a lad who is still flying them so if I get a minute I will ask the question, unless there are peeps on here can cover that one
 
May be a dumb question but can a Chinook still auto-rotate if it breaks a shaft to one rotor or does the wind speed still keep the 2nd rotor spinning at the same speed as the driven one.?
Under those circumstances, no. The blade discs intermesh. Problem #1 is one rotor is now carrying all the load. Problem #2 manifests itself almost immediately in that the remaining powered rotor is no longer synchronized with the failed one and mashes seven shades out of the failed one, which in turn destroys the blades of the previously, however briefly, one good rotor disc. Cab goes down. Unfortunately, this has happened in real life. North Sea BA civvy model for one. Bad ju-ju.
 
Well, thanks for that Auld-Yin.

Your link and the 1st post in it says NO, goes into detail and then says YES, then the Pruners wander off into their own technical world for 72 posts before someone repeats the question, is it Yes or NO? So after another 80 technical posts another link was posted to another prune thread and after reading another 1.86 million posts I not only think I know the answer, i'm positive I could climb into a Chinook and steal it.

Here is the skinny on Auto-rotate though:

1) Yes they can, if one engine fails the 2nd engine pulls in the extra power and keeps the thing airborne.
2) Yes they can, if both engines fail they can transit to an auto-rotate and hopefully land safely.
3a) No they can't, if the gearbox, or as in my question a shaft breaks, the blades will almost immediately mesh and cause a complete aircraft failure.
3b) Yes they can: If the pilot can shut the engine power off before the gearbox or shaft breaking becomes catastrophic. (Which seems unlikely but I read that it has been done).
 
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Under those circumstances, no. The blade discs intermesh. Problem #1 is one rotor is now carrying all the load. Problem #2 manifests itself almost immediately in that the remaining powered rotor is no longer synchronized with the failed one and mashes seven shades out of the failed one, which in turn destroys the blades of the previously, however briefly, one good rotor disc. Cab goes down. Unfortunately, this has happened in real life. North Sea BA civvy model for one. Bad ju-ju.
Beat me to it, after I stopped to make an edit but it's nice to have a 2nd opinion.
 
Well, thanks for that Auld-Yin.

Your link and the 1st post in it says NO, goes into detail and then says YES, then the Pruners wander off into their own technical world for 72 posts before someone repeats the question, is it Yes or NO? So after another 80 technical posts another link was posted to another prune thread and after reading another 1.86 million posts I not only think I know the answer, i'm positive I could climb into a Chinook and steal it.

Here is the skinny on Auto-rotate though:

1) Yes they can, if one engine fails the 2nd engine pulls in the extra power and keeps the thing airborne.
2) Yes they can, if both engines fail they can transit to an auto-rotate and hopefully land safely.
3a) No they can't, if the gearbox, or as in my question a shaft breaks, the blades will almost immediately mesh and cause a complete aircraft failure.
3b) Yes they can: If the pilot can shut the engine power off before the gearbox or shaft breaking becomes catastrophic. (Which seems unlikely but I read that it has been done).
I don’t think there would be much hope here though due to the loss of a rotor

C8CB4261-C754-4AFD-92C4-C831ED0455C6.jpeg
 
May be a dumb question but can a Chinook still auto-rotate if it breaks a shaft to one rotor or does the wind speed still keep the 2nd rotor spinning at the same speed as the driven one.?
Chinook rotor blades intermesh (so long as they’re rotating at the same speed), If a drive shaft were to fail it would be a bad day out.
Edit: beaten to it... in a double simultaneous engine failure it is theoretically possible to enter auto’s if you’re quick and have sufficient altitude. AFAIK this wasn’t taught or practiced on Lynx courses (“... because it has 2 engines...”) though most ( if not all) units did practice. Dunno about Chinook though, and as for Osprey...
 
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Having had several successful autorotations in Chinooks I can safely say that providing the centreline drive train is intact then yes they can. Where a centreline transmission or driveshaft fails then its goodnight (as happened to BA and 2 RAF, the RAF ones were a day and 8,000 miles apart ... the signal grounding the fleet after crash no1 at Odiham didn't reach 78 Sqn at MPA in time to prevent no2 lifting off and promptly thrashing itself to death on the pan, both due to a Boeing drawing error within the aft transmission bearings.
Loss of one engine doesn't adversely affect the beast too much ... it has been known to lift off with the engines at ground power and undersling a load still ... but when the donks didnt quite spool up as expected during transit the load was dropped and aircraft landed, whereupon the power setting error was discovered (checks introduced after this prevented the condition recurring).
 
My experience of Wokka wokkas bring into doubt the authenticity of your model.

Germany, Wokka crash whilst I was on shift.

Germany, one "poorly controlled landing" whilst on site guard (Munster Nord, attributed to engine failure).

Falklands, Wokka crash whilst I was on shift, (Not the "Penguin", the wokka with the broken back at MPA, this was the "repaired" one undergoing test).

Northern Ireland, Wokka crash whilst I was on shift (Mull of Kintyre).

Anyway, if you insist on building a 3 dimensional one, it's looking cracking!
(Hope it's done up as BN).
 

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My experience of Wokka wokkas bring into doubt the authenticity of your model.

Germany, Wokka crash whilst I was on shift.

Germany, one "poorly controlled landing" whilst on site guard (Munster Nord, attributed to engine failure).

Falklands, Wokka crash whilst I was on shift, (Not the "Penguin", the wokka with the broken back at MPA, this was the "repaired" one undergoing test).

Northern Ireland, Wokka crash whilst I was on shift (Mull of Kintyre).

Anyway, if you insist on building a 3 dimensional one, it's looking cracking!
(Hope it's done up as BN).
Erm have you noticed there is a bit of pattern here? every time you are on shift, a Wokka seems to crash:oops:

I may finish the thing this side of Christmas with a bit of focus..
 

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