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標題: 1/72 Vosper Perkasa [打印本頁]

作者: radiantStar 時間: 4-2-2014 11:21
標題: 1/72 Vosper Perkasa
Tamiya 1/72 Vosper Perkasa, a small but fine model.

作者: paulsiu 時間: 4-2-2014 12:11
Good job, sailing very nice with speed ...

作者: radiantStar 時間: 4-2-2014 12:18

paulsiu 發表於 4-2-2014 12:11
Good job, sailing very nice with speed ...

Thanks, the Brave Class has very good hull form indeed~

For reference, the last surviving Brave Class, the Brave Challenger (previously "Mercury"), remains the 6th fastest vessel (max. 60 Knot) in the world today!

作者: paulsiu 時間: 4-2-2014 16:39
brushless motor ?

作者: radiantStar 時間: 4-2-2014 17:53

paulsiu 發表於 4-2-2014 16:39
brushless motor ?

No.

370 motor with twin screw.

作者: cmpang 時間: 4-2-2014 18:11
正 ...

作者: radiantStar 時間: 4-2-2014 18:48

cmpang 發表於 4-2-2014 18:11
正 ...

多謝觀賞！

作者: Harquebus 時間: 23-6-2014 04:14

radiantStar 發表於 4-2-2014 17:53
No.

370 motor with twin screw.

Is that 370 twin motor / twin screw or one 370 motor and twin screw through a gearbox of some type? Would be pleased for you to show the inside arrangements.

作者: radiantStar 時間: 23-6-2014 09:45

Harquebus 發表於 23-6-2014 04:14
Is that 370 twin motor / twin screw or one 370 motor and twin screw through a gearbox of some type ...

It's twin 370 with twin screw direct injection, i.e. without gearbox.

Let me take pictures when I return home tonite and show you.

作者: radiantStar 時間: 24-6-2014 00:12
Here you go~

作者: Harquebus 時間: 24-6-2014 21:54
I was not sure there was room for two 370 motors but there they are. Interesting special black color--I must look into these. As far as the kit goes, I always seem to think if it has 3 screws then it needs 3 screw power (it can be done!) and most patrol boats seem to have 3 engines/3 screws; but two will do.

Thanks for the photos.

作者: radiantStar 時間: 25-6-2014 00:46

Harquebus 發表於 24-6-2014 21:54
I was not sure there was room for two 370 motors but there they are. Interesting special black color ...

For a small boat like the 1/72 one, there is really no need for 3 screws / 3 motors.

Yes, you're right; the real boat goes with 3 gas turbines. You may make a model with 3 screws / 3 engines, but no doubt you would need a bigger boat, I believe at least a 1/35 , or bigger!

Good luck!

作者: paulsiu 時間: 25-6-2014 09:46
Hi guys, just got a 380 water cooled motor for my 1/72 OSA, and it runs well. Guess so long as the vessel runs, probably not a need to resemble the real vessel 100% ...

作者: Harquebus 時間: 25-6-2014 13:19
But, it would be interesting to witness the dynamic of three motors churning the water--which I think the typical setup is two counter-clockwise (left) rotation, one clockwise (right) ...like the Bismarck.

Also, (sometimes) I like the vessel to look good out of the water and when on display on the mantle above the fireplace

. So scale appearance is much desired--it must have the proper number of propellers. But this is a secondary concern.

Perhaps three 130 to 180 size motors would fit? Just thinking out loud. Gruß.

作者: paulsiu 時間: 26-6-2014 09:55
Tough to balance out the 2: RC performance vs realistic appearance ...

For me, Am going for RC performance then appearance. For my 1/200 destroyers/battleship, there's no issue as there's plenty of room for 2 - 4 motors. However, for smaller vessels, say 1/350 or 1/72 missile/topedo boats, there could be a challenge, using smaller motors for 1/350 battleships is do-able, however, it may not give enough power required by 1/72 boats ... tough call ...

作者: Harquebus 時間: 27-6-2014 02:56
本帖最後由 Harquebus 於 27-6-2014 03:01 編輯

paulsiu 發表於 26-6-2014 09:55
Tough to balance out the 2: RC performance vs realistic appearance ...

For me, Am going for RC p ...

Well maybe the access to certain electronic components is limited--I find brushless difficult to obtain or somewhat costly but... Have you seen this:

http://www.youtube.com/watch?v=kDu-SZjSgS4

The 1/72 Tamiya PT-15 is 20mm wider in the stern than the Vosper Perkasa but I believe the same motors used there will fit the slightly smaller Vosper. I like the possibilities and the challenge.

I still like brushed motors and some high-speed 130 (competition slot car motor) might do the trick.

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