[MBZ] Fw: OT - Genset - MD-3

2006-01-19 Thread wilton strickland

- Original Message -
From: wilton strickland [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, January 18, 2006 10:38 PM
Subject: OT - Genset - MD-3


 Before I was commissioned in '60, I was a maintenance crew chief on B-47s.
 I operated many MD-3s to provide power to the aircraft sitting on the
ramp.
 During nearly 14 yrs flying B-52s, I also saw hundreds of MD-3s providing
 ground power to B-52s.  I'm sure they supplied ground power to many other
 types of aircraft, too.  Air Force  must have had thousands of them.

 Wilton, LtCol, USAF, Ret.





[MBZ] Fw: OT - Genset - MD-3

2006-01-19 Thread wilton strickland

- Original Message -
From: wilton strickland [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, January 19, 2006 10:20 AM
Subject: OT - Genset - MD-3


 MD-3's I saw in USAF were gas driven; must have been air cooled - don't
 remember ever seeing a radiator or evidefnce of a leak.  Output = 28VDC,
 60Hz 120/240AC  400Hz voltage I don't remember.  Units were abt 4 1/2 ft
 tall, 5 1/2 ft long, 5 ft wide.  4 wheels - 2 in back, 2 in frnt in middle
 betwn base of tongue/tow bar.  Towed to site on ramp; One could hold end
of
 tow bar and work elec switch on the bar to reposition the unit on ramp.
 Frnt wheels were elec driven.

 Wilton





Re: [MBZ] Fw: OT - Genset - MD-3

2006-01-19 Thread JFreezn
 
In a message dated 1/19/2006 9:25:59 A.M. US Mountain Standard Time,  
[EMAIL PROTECTED] writes:

As does  this one, I think.  So my real question is whether or
not the 60 Hz  machine is synchronous or induction.  Induction
machines are much  harder to turn into generators.  And of course
the presence of extra  shaft length will be crucial as well.
The 60 Hz machine is 220/440, so  using it as a 120/240 generator
will be interesting as  well.



Jim,
 
The 125 KVA ones I had in the data center were induction start and  
transferred to syncronous run. Better ride  through.  Made by GE and some 
big 
German firm.  

Jim  Friesen
Phoenix AZ
79 300SD, 262 K miles 
98 ML 320, 140 K  miles