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Search: Posts Made By: Jeremy_H
Showing results 1 to 25 of 138
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Forum: RC Airboats
10-12-2014, 02:39 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yeah sure Marek, no problem. You want high...

Yeah sure Marek, no problem. You want high performance, I am not chasing that, my interest is novelty, something different. I want things to perform correctly, but not necessarily at the edges of...
Forum: RC Airboats
10-11-2014, 04:11 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

I would just use two servos, the cam means fewer...

I would just use two servos, the cam means fewer problem with mechanical setting of servos, with the radio rig I'm using it's easy to accommodate..

Anyway, an interesting diversion. I'm having a...
Forum: RC Airboats
10-10-2014, 05:32 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

That's actually a good way of doing it. With a...

That's actually a good way of doing it. With a piano hinge type arrangement the halves would pivot on the same centreline. There would be a mechanical way of actuating it too which would negate the...
Forum: RC Airboats
10-08-2014, 11:58 AM
Replies: 221
Views: 14,296
Posted By Jeremy_H

I'd like to sound you out about my rudder idea....

I'd like to sound you out about my rudder idea. What's in my head is two rudders right next to each other, as close as they can be. Each has own servo, in normal operation they move together, using...
Forum: RC Airboats
10-07-2014, 02:48 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yeah for sure, only one way to find out I guess....

Yeah for sure, only one way to find out I guess. When I run in my engine I'll stick a pusher on and see what happens, would be good to know that anyway.

That prop on the Russian boat is a...
Forum: RC Airboats
10-05-2014, 03:51 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Then again..... ...

Then again.....

https://www.youtube.com/watch?v=T46purH0aUM
Forum: RC Airboats
10-05-2014, 03:21 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Cheers arc. OS four strokes are really nice from...

Cheers arc. OS four strokes are really nice from what I understand. So far I've only seen thumpers on boogie board boats, but I see mine heading in the direction of a CAT, maybe something like this:...
Forum: RC Airboats
10-05-2014, 01:54 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Hehe, that Saito engine is lovely :cool:. It...

Hehe, that Saito engine is lovely :cool:. It would need to be a very large RC airboat, it needs the same size prop as this:
...
Forum: RC Airboats
10-05-2014, 06:09 AM
Replies: 221
Views: 14,296
Posted By Jeremy_H

The 32 is the front engine, it's the one that is...

The 32 is the front engine, it's the one that is in effect a normal installation, and not impacted by the second engine.

However, it's academic now as I sussed it.

After I posted here last...
Forum: RC Airboats
10-04-2014, 01:58 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

The tanks in the pic are at carb height. so the...

The tanks in the pic are at carb height. so the close one is right next to the pump, it does look like they are bigger tanks but lower in that image.

Fuel foaming is nowhere on the cards here....
Forum: RC Airboats
10-03-2014, 03:55 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Fuel filters arrived so nearly ready for some...

Fuel filters arrived so nearly ready for some runs, just got to bolt things down fully.

For now I've temporarily mounted one temperature and one tacho sensor. The rig will only take one tacho...
Forum: RC Airboats
10-01-2014, 11:58 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yes it's the throttle servos and that's their...

Yes it's the throttle servos and that's their position. It's not plugs, they are sealed strain reliefs for these truly waterproof servos. Many claim waterproof servos which simply aren't, these are...
Forum: RC Airboats
10-01-2014, 02:54 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

The pressure take off's proved to be easy, I just...

The pressure take off's proved to be easy, I just used a first tap to cut an undersized thread, some Loctite pipe thread sealant and an o ring on each went in and tightened firm.

I've mounted the...
Forum: RC Airboats
09-29-2014, 02:53 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yes the blue parts are the pumps. They've...

Yes the blue parts are the pumps. They've arrived, so here's the actual things:

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2036123

They work on a pulse principle, which is...
Forum: RC Airboats
09-28-2014, 03:33 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Here you go: ...

Here you go:

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2035676
Forum: RC Airboats
09-28-2014, 01:22 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Ok mate, workshop time has all been paying work...

Ok mate, workshop time has all been paying work again, but I've been working on the fuel system.
The idea of a false air intake was nagging at me, so I've revisited the fuelling arrangements and...
Forum: RC Airboats
09-19-2014, 03:02 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Made a start on the service tubes. A bit of...

Made a start on the service tubes. A bit of thinking to do before finalising though, depending on where the rudder and possible rear wing servos go.

When thinking about the need to seal the mass...
Forum: RC Airboats
09-19-2014, 06:58 AM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yes. One of the bits of unfinished business with...

Yes. One of the bits of unfinished business with the in line twin double boost idea is that it's tricky to tune the rear engine. In essence the rear engine can only be done with the front running,...
Forum: RC Airboats
09-18-2014, 03:37 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Shaped the deck front and added the sponson tops...

Shaped the deck front and added the sponson tops this evening.
Before final shaping the topsides I'll be flipping it over to fit service tubes to run back to the pylon area. It's quite a list to...
Forum: RC Airboats
09-18-2014, 09:46 AM
Replies: 221
Views: 14,296
Posted By Jeremy_H

The PM was there but I had no notification, so...

The PM was there but I had no notification, so might have dropped that ball when answering other folks messages, done now.

This prop thing is sort of counter intuitive, the only way to really get...
Forum: RC Airboats
09-17-2014, 11:56 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Check airflow through propellers, you may be...

Check airflow through propellers, you may be surprised, the airflow into the prop is largely passive until a slight pressure drop just before the prop.
Forum: RC Airboats
09-17-2014, 02:45 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

I've shaped a concave recess into the rear of the...

I've shaped a concave recess into the rear of the deck before adding the next layer of foam:

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2033079

Whilst I was watching epoxy dry...
Forum: RC Airboats
09-16-2014, 03:09 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Yeah there's no ply on the foam from here. Think...

Yeah there's no ply on the foam from here. Think of it as a GRP moulding out of a mould like any other RC boat, which you'd then partially fill with foam for capsize buoyancy, the moulding has the...
Forum: RC Airboats
09-15-2014, 03:03 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Sheeting will be epoxy/glass with CF stiffening...

Sheeting will be epoxy/glass with CF stiffening where appropriate, the CF will be structural only, no cosmetic stuff on this one.
The ply is simply Gaboon Marine, it's light, but far more flexible...
Forum: RC Airboats
09-14-2014, 02:07 PM
Replies: 221
Views: 14,296
Posted By Jeremy_H

Here's a better pic of the Twin alongside the...

Here's a better pic of the Twin alongside the SI3:

http://www.rcuniverse.com/forum/attachment.php?attachmentid=2031906

And some of progress on the Twin itself. Here the pieces added last were...
Showing results 1 to 25 of 138
 
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