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[VC]

This was our second project - the Griffon 2000. Though we were sceptical, the performance was rather satisfactory. Loosely modelled around Mark Porter's plans, a 4400kv brushless was used as the lifter and a 2900kv provided the thrust. AUW including ballast was 3500 grams.

Would request all to watch the video on tube and leave some comments.

http://www.youtube.com/watch?v=Ds7Sf9SlU9g


Regards.

[pugwash]

VC Very good videos - It looks very responsive - Have you got any photographs of the actual build.
Geoff

[VC]

Dear Geoff, I do have some build stage pictures and shall try to upload them in time.

Thanks and Regards.

[ben hall]

whose going to be the first person to make a sit in hover craft

[Roadrunner]

I answered thats one already....http://www.modelboatmayhem.co.uk/forum/index.php?topic=28546.msg284003#msg284003

[ben hall]

i wasnt sure wich one it would be posted in so i did it in both

[triumphjon]

very nice model , how ,and what have you made the skirt from ?

[VC]

Thanks Triumphjon! The skirt was made out of Rip Stop material. This is not readily available where I stay so we bought a car cover and took it apart. Worked out to be a rather inexpensive deal @ $ 20 for the cover which will yield 4 skirts for Hovercrafts measuring 1000mm X 500 mm.

Regards.

[VC]

The Thrust Duct (emblazoned with the Unit No. 236) was made out of a plastic Waste basket! The thin plastic was reinforced with strips of pine wood and plaster of paris and then sanded to the correct profile.

[hover tim]

Very nice model you have there seems to go very well i was the person that commented on the sound i think itsdue to the power of the motor but that siad if you have a bigger motor you can experiment wiht different prop pitches I would also recomend a coat of silicone spray on the skirt this helps getting over the hump as the water cant stick to silicone

[VC]

Hi Tim!

Oh it was you who commented on Youtube? Well thanks again.

The Silicone spray seems to be a great idea but I wonder if I will find it here.

I need some help and perhaps you are the best person for it. You see for the Griffon 8000's loading bay, I need to device a mechanism to lower and raise the ramp gradually. I've though about a worm gear drive. Would you happen to have a simpler idea that I may use?

Regards,

VC

[gregk9]

Have you tried using the "l;anding gear switch" option on your transmitter? I use this on the lifting bridge on my pusher tug with great effect and is reasonably slow enough to work ok.
it saves the expense of a "servo morph" unit to slow the movement down.

[VC]

Gregk 9,

Thanks a ton! Must try that out. Though, as I am using the rather economical  Hobby King Tx/Rx units, I feel that the undercarriage flip switch will turn out to be non proportional.

Regards,

VC

[gregk9]

My own 2.4 ghz set is only a "planet 5 chnl2 set, so not the most expensice either, plus you can add as many recievers as you want for a mere £13 - 15 each, so the transmitter gets loads of changeability so to speak.

To be honest, I use the planet set more than my more expensive futaba 6 chnl system on another boat.

[VC]

  Thanks for the reassurance! I thought I was a no brainer for doing that. I too use my HK sets more than my Futaba or Hi Tec sets.

[hover tim]

hello

sorry for the delay

if you are thining about putting a ramp on a model hovercaft the i would use hinges and put a small servo horn fitted to the bottom of the ramp and then use a snake that conected to the servo further away the servo horn would then be hidden when the skirt is attched as for the channel to use its worth using your expensive set and using the landing gear you can get adapters for them so they become a musch larger switch

[ben hall]

what we use on landing craft are geard motor with a wire attached to the ramp