Topic: Target towing launch (Read 18228 times)

moonlight · « **Reply #25 on:** November 26, 2007, 01:06:44 pm »

Not the best photos in the world - I'm afraid the best ones were too blurry - boat at full speed and telephoto lens was too much to handle!

Hope for some better images at next sailing!

Pete

moonlight · « **Reply #26 on:** May 12, 2008, 11:29:52 pm »

Finally got round to testing the MkII target on Sunday - was working well - with definite plumes of spray.

However, by the time I got the photo the boat battery was running a bit low - which meant the towing speed was a bit slow.

Pete

rem2007 · « **Reply #27 on:** May 13, 2008, 10:13:44 am »

Hmmm, sounds like an interestng side project to go along with mine.

GaryM · « **Reply #28 on:** May 13, 2008, 05:32:18 pm »

Do the warship models actually fire projectiles?

Gary

moonlight · « **Reply #29 on:** May 13, 2008, 05:43:51 pm »

Hi Gary,

There are projectile firing boats out there - but these are RAF target towing boats. The targets were for RAF gunnery practice from aeroplanes.

Pete

rem2007 · « **Reply #30 on:** May 13, 2008, 07:06:20 pm »

It ook 5 months to build mine and I don't think I 'd want anything fired at her

moonlight · « **Reply #31 on:** June 01, 2008, 08:45:05 pm »

Further testing at Wicksteed today.

3 targets tried - two Larne worked well.

The third target a twin float had a tendency to be dragged under the waves!

Pete

moonlight · « **Reply #32 on:** June 16, 2008, 10:32:55 pm »

Footage on "Warship" tonight showed a Larne target out of the water - and being used for shooting/bombing practice for the Merlins and Harriers

Pete

Martin (Admin) · « **Reply #33 on:** June 16, 2008, 10:44:50 pm »

Yeah! I woke for just a few minutes ans spotted that too!

rem2007 · « **Reply #34 on:** June 16, 2008, 11:09:52 pm »

The bloke on the machine gun was a nightmare, didn't come close and then the chap who flew the Harrier said,'well I was only 20 yards away and with a bomb, thats close enough!'. Just like we use to say back home, close only counts in horseshoes or hand grenades

Bunkerbarge · « **Reply #35 on:** June 17, 2008, 08:49:44 am »

I saw the Warship episode last night and was actually quite surprised at how inacurate the machine gunnery was and these guys are actually operationally ready!!

As for the Harriers the bombs were in all fairness unguided lumps of concrete and to get one of those within 20 feet dropped from a fast jet was a pretty good shot to me.

I would stay away from armed helicopters though in future!!

tigertiger · « **Reply #36 on:** June 17, 2008, 11:56:02 am »

saw this on a BBC documentary DVD recently.
In WW2 bomber command was looking to evaluate the accuracy of the bomb dropping on target. The hit rate was so low that eventually the had to widen the hit radius to within 5 miles of target to get anything like a reliable figure. And even then it was a very low percentage (can't remeber how low). Bear in mind they were dropping at night.

I think this was part of the rational for shifting to daylight raids, and the reason for allowing bombing of civilian targets.

Different times.

Sorry to hijack the thread.

tigertiger · « **Reply #37 on:** June 17, 2008, 11:57:24 am »

Q.
How far behind the launch would targets have been towed?

John W E · « **Reply #38 on:** June 17, 2008, 03:12:53 pm »

A.

According to my ever trusty Admirality Manual of Seamanship - Volume II - 1051 oops old book make that 1951. :) :)

It states that the target should be towed behind the ship at the distance of 300 fathoms - that is what it says!! So, your target is 300 fathoms under the watta (water to all of you). Seriously it says 300 fathoms.

To fathom it out - when I went to school it was 6 foot to the fathom or thereabouts - so 300 x 6 foot is 1800 feet from the stern of the ship, travelling at between 20 and 28 knots using a towrope of 1 1/2 inch diameter. Apparently, there is a handbook about constructing and towing of targets B.R 1596....

So work the length out in scale

aye
john e
bluebird

Martin (Admin) · « **Reply #39 on:** June 17, 2008, 03:22:59 pm »

What projectiles can I use on a model that don't need a licence?
What vessel do we recommend for TESTING the towed target?

Martin ::)

banjo · « **Reply #40 on:** June 17, 2008, 03:48:46 pm »

Bluebird.

Wasn't all cable, ropes etc measured in fathoms from the ropeworks?

tigertiger · « **Reply #41 on:** June 17, 2008, 03:53:30 pm »

Quote from: Martin - Forum Admin on June 17, 2008, 03:22:59 pm

What projectiles can I use on a model that don't need a licence?
What vessel do we recommend for TESTING the towed target?

Martin ::)

"Lets go paintballing"

GaryM · « **Reply #42 on:** June 17, 2008, 09:08:23 pm »

There must be some system in which I can totally annihilate a towed decoy - not much point if you can't blow it sky high.

regards
Gary :)

tigertiger · « **Reply #43 on:** June 18, 2008, 02:44:49 am »

Quote from: GaryM on June 17, 2008, 09:08:23 pm

There must be some system in which I can totally annihilate a towed decoy - not much point if you can't blow it sky high.

regards
Gary :)

My thoughts.

I think in real life the taget was punctured not blown up.

But if you did want to blow it up you could cheat, simulate this.

Use thin strand copper as towing line, and set up a charge on the floating target.
Then you also need to simulate a firing point. Either a model aircraft flying at it (other RC Tx and pilot) and you judge when to let it go bang. Or a ship with simulated cannon fire.

moonlight · « **Reply #44 on:** June 19, 2008, 12:06:09 am »

Quote from: Martin - Forum Admin on June 17, 2008, 03:22:59 pm

What projectiles can I use on a model that don't need a licence?
What vessel do we recommend for TESTING the towed target?

Martin ::)

I would have thought its obvious - you need a good sized model of the Invincible to tow the target!

As for missiles - BB gun?

Pete

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Author Topic: Target towing launch (Read 18228 times)

moonlight

moonlight

GaryM

moonlight

moonlight

moonlight

Bunkerbarge

banjo

GaryM

moonlight