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View Full Version : Sealand hovercraft from millom 1970s slide show video



markiemadman
28-Sep-10, 11:36 PM
Have you checked the sealand hovercraft video slide shows on youtube. www.youtube.com/watch?v=bXC53kFvFjc (http://www.youtube.com/watch?v=bXC53kFvFjc)
AND www.youtube.com/user/Markiemadman?feature=mhum
There are 5 slide shows.
One shows you the craft being tested in military colours for the Spanish navy.
Another one shows you testing in the snow.
If you dont know who sealand hovercraft are,they built one of the finest and most powerful crafts in the 1970s.
The slide shows on youtube have only just been put on there and show alot of good pics
never seen before.
Hope you like the slide shows as good as me
Mark Sewell

Mustang Hovercraft
30-Sep-10, 02:08 PM
Thanks for uploading Mark - they are great!!

Brian G. Reynolds
30-Sep-10, 06:08 PM
Good one Mark, I enjoyed them!

They were beautiful craft!

Brian.

markiemadman
1-Oct-10, 11:39 AM
Glad you like the slide show vids I PUT ON YOUTUBE.
Hope to dig out more archive pics soon and upload some more.
mark

Brian G. Reynolds
1-Oct-10, 04:16 PM
That would be good!

How about a little history for those that do not know?

i.e. ME......

Good man,

B.

KipMac
1-Oct-10, 05:54 PM
In their day they were only reasonable performers.
Very difficult to get over the hump and very poor controllability.

The weak link was the centrifugal lift fan gearbox which was prone to overheating

I spent quite a bit of time working on one in Devon to improve the handling by putting a butterfly valve and a side opening port linked together in each thrust duct. They were hydraulically controlled.

It made a considerable difference but I spent many an hour ouside the cabin lending my insignificant weight to the nose getting soaked.

Oh happy days.
There is one in the Museum.

Kip

markiemadman
1-Oct-10, 09:18 PM
The only reason in our experience for the gear box to overheat would be an out of balance fan or water in the gear box.
Your craft may have been modified as the craft was very movable rotating with a turning rate of about 4 seconds for 360 degrees .
It does sound as if your ballast system is not working.
If the craft was lightly laden ,the water ballast should be fully forward.
My dad was chief engineer for sealand.

KipMac
2-Oct-10, 11:58 AM
The one I worked on needed 4 men on the front quarter and another 4 on the opposite rear to get it to turn around on the hard standing.
I also had a rather worrying moment when on wet mud it travelled over a quarter of a mile and would not stop. That was interesting with a bridge in sight.
The craft did eventually go on to be filmed by the BBC who put it to music as it pirouetted on the water after it was modified.
If any one can find that film I would be grateful. I guess it was in the early eighties.

Kip

markiemadman
2-Oct-10, 06:17 PM
Was the steering gear working,did it have two rudder blades per side.
Do you know the craft number.
Many thanks
mark

KipMac
2-Oct-10, 06:23 PM
I can't remember the numbers of rudders and yes they were working but if I come across any info I will let you know.
The craft was owned by an Eric Grundy who sold it and went to Spain.

Kip

markiemadman
3-Oct-10, 02:15 PM
HI,
I HAVE JUST UPLOADED TWO MORE VIDEO SLIDE SHOWS,ONE IS MORE WITH SEALANDS
PRODUCTION AND TESTING AT THEIR BUSIEST TIMES. ALBUM 3.
THE OTHER SLIDE SHOW IS SEALANDS FINEST DASH 6.
SEALAND BECAME TROPIMERE IN LATE 1976 AND SOLD A DASH 6 TO THE GULF,
IT SAW SERVICE IN BAHRAIN.
HERE IS THE LINK www.youtube.com/user/Markiemadman