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Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sat Jun 09, 2018 1:24 pm
by Jay-Em
By the by.
For those of the ‘rivet-counting persuasion’ there’s this rather useful link:
http://www.primeportal.net/tanks/yuri_p ... php?Page=1
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 1:58 am
by Ragnar
Beautifully done and the female crew members are excellent also TTUPS!

Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 11:50 am
by Jay-Em
Thanx!
I am currently busy opening the rear engine hatches. In all pics and running vids, those 2 flaps at the rear end are opened, and I’m not really a rivet-counter, but still too much a strickler to led larger details like that slide. It would also help with the rather muffled sound. ( and maybe even -like the real thing- help with keeping the motors cool. The last few days of 28+ degrees C really made the motors cook)
The IBU2U already isn’t the loudest, despite the “12watts” it purports to put out. (More like 3 to 4 at best. Not very nice, mr IBU, to put up that bit of false advertizing) and fully closing the body made it worse.
No mean feat, though, to open up those hatches cleanly. The plastic is rather thick there, and the rear is at an angle, so blatantly dremeling through it won’t work.
That’s the thing, is it? With our hobby, no tank is ever “really done” One keeps seeing things to improve.

Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 11:53 am
by Soeren
Hey Jay, soeaking of sound level, what kind of speaker are you using?
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 11:55 am
by ruben2005
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 12:03 pm
by Jay-Em
@ Soeren
5w 4 ohm. ( type and brand is in the description) The 10w 4ohm and 10w 8 ohm are worse. The 5w 4 ohm in small housing, rctank sells is even móre worse, shrill, nasty without bottom, and no louder than the not-too-bad-little pill-box Heng Long includes. ( naturally. ‘Bass needs space’, as they say..) The speaker is set into a 9 x 6,5 x 3 cm hard plastic box.
My little -somewhat more detailed- rant about the IBU2U’s lackluster soundpressure is in another thread.
Let’s just say that it isn’t super low volume, but the older IBU2 and even the Clark TK-22 are much louder.
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 7:33 pm
by Jay-Em
Well, after a day of fiddling and pondering ways to simulate the grating in the engine-bay cooling outlets, it struck me: I still had some photoetched grills from my Königstiger left over. They would make perfect covers for the vents. I cut them to size and ca’d them on the ducts. A bit of Vallejo Model Air #12 later : Perfect!
And, as I already surmised, opening the rear vents helped the sound quite a bit. The mid-highs are back. And kinda cool that the noise is louder at the back than at the front. Makes for a far more convincing doppler effect. Cooling seems to have improved too.
Detailed view:
Sideview:
Just for the fun of it, birdseye view:
I attempted to make a running video, but that got way too big. Took it in HD by accident. Upload would take several hours.. no thanks. I’ll try again tomorrow at a lower rez.
(Heh.. just noticed one of those blighted hoses has popped-off.. tsch..)
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 8:09 pm
by c.rainford73
Looking good. Love the rear covers.

Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Sun Jun 10, 2018 8:23 pm
by Jay-Em
Thanx!
Yeah, they came out much better than I had hoped for. I wish HL had kept them open by default. Getting them cut out in a reasonably neat and orderly way wasn’t fun.
Re: T-90 after a lot of paint, and some rather expensive fig
Posted: Mon Jun 11, 2018 12:28 pm
by Soeren
Ah, thanks I see it now 4ohm visaton frs5. In My Bag panther I got the fr7 with box from tank-modellbau. That includes acoustic fiber wool. Makes a big difference. I am now doing frs7 for my Panther and Tiger. Box in the Panther is 4mm plywood 10x7x4.8 outside. Waiting for the fiber to finally close it up and do some tests. The 8ohm fr5 from rc-tank in the small box is quite bad.