When someone asks you to demonstrate the Doppler effect!

Really nice video. I run this class back in USSR in 80s and 90s. People who was doing this hobby will know me very well-I was in national team for 5 years.

@Toscanto

2 жыл бұрын

Quel est ton nom please....?

These are more like airboats where we live. Hydroplanes to us use water born propulsion. This one has a similar engine but it’s on a pedestal pushing an airborne propeller. That just like airboats in my country. Very cool engineering though!! Damn that’s really fast!!

Thanks for making this video. Cheers from Siberia.

Impresionante, técnicamente hermoso!!!!!!!desde Argentina un técnico ,hobbista te felicita !!!!!!

Those things look damn wicked! Subbed.

There's a lot of hobbyist that just show the model sixty or more feet away and you can't see shiit but a bluer, now the way you show the integral parts UP CLOSE now that's neat!

Too cool! Dang that’s fast!

Beautiful model engineering

I reached the end of the internet for today! Good night!

Pourquoi vous n'utilisez pas the single - blade ... comme en F2.A ... THANK YOU .. bravo à vous pour ces performances...!

Crazy Great!

Merveilleuse mécanique qui hurle à la mort ....!! Des cellules en matériaux carbone , Titan , du travail de motoristes ingénieurs avec des moteurs de fabrication artisanale reconnu un PROFI RUSSE.... !!utilisé aussi en vitesse F2A bravo aces grands modéliste qui recherchent la performance maximale

Super 👍👍👍👍👍

Wow!!!

Is there a rule regarding how many times it must touch the water per lap etc ?

Are there any weight restrictions ?

Is there anything in the rules about having to touch the water during the run?

Круто

Where is the kitset available from please?

Why are you using a 2-bladed propellor, as opposed to the 1-bladed propellors used in F2A?

@weatheranddarkness

2 жыл бұрын

1 bladed? What would the benefit of that be?

How long do the engines last running at those speeds (rpm)?

@rickyneal6758

3 жыл бұрын

These engines do not have a ring, they use a high silicone content aluminium piston in side a hard chrome plated brass cylinder bore, the bore is slightly tapered towards TDC, this creates the compression seal. they run on methanol with 20% caster oil and you get about 2-3 hours of total running time before the piston/cylinder wears out to the point that the performance drops off but they only every run for 15-50 seconds at a time so you can normally do a full season until the engine needs a refresh.

@Toscanto

2 жыл бұрын

Les moteurs tiennent normalement au top de la performances sur environ 2 à 3 compétitions après il faut refaire les ensembles chemises pistons et roulements de vilebrequins les pièces qui souffrent le plus ... Et puis y'a aussi les imprévus casse de bielle , sablage des culasses à cause des bougies qui grillent à cause souvent de carburation trop pauvre. Qui occasionne une surchauffe . De toute façon c"est une catégories difficile comme le F .2 .A pour les modelistes avertis et surtout motoristes

Does tethered hydro have the same "no nitro" rule as tether car racing?

@rickyneal6758

2 жыл бұрын

Yeah, exactly the same fuel 20% castor oil, 80% methanol. They generally use the same engines for a lot of the classes as well

@chrisegan7537

2 жыл бұрын

@@rickyneal6758 Do some people run diesels?

@weatheranddarkness

2 жыл бұрын

@@rickyneal6758 is that to keep max power within a reasonable range?

@rickyneal6758

2 жыл бұрын

@@weatheranddarkness no not really, its for a mixture of reasons, one to have an international control fuel, two, once optimised for no nitro these engines tend to rev higher and three, it’s historically what has alway been used

Oh yhea apocalypse is hereeeeeee

I don't think that hydroplane touched the water once.

I was taking part in f2a comp, years ago. All that so called hobby is master of engineering. Now is only drones:(

@weatheranddarkness

2 жыл бұрын

Different sets of engineering skills. Drones (multi rotor ones particularly) lend themselves much better to the kind of mind that gets into electrical and software engineering. These days it's things like autopilots, and LiDar sensors and artificial stability boards and electronic speed controls where so much of the work is done. I do tend to prefer machines with this kind of pure mechanical elegance myself.

The propeller should be IN the water.

@fpspace22

29 күн бұрын

Prop in water is inefficient at high speed

what did I just see?

Not really a boat ..water prop driven that is...why stop there just put hydrogen rocket engine on it ??

@compfox

3 жыл бұрын

Yes. It is a hydroplane.

@weatheranddarkness

2 жыл бұрын

how is it not a boat? Why do people keep coming up with these kinds of gatekeeping? A dhow is one of the most gorgeous things ever constructed by a human, but Spirit of Australia is just as much a boat. Are you one of those people that gatekeeper about what constitutes sailing too?