Go Back  PPRuNe Forums > Aircrew Forums > Rotorheads
Reload this Page >

MD6XX? Sighting of MD600 with four blade T/R

Wikiposts
Search
Rotorheads A haven for helicopter professionals to discuss the things that affect them

MD6XX? Sighting of MD600 with four blade T/R

Thread Tools
 
Search this Thread
 
Old 23rd Feb 2017, 23:30
  #1 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: The Alps
Posts: 3,163
Received 101 Likes on 54 Posts
MD6XX? Sighting of MD600 with four blade T/R

Sighting of MD600 with four blade tail rotor (photo courtesy of Heliweb sources ) at MDH Falcon Field which has led speculation this could be the envisaged MD6XX

cheers


Last edited by chopper2004; 23rd Feb 2017 at 23:31. Reason: Title change
chopper2004 is offline  
Old 24th Feb 2017, 02:13
  #2 (permalink)  
 
Join Date: Dec 2008
Location: Top of the World
Posts: 2,191
Likes: 0
Received 25 Likes on 25 Posts
WoW.....is this for real?
Vertical Freedom is offline  
Old 24th Feb 2017, 06:26
  #3 (permalink)  
 
Join Date: Aug 2000
Posts: 1,949
Likes: 0
Received 44 Likes on 26 Posts
Well about time they put a tail rotor on a 600. Hopefully have hydraulics as well. If it flies like a 500 and hopefully about 300 lbs lighter without all the Notar rubbish on it they might actually have a half descent machine !
Hughes500 is online now  
Old 24th Feb 2017, 06:33
  #4 (permalink)  
 
Join Date: Aug 2003
Location: New Zealand
Posts: 35
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Hughes500
Well about time they put a tail rotor on a 600. Hopefully have hydraulics as well. If it flies like a 500 and hopefully about 300 lbs lighter without all the Notar rubbish on it they might actually have a half descent machine !
Be very hard pushed losing 300lbs converting NOTAR to tail rotor....adding hydraulics will add weight...the 600 is not an issue without hydraulics
ricksheli is offline  
Old 24th Feb 2017, 07:15
  #5 (permalink)  
 
Join Date: Aug 2000
Posts: 1,949
Likes: 0
Received 44 Likes on 26 Posts
well an average E model is 1690 lbs a 520 is around 2000 lbs. Agree about the weight of hydraulics, but if you are a 500 pilot fine for no hydraulics but for it to be a success it would need them
Hughes500 is online now  
Old 24th Feb 2017, 13:31
  #6 (permalink)  
 
Join Date: Dec 2007
Location: Ireland
Posts: 396
Received 1 Like on 1 Post
Going on the description from last year, it does look like the promised MD6XX. It also looks like that might be a mock-up. Boeing had a mock-up of their AH-6S Phoenix constructed in the mid-2000's for the ARH competition. The fuselage section in the photo might be the original mock-up while the tailboom and tail are presumably new. The shape of the tailboom is quite interesting and looks quite different from the standard 500-shape tailboom. It appears to be quite thicker and the end plates on the T-Tail are bigger too. Would the thicker tailboom allow the possible adoption of a tailboom strake? It will be interesting to see if this turns up at HAI.

500 Fan.

Last edited by 500 Fan; 24th Feb 2017 at 19:13.
500 Fan is offline  
Old 5th Mar 2017, 19:43
  #7 (permalink)  
 
Join Date: May 2003
Location: Yorkshire, UK
Posts: 151
Likes: 0
Received 0 Likes on 0 Posts
Seems that is the mock-up that will appear at Heli-Expo next week, here's a better pic from MD's Twitter account:
Attached Images
File Type: jpg
C6K1yIWWYAYNEAF.jpg (214.0 KB, 127 views)
GrantT is offline  
Old 5th Mar 2017, 20:48
  #8 (permalink)  
 
Join Date: Nov 2000
Location: USA - Mexico
Posts: 131
Received 0 Likes on 0 Posts
I hope it has more tail rotor authority than the 500E with the four bladed system.
Lama Bear is offline  
Old 10th Mar 2017, 15:53
  #9 (permalink)  
 
Join Date: Dec 2014
Location: Africa
Posts: 535
Received 9 Likes on 6 Posts
MD unveils MD 6XX concept helicopter

http://https://www.verticalmag.com/n...utm_content=V1
Rather than featuring the company’s famous NOTAR anti-torque technology, the MD 6XX has a more traditional four-bladed tail rotor and an extended composite tail boom, which MD claimed will deliver 40 percent more anti-torque power.
Is this an official admission that NOTAR doesn't work?
The use of the tail rotor is also said to provide a reduced noise signature.
And I thought noise reduction compared to TR-equipped choppers was a major advantage of the NOTAR...
Hot and Hi is offline  
Old 10th Mar 2017, 20:12
  #10 (permalink)  
 
Join Date: Dec 1999
Location: Waltham Abbey, Essex, UK
Age: 77
Posts: 1,174
Received 8 Likes on 4 Posts
Well I have seen the future and heard from Her Ladyship Lynn Tilton as her minions looked on adoringly but in all too apparent fear of upsetting her.....

So I have checked over my shoulder and it looks clear ... she aint watching.....

What we have been presented is another case of the Emperors New Clothes. The original MD600 was a rework of a Vietnam War design from the 1960s, a 3 +2 warhorse that worked well and still does - if you can get spares.

So the new design does away with the NOTAR and reverts to 'normal' but it makes no attempt to employ any of the knowledge of the last 30 years. Love it or hate it MDs NOTAR is about technology being used for directional control but all of that has been ignored. I know for a fact that BLR were sniffing around the MD booth looking to see if there was anything that might be a breach of an STC. There was nothing, not a strake and not an attempt to create some Coanda effect by sculpting the boom. This was a 500 tail [literally] screwed on the back of an old unloved and narrow 600 pod.

What a waste of an opportunity.

Still apparently there are plans to add 'automatically opening' electric side doors that were developed by a Tilton car factory. Seemed like a great idea.... on a car.
PANews is offline  
Old 11th Mar 2017, 15:18
  #11 (permalink)  
 
Join Date: Jul 2005
Location: UK
Posts: 915
Likes: 0
Received 1 Like on 1 Post
PA...oh you cynic. Can't wait to read your comments on the Bell F#CX U !
heli1 is offline  
Old 11th Mar 2017, 19:04
  #12 (permalink)  
 
Join Date: Dec 1999
Location: Waltham Abbey, Essex, UK
Age: 77
Posts: 1,174
Received 8 Likes on 4 Posts
Always the cynic.

Been lonely in Dallas without a fellow cynic......

Yes there are some words waiting in the wings on the Bell MAPL... sorry ... the super new thing....
PANews is offline  
Old 14th Mar 2017, 21:32
  #13 (permalink)  
 
Join Date: Oct 2011
Location: Las Vegas, NV
Age: 59
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
Been looking around at info on this newest airframe...does anyone know what engine MD has in mind? One of the Rolls-Royce M250 engines or a Honeywell HTS900 engine? Any thoughts?
VegasRobbiedvr is offline  
Old 15th Mar 2017, 11:38
  #14 (permalink)  
Thread Starter
 
Join Date: Feb 2006
Location: The Alps
Posts: 3,163
Received 101 Likes on 54 Posts
Heli Expo photos

Just finally manage to download all my photos from last week so here are my photos of the mock up lol.

cheers












chopper2004 is offline  
Old 15th Mar 2017, 14:02
  #15 (permalink)  
 
Join Date: Oct 2002
Location: 1 Dunghill Mansions, Putney
Posts: 1,797
Likes: 0
Received 1 Like on 1 Post
Originally Posted by VegasRobbiedvr
does anyone know what engine MD has in mind? One of the Rolls-Royce M250 engines or a Honeywell HTS900 engine?
They're sticking with the Allison 250, albeit in the latest C47E/3 form.

I/C
Ian Corrigible is offline  
Old 15th Mar 2017, 14:12
  #16 (permalink)  
 
Join Date: Dec 2015
Location: London
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by VegasRobbiedvr
Been looking around at info on this newest airframe...does anyone know what engine MD has in mind? One of the Rolls-Royce M250 engines or a Honeywell HTS900 engine? Any thoughts?
I was asking the same question, hoping to see a Honeywell... but looks like RR.

https://www.flightglobal.com/news/ar...-assau-422625/
Mattyt is offline  
Old 15th Mar 2017, 16:38
  #17 (permalink)  
 
Join Date: Dec 2007
Location: Ireland
Posts: 396
Received 1 Like on 1 Post
It will have the M250-C47E3 apparently. Not sure if this engine has been fitted to any other machines or if it has even been flight-tested yet.


MDHI reveals new MD 6XX platform | IHS Jane's 360
500 Fan is offline  
Old 15th Mar 2017, 17:30
  #18 (permalink)  
 
Join Date: Nov 2006
Location: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
Posts: 1,850
Received 57 Likes on 38 Posts
The M250-C47E was talked about at HAI Heli Expo back in 2013.

Destined for the MD540 - i.e. 6 bladed 530.

I first saw what became the 540 back in 1997.

It was in the "skunk works" hangar which we were not supposed to see.

They must have been flying the 600N rotor as a test vehicle maybe?

Having flown a 600 a fair bit I don't think it will be all that it is cracked up to be.

Starting with the same basic blade and just adding more is not so efficient or optimised.

Lipstick on a pig.
RVDT is offline  
Old 16th Mar 2017, 02:26
  #19 (permalink)  
 
Join Date: Oct 2007
Location: A better place.
Posts: 2,319
Received 24 Likes on 16 Posts
Why are the tail rotor blades offset like that?
tartare is offline  
Old 16th Mar 2017, 11:38
  #20 (permalink)  
 
Join Date: Oct 2002
Location: 1 Dunghill Mansions, Putney
Posts: 1,797
Likes: 0
Received 1 Like on 1 Post
Originally Posted by tartare
Why are the tail rotor blades offset like that?
Reduced noise (in common with its former stalemate, the AH-64). Some discussion on the topic in a previous MD500 thread here.

I/C
Ian Corrigible is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.