Re: [Flightgear-devel] Antonov AN-2 ready for download

[Yurik V. N. <yu...@me...>]

=F7 =D3=CF=CF=C2=DD=C5=CE=C9=C9 =CF=D4 8 =EE=CF=D1=C2=D2=D8 2006 05:42 Didi=
er Fabert =CE=C1=D0=C9=D3=C1=CC(a):
> > But I have a problem. I am not able to start the engine. I put on
> > electric main-switch, magnetos to 1+2, fuel up, starter switch on, other
> > starter switch short to the left and then to right (I hold it on the
> > right), the propeller turns some seconds and then: silence...
> > Any one else with this problem?
>
> same thing here, perhaps an explaination with some screenshots can help u=
s.
>
> aircraft engine looks like my engine car : ignition problem :-)

Well, I suppose about this trouble. It's result of bad help...

Real AN-2 equipped inertial starter. It allow to start engine even main=20
battery full discharged - there is handle for spinup wlywheel of starter=20
manually, from cargo cabin. Usually, for start engine, flywheel of starter=
=20
spinned of electric engine.

Main procedure of use inertial starter this:

1. Turn on electrical circuit for supply electrical engine of starter: main=
=20
battery switch & starter switch. Red "generator failure" lamp will on, like=
 a=20
car;

2. Spinup of wlywheel of starter; for this, turn starter selector to left=20
position and hold it _until wlywheel will spinned_. While wheel spinning,=20
consumable current will decreasing from max value (see VA-3 instrument) to=
=20
value around zero, when wlywheel will spin enough.  It take around 7 sec; y=
ou=20
will hear sound of spinned wlywheel.
=20
3. Apply spinned flywheel to engine crankshaft: set starter selector to rig=
ht=20
position and hold it _until engine started_. It take several second; see on=
=20
tachometer instrument TE-48. When engine achieved above 550 rpm, release=20
selector and turn off starter switch.

There is one problem around it. Power of starter not enough for spin engine=
=20
shaft with big propeller - as I understand, this is JSBsim limitation. I re=
ad=20
about it in devel list, but fix not ready yet. Cause this limitation,=20
inertial starter may work unstable.

You may discard inertial started at all - go to an2-set.xml and comment=20
binding of key 32:


 <input>
    <keyboard>
		 <!--Unbind spacebar & print help about starter procedure-->
comment here:
<!--
	 <key n=3D"32">
			 <name>spacebar</name>
			 <desc>Show help about starter</desc>
			 <binding n=3D"0">
				 <command>nasal</command>
				 <script>an2.starter_help()</script>
			 </binding>
	 </key>
=2D->

It allow you crank engine by press spacebar, as default.


=2D-=20
Wbr, Yurik