True, but my Robbe Seawolf has no functional sailplanes.
I have seen a Moebius Seaview with no functional sailplanes.
I have been told that my functional bow planes on my Robbe SeaWolf were not required.
I think the real question is, what is required to have a sub that drives properly?
That brings up the need for electronic stabilizers like an ADF.
I am a newbie. I am interested in all this physics.
Mr Merriman has pointed out several issues with rc subs that I initially never conceived....they can be a beautch to control. That without electronic stabilizers, its almost impossible not to porpoise after certain speeds.
That came as a shock at first, then I began to mentally work my way through this based on my flying experience with park flyers and windy days....and I would like to sail on really windy/wavey days with my subs.
So scale speeds, water conditions....all need to be asked and answered for the individual, is that not true? If I run at scale speeds in calm water, will I need a ADF?
On the use of Sailplanes, I am told that to control a subs depth just via sailplanes is the goal on a boat that has all the functional surfaces, bow, stern, sail.
How well will a Sub like my Robbe Seawolf function on just stern controls...from what I see, really well for that particular design but I believe that a ADF is required for this sub past a certain speed. I will find out this spring with her maiden voyage.....
Then the explanations of Mr Merriman on the X tail vs Cruciform tail and my own interest in the Seaview with a half X tail with those Cadillac fins and those Manta fins which cause nose dive. Of course that has nothing to do with the orignal question, but thoughts I have had recently as a newbie and asking questions of Dear Mr Merriman.