From: lew@4ccvw48.scg.hac.com (Lyman Lew)
Newsgroups: rec.models.rc
Subject: Re: A few questions from a beginner.
Date: 7 Jan 93 02:01:29 GMT
Reply-To: lew@4ccvw48.UUCP (Lyman Lew)
Organization: Hughes Aircraft Co., El Segundo, CA

In article <1993Jan6.203502.6862@koko.csustan.edu> james@koko.csustan.edu (Jonas Grumpy) writes:
>Hi I am new to this hobby. I have a few questions that were not answered
>by the FAQ.
>
>	1) When I see a gas plane advertised as 3 channel. Do these
>	include: elevator,rudder&throttle. 
>
Usually that is a typical setup for a three channel.


>	2) If the plane has no aileron control. And very little or
>	   no dihedral. Can it still turn?

It will 'turn' but with great difficulty. A turn is really a combination
of roll and pitch using the rudder first and elevator last. A rudder/elevator 
airplane with large dihedral will roll and yaw when rudder is used. With 
decresing dihedral comes decreasing roll capability.

>	3) I have decided on an engine size of .10. How much Nitro
>	should I buy my fuel with?

If it is a glow plug motor, about 10-15%. If it is a diesel, none.

>
>	4) How do these diesel engines get adjusted? You'd have
> 	to be VERY steady handed to get near that adjusting "T" 
>	 with the prop spinning 1" away!!
>
The screw on top of the head is the compression screw and that advances
or retard the ignition. The adjustment at the carburetor adjusts fuel
mixture in relation to air.

>	5) Will a diesel engine of a given disp put out more
>	  power?
>
Yes but at a lower rpm range. You would need a larger prop than a normal
glow plug motor to absorb the power it generates.

>	6) I have seen many ads for radios and have settled on
>	  a four channel from airtronics or futaba. What
>	do all the Nbl,nbf and all that stand for. If I 
>	buy a radio kit now with 3 servos can I add a 4th later
>	if I put it in a plane with aileron control? WITHOUT
> 	buying a new receiver? What is servo reverse? Whats the
>	pros and cons of AM vs FM. Are they disallowed in certain
>	areas? Can the servos be put in a glider?

I don't know what Nbl or nbf stands for. If a 4ch radio is purchase
with 3 servos, a forth can be added to receiver with no problem. A 
4ch radio will come with a 4ch/function receiver. Servo reversing 
allows the flyer to reverse the rotation of the servo electronically.
It's a nice feature to have. AM is more susceptible to interference
and metallic noise than FM. They are not recommended in highly populated
areas such as Los Angeles. My first radio was a 4 Channel AM Cirrus used
in a glider. The extra two servos were never used.

>
>	7) Do ailerons work 180deg out of sync or am I confusing
>	this with flaps.
>
I don't understand the question......

>	8) How do those hand held starters work? Do they just
>	interface on the nut/prop or do you have to have a cone
>	there?
Yes, they have a rubber cone that mates with the spinner. There is
a switch that is used to turn the starter which turns the engine 
over quickly. Soon as ignition occurs, the starter is removed.
>
>	9) Is balsa/wood construction the best for someone who contemplates
>	  many repairs due to crashes, or is foam/plastic better because
>	its stronger.
>

Yes, balsa is a lot easier to repair than foam/plastic. Foam/plastic are
not necessarily stronger, just more convenient and saves time.

>	Thats all for now. Thanks. If you want you could reply via
>	email then I will post the q's and a's or mail them
>	to the FAQ man.
>-- 
>C MYSIG  ASIG4U 1RADSIG 2BADSIG SIG U 2     U R SIG   1SIGDOG    ADOTSIG
> 				The above advice is not to be taken seriously!