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[Circlip]

I see you never miss an opportunity.

good bow wave and speed duration a good 3 hours

  No, but I can read and understand wot the poster posted. Need to let him fall down before picking him up.

[red181]

Everyone knows that the fire tender always hurtled about like a scalded cat.

Actually, as it happens, if you would care to look at the attached pathe news link, the RAF crash tender, as modelled by Aerokits, was intended to perform like a scalded cat, Given how old the boat is now, that was a very impressive turn of speed, and it could stop in its own length. Also, look at the crew, its a common  misconception regarding the size of this boat, it was actually quite small.

http://www.britishpathe.com/record.php?id=47447

Regiment, you enjoy your 3 hrs, I just happened to comment that I like to go fast, for a short duration,

UKboats,  Back to the original question, yes it is possible to achieve a great performance on a brushed motor, I would personally recommend a graupner 700bb turbo, 12v version if running on direct drive, and run it on its maximum voltage of 19.2, its very good, with a 40mm  "x" prop 2 blade will run for 25 mins flat out. If its too fast, and you want longer run time run on less volts. I run mine on a 8.4v graupner 700 bb turbo, but with a 2:1 gearbox, 19.2v nims, 45mm 3 blade cleaver prop. These set ups are tried and tested, , it all depends on the performance you want really, plenty of video on the fireboat website with setups, so you could actually choose what speed you want, and duplicate that setup hope that helps

[Circlip]

Wasn't at 41/42 secs when it was blasting foam.

[red181]

Wasn't at 41/42 secs when it was blasting foam.

and up to that point?, bet deep down you where impressed by its speed

[dodgy geezer]

and up to that point?, bet deep down you where impressed by its speed?

I was impressed by the speed, and the maneuverability. But I had read that these things could also stop in their own length, and so I wondered why it pulled up at the flaming target, started spraying it with foam, and then continued to drift past it, making it hard for the foam operators to keep on target.... 

[red181]

maybe because it was testing, if you look closley, that is not RAF crew, it was actually Vosper personel, and the boat is flying the pennant that at the time signified "vessel under test, may deviate from course" (or something very similar!), I think it was the "A" pennant, blue and white, which today has a different meaning, I think now its "Divers in water" ,

Whilst it could stop in its own length, I hardly think any boat is going to just stop dead and not "float"

[Circlip]

Whilst it could stop in its own length, I hardly think any boat is going to just stop dead and not "float"

  Trafalgar and Astute did.

  Regards   Ian.

[Lord Bungle]

I know my old seaplane tender 1510 (now in bits and not restored as I though :( )
had a great turn of speed,when it was on plane it felt more of the hull was out of water than in it. It could pull up quickly by sticking full into reverse but you had to know what you were doing.

[red181]

Trafalgar and Astute did.

did they? prey tell, what relevence does this have to the Fireboat? and the original question, I doubt this will help with the decision about what motor to use, 

   , lets compare  crafts,




 would love to see this on the plane ,