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kimon
Topic Author
Posts: 252
Joined: Mon Nov 23, 2009 2:37 pm

Rope Start

Wed Feb 24, 2010 6:49 am

I only flew the Classic (Rope Start) 747s.
What is a Rope Start?
Many thanks!
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: Rope Start

Wed Feb 24, 2010 7:34 am

Quoting kimon (Thread starter):
What is a Rope Start?

Okay, you asked for it...  http://www.youtube.com/watch?v=NIht-1FZdd0

I tell you, some people on Youtube have no life...  
 
Fly2HMO
Posts: 7184
Joined: Sat Jan 24, 2004 12:14 pm

RE: Rope Start

Wed Feb 24, 2010 7:35 am



It's just a metaphor  
 
kl671
Posts: 122
Joined: Sat Jul 09, 2005 10:00 am

RE: Rope Start

Thu Feb 25, 2010 4:51 am

Quoting FLY2HMO (Reply 2):
It's just a metaphor

Not exactly just a metaphor. The Junkers Jumo 004B that powered the ME 262 had a rope starter similar to your photo. Pulling on the handle started a small piston engine that provided the power to start the engine. The handle can be clearly seen on the attached video.

http://www.youtube.com/watch?v=Q3usd6ZmM_k

I can confidently state that this starter system has never been used on a 747.

[Edited 2010-02-24 20:52:51]
 
DaBuzzard
Posts: 66
Joined: Fri Sep 07, 2007 6:11 am

RE: Rope Start

Thu Feb 25, 2010 5:31 pm

Pretty sure it wouldn't work on a 747 but you can pull start a DC3  http://www.douglasdc3.com/prop/prop.htm
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: Rope Start

Thu Feb 25, 2010 9:12 pm

Quoting DaBuzzard (Reply 4):
Pretty sure it wouldn't work on a 747 but you can pull start a DC3 http://www.douglasdc3.com/prop/prop.htm

Man, talk about a goofy procedure. Where did that come from, an old Air Force C-47 manual or something?   
 
DaBuzzard
Posts: 66
Joined: Fri Sep 07, 2007 6:11 am

RE: Rope Start

Thu Feb 25, 2010 10:46 pm

Quoting KELPkid (Reply 5):
Man, talk about a goofy procedure. Where did that come from, an old Air Force C-47 manual or something?

Not really sure of the origins of the procedure but I have heard "Old Pilots Tales" of replacing the 3 people with a pickup......google turned up the link I posted.

Don't think I would want to be around if the motor fired up and the rope got snagged  Wow!
 
Fly2HMO
Posts: 7184
Joined: Sat Jan 24, 2004 12:14 pm

RE: Rope Start

Fri Feb 26, 2010 3:10 am

Quoting KL671 (Reply 3):
The Junkers Jumo 004B that powered the ME 262 had a rope starter similar to your photo.

Wow that's news to me. I thought they were started with an air cart of sorts.   

Quoting KL671 (Reply 3):


I can confidently state that this starter system has never been used on a 747.

Naaaaaaaaah really?

Threads like these are why I love tech/ops 
 
User avatar
HAWK21M
Posts: 30175
Joined: Fri Jan 05, 2001 10:05 pm

RE: Rope Start

Fri Feb 26, 2010 8:53 am

Are you sure a B747 can be rope started?
regds
MEL....
 
SNAFlyboy
Posts: 62
Joined: Thu Oct 18, 2007 5:42 pm

RE: Rope Start

Fri Feb 26, 2010 10:36 am

I'm a bit too young to have first-hand experience, but I've heard those rope-start airplanes were a real hassle to get going. After you finally got the thing to start, you'd have to wait until the pressure built up enough to power the steam gauges...

What a hassle. 

~SNAFlyboy
 
KELPkid
Posts: 5247
Joined: Wed Nov 02, 2005 5:33 am

RE: Rope Start

Fri Feb 26, 2010 9:35 pm

Quoting SNAFlyboy (Reply 9):
I'm a bit too young to have first-hand experience, but I've heard those rope-start airplanes were a real hassle to get going. After you finally got the thing to start, you'd have to wait until the pressure built up enough to power the steam gauges...

Well, if it's anything like my rope started lawn care equipment, it can be a bit tempremental when the fuel is old, the temperature is cold, or you flub up priming it before pulling the rope (either too little or too much primer). Heck, my Sears wire trimmer has about a 10 step checklist-like starting procedure printed right on the gas tank. If you follow it to the T, you will (eventually) get a running weed whacker   It isn't just pull the rope and go, unfortunately...almost reminds me of starting a radial, counting prop blades, turning primers off, adjusting choke plates...at least the weed whacker doesn't have a mixture knob to dink with.
 
bri2k1
Posts: 952
Joined: Sun Dec 19, 2004 4:13 am

RE: Rope Start

Sat Feb 27, 2010 5:13 pm

Quoting KELPkid (Reply 10):

We're off topic anyway, what the hell. That has little to do with it being a rope. Maybe being a short rope. But you never prime a jet engine anyway. In fact, you do the opposite: bring it to operating RPM without fuel, and only then introduce any. It has to do with the difference in the way the engines modulate entropy. The Rankine cycle and the Jet cycle are very different thermodynamic processes.

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