| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1279.1 | Yes and yes... | BTOVT::VTLAKE::WHITE_R | | Wed Jan 02 1991 12:25 | 6 |
| The answer to both questions is yes. Use a liquid (water) cooled
engine and you can fully enclose it in a plastic hull with no problem.
With the proper gearing you can turn two or more screws with one
engine. I've seen a K&B 7.5 turn 3 with no problem. Hope this helps.
Robert
|
| 1279.2 | | DEPOT::BROWN | | Wed Jan 02 1991 13:43 | 6 |
|
Thank you for the reply Robert, thats just what I wanted to hear.
What (roughly) would be the expected speed out of a V hull that fully
loaded weighed 3-5 lbs. with whatever motor?
-Kendall
|
| 1279.3 | Depends upon the whatever... | BTOVT::VTLAKE::WHITE_R | | Thu Jan 03 1991 12:55 | 6 |
| The whatever motor will determine your top speed. The 7.5 K&B was
salvaged from a V hull that weighed 4 1/2 lbs. before it sank after
hitting the dock at about 13 knots (and she wasn't full throttle
according to the captain).
Robert
|
| 1279.4 | | AMTRAK::BROWN | | Thu Jan 03 1991 15:39 | 10 |
|
Thanks for the information Robert. I'm sending off for a Tower catalog
to browse through for specs and prices. I'm making a scale patrol
boat, it was originally the PT109 but I have made too many
modifications to call it that now. The liquid cooled gas motor is just
what I was looking for, fast with endurance.
I can't wait for spring time to come along for the maiden voyage!
-Kendall
|
| 1279.5 | | DEPOT::BROWN | | Fri Jan 04 1991 08:44 | 7 |
|
Ok, one more question....for now ;-) I want to conceal my antenna by
wrapping it up and around the mast head/radar tower that I installed
on the boat. Is this ok to do and can the antenna be too long? I
guess that's two questions!
-Kendall
|
| 1279.6 | Yes and No... | BTOVT::VTLAKE::WHITE_R | | Fri Jan 04 1991 12:14 | 10 |
| Whatever you do, DO NOT CUT your antennae or else your maiden voyage
could also turn out to be your last voyage. It's recommended to
extend your antennae as much as possible, but some people coil there
antennaes around a piece of cardboard and extend only a portion. This
works well in cars for racing. But in a plane or boat or any object
that you plan to run a good distance from you, I would not recommend
this. Maybe somebody else out there can provide more input to
disguising an antennae to add to the model's realism. Hope this helps.
Robert
|
| 1279.7 | This worked | GRANMA::WFIGANIAK | YEAH..GET THE RED ONE | Tue Jan 08 1991 09:27 | 3 |
| Try running the antenna wire around the inside of the hull just below
the deck. I did this on a model Wellcraft and it worked out just fine.
Good luck
|
| 1279.8 | Motor size? | MINDER::SWCA06::HESLOP | | Thu Sep 19 1991 08:49 | 8 |
| I'm planning to put an IC engine in a 36" glassfibre V hull I have. The
recommendations from the local hobby shops vary from a .40 glow to a
.61 glow motor.
Any comments on the motor sizes? Expected performance? What sort of
fuel consumption so I can decide on tank size?
Brian
|
| 1279.9 | | PFSVAX::MATSCHERZ | | Tue Sep 24 1991 12:20 | 15 |
| re.-.1
Any motor in the .40 to .6X range will give you more than adequate
performance. I have a .45 on a hydroplane (30 inches in length), and
will say that it you put too much motor on it, the back end of the boat
will pop up out of the water. I have heard of hydros running .65 K&Bs
going about 60mph or so. I would go with a 8 oz tank, that should give
you about a 20 min. run.
You will have some other concerns to address as well; you must keep
the water out of the flywheel area, also fresh air and exhaust must be
dealt with. I had more problems dealing with these things than the
actual installation of motor and servo setups.
Steve M..
|