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

Bell/Lockheed and Sikorsky/Boeing Selected for JMR-TD

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

Bell/Lockheed and Sikorsky/Boeing Selected for JMR-TD

Old 26th Dec 2018, 18:34
  #41 (permalink)  
 
Join Date: Dec 2000
Location: Arlington, Tx. US
Posts: 532
Back Door,

Sexy? It is definitely a two bagger.
The Sultan is online now  
Old 26th Dec 2018, 18:43
  #42 (permalink)  
 
Join Date: Mar 2005
Location: Poplar Grove, IL, USA
Age: 52
Posts: 831
Originally Posted by CTR View Post
Zoom in on the photos main landing gear, it does not look real.
What looks unreal about it?

Originally Posted by Back door
Look at the tailwheel housing (dorsal fin??)and the rear pusher prop proximity to the ground, wow. With my untrained eye any nose high attitude on touchdown (running landing, off level landing) and there's gonna be a nasty surprise for the crew up front.
Looks very much like the X2 to me. I would assume the upward taper on the vertical fin represents the flare angle in an auto you can achieve without hitting the prop.
IFMU is online now  
Old 26th Dec 2018, 18:47
  #43 (permalink)  
CTR
 
Join Date: Oct 2007
Location: Texas
Posts: 94
Originally Posted by SplineDrive View Post
The landing gear look real enough to me, but they clearly don't have the complex articulation of a AW609 or S-97... having a wide fuselage makes the gear simpler.!
Take a closer look at the main gear attachment to the fuselage. At least to me the structure appears to be a steel weldment cross tube outside of moldline with no provisions for retraction. The wheel appears to be an industrial unit like the tie down rings. Finally, when have you ever seen retractable landing gear painted black.



Last edited by CTR; 26th Dec 2018 at 18:59.
CTR is offline  
Old 26th Dec 2018, 19:40
  #44 (permalink)  
 
Join Date: May 2004
Location: Tax-land.
Posts: 853
Originally Posted by The Sultan View Post
Back Door,

Sexy? It is definitely a two bagger.
Where’s the emoticon for the pop corn?
tottigol is offline  
Old 26th Dec 2018, 22:02
  #45 (permalink)  
 
Join Date: Apr 2008
Location: Maryland, USA
Posts: 112
The window and door placement and the bulkhead that's visible in #26 give the appearance that the entire cabin is forward of the CG. I assume that's not true, but it looks odd.
Vzlet is offline  
Old 28th Dec 2018, 04:33
  #46 (permalink)  
CTR
 
Join Date: Oct 2007
Location: Texas
Posts: 94
No Pilot Doors?

No doors for the pilots? I don’t see any sign of door handles or hinges. Just a piano hinge for the window to swing out for emergency egress. So normal ingress/egress is between the seats as on a CH-53?
CTR is offline  
Old 2nd Jan 2019, 15:42
  #47 (permalink)  
Thread Starter
 
Join Date: Nov 2010
Location: Earth
Posts: 598
Originally Posted by Vzlet View Post
The window and door placement and the bulkhead that's visible in #26 give the appearance that the entire cabin is forward of the CG. I assume that's not true, but it looks odd.
Yes this seems to be the case. We discussed here it a few years ago S97 Raider
SansAnhedral is offline  
Old 2nd Jan 2019, 15:54
  #48 (permalink)  
CTR
 
Join Date: Oct 2007
Location: Texas
Posts: 94
Scale Flying Model of SB>1 Defiant


A scale RC model of the Sikorsk/Boeing Defiant is available.

CTR is offline  
Old 2nd Jan 2019, 19:09
  #49 (permalink)  
Thread Starter
 
Join Date: Nov 2010
Location: Earth
Posts: 598
They even got the paint scheme down pat
SansAnhedral is offline  
Old 2nd Jan 2019, 19:37
  #50 (permalink)  
 
Join Date: Jul 1999
Location: Warrington, UK
Posts: 3,341
They even got the paint scheme down pat
Not quite. Toothless has half a red tail:
MightyGem is offline  
Old 3rd Jan 2019, 10:49
  #51 (permalink)  
 
Join Date: Mar 2016
Location: Underneath the Radar
Posts: 96
And there is another contender.


AVX Aircraft and L3 Team up..

AVX Aircraft, L3 to bid for US Army Future Attack Reconnaissance Aircraft requirement - Australian Aviation
rrekn is offline  
Old 3rd Jan 2019, 17:41
  #52 (permalink)  
 
Join Date: Jul 2002
Location: UK
Posts: 2,688
Originally Posted by CTR View Post
A scale RC model of the Sikorsk/Boeing Defiant is available.
Genius.
Bravo73 is offline  
Old 10th Jan 2019, 06:55
  #53 (permalink)  
 
Join Date: Aug 2008
Location: FJGD
Age: 44
Posts: 5
I'd like to see if this is a rugged helicopter. The Main shaft and rotorhead looks quite beefy and durable
SASD209 is offline  
Old 10th Jan 2019, 12:15
  #54 (permalink)  
CTR
 
Join Date: Oct 2007
Location: Texas
Posts: 94
Rigid Rotor Requirements

Originally Posted by SASD209 View Post
I'd like to see if this is a rugged helicopter. The Main shaft and rotorhead looks quite beefy and durable
Unlike conventional helicopters the Defiant incorporates a rigid rotor (no flapping hinge). This drives tremendous loads into the mast. Just hope is beefy enough for fatigue life.

The big diameter also allows space to run the controls internally for reduced drag.

Any updates for when first flight is planned?
CTR is offline  
Old 10th Jan 2019, 15:14
  #55 (permalink)  
Thread Starter
 
Join Date: Nov 2010
Location: Earth
Posts: 598
Originally Posted by CTR View Post


Take a closer look at the main gear attachment to the fuselage. At least to me the structure appears to be a steel weldment cross tube outside of moldline with no provisions for retraction. The wheel appears to be an industrial unit like the tie down rings. Finally, when have you ever seen retractable landing gear painted black.


It does look a little different than what you can see on the renderings from the promo videos (note reflective ground lets you see more detail)

SansAnhedral is offline  
Old 12th Jan 2019, 17:22
  #56 (permalink)  
Thread Starter
 
Join Date: Nov 2010
Location: Earth
Posts: 598
It lives! We now have a pretty exact milestone to compare between the programs. V280 first turned rotors in mid September 2017.


Anyone else think the prop might be getting a little cooked?
SansAnhedral is offline  
Old 13th Jan 2019, 00:03
  #57 (permalink)  
 
Join Date: Mar 2005
Location: Poplar Grove, IL, USA
Age: 52
Posts: 831
Very cool! I had seen the video a few days ago but wasn't sure if it was publicly released. I bet the prop is fine based on what we saw on X2.
IFMU is online now  
Old 25th Jan 2019, 08:35
  #58 (permalink)  
CTR
 
Join Date: Oct 2007
Location: Texas
Posts: 94
Bell V-280 Valor Achieves Key Milestone: Forward Flight at 280 Knots

Bell V-280 Valor Achieves Key Milestone: Forward Flight at 280 Knots!


https://www.rotorandwing.com/2019/01...ght-280-knots/

CTR is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.