1/72 Vosper Perkasa

Harquebus

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.

radiantStar

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!

paulsiu

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% ...

Harquebus

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.

paulsiu

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 ...

Harquebus

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.