F-35 Joint Strike Fighter News, Videos and pics Thread

Brumby

Brumby

Major
TerraN_EmpirE said:
Brumby you jumped me on a edit i added.
if the weight of the Helmet were shifted to the Shoulders which is a much more efficient Load barring structure then the neck It might alleviate some of the issues. Of course Ejection is at G forces meaning that the weight of the Helmet is multiplied.
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As you pointed out due to G force, there are effectively only two practical solutions or combination thereof i.e. weight reduction or pressure dispersion.
 
TerraN_EmpirE

TerraN_EmpirE

Tyrant King
Here is the Issue I have with Weight reduction by means of a "Stripping helmet". first the helmet has to be stripped and presumably in a hurry every second used to strip it is a second in a dangerous situation.
second what do you do with those discarded pieces? anything floating in the cockpit is a potential deadly impact once the seat's Booster Rockets kick in and the Pilot is launched out the cockpit.
The Acceleration via the ejection is what is the potential killer it turned the weight of the helmet from a 5.1 pound state of the art display to a 62 pound cannon ball. it would also turn any floating modules in to potential risks. As the Pilot's body is propelled through them at the 12-14 Gzs of ejection. and Finally It means having to develop a totally new Helmet. Starting from scratch.

So I take a different view The heart of the recent issues is the F35 HMDS gen 3 and then it is really 6 ounces. the difference between the older gen II and the newer gen III is 6 ounces. that 6 ounces is an additional 5.2 pounds when the helmet is accelerated to 12 Gz. Now The helmet Maker is already looking to try and reduce the helmet weight which is good. but my thinking is could we not also redistribute the weight away from the neck so that the pilots vertebra only have to deal with the weight of the head and not the added weight of the Helmet. I figure it would likely have to be a bit beefier then the Army system but the fundamentals would be the same. I imagine Something of a Hybrid between the VLOS and Auto Racings Hans Device
.
 
Brumby

Brumby

Major
TerraN_EmpirE said:
Here is the Issue I have with Weight reduction by means of a "Stripping helmet". first the helmet has to be stripped and presumably in a hurry every second used to strip it is a second in a dangerous situation.
second what do you do with those discarded pieces? anything floating in the cockpit is a potential deadly impact once the seat's Booster Rockets kick in and the Pilot is launched out the cockpit.
The Acceleration via the ejection is what is the potential killer it turned the weight of the helmet from a 5.1 pound state of the art display to a 62 pound cannon ball. it would also turn any floating modules in to potential risks. As the Pilot's body is propelled through them at the 12-14 Gzs of ejection. and Finally It means having to develop a totally new Helmet. Starting from scratch.
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I was just thinking out loud. If it is non feasible as you have outlined I am fine with it. It just shows that you know a lot more than I do.
 
Jeff Head

Jeff Head

General
Registered Member
strehl said:
...cameo appearance of the Catbird electronics development aircraft at 1:40 mark. Possibly taking part in some "test points".
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Interesting that the CatB was shown, but it is the aircraft where they are testing all of the new electronics and avionics systems on the F-35.

It is a modified 737. The nose is actually identical to the nose of the F-35.

When speaking of it, the program manager said:

CATB Program said:
Pretty much everything you will find on an F-35 you will find in the CATB. We have EOTS, Electronic Warfare (EW) capabilities, Communication Navigation Identification (CNI), radar and laser tracking for targets. All of the antennas and components that are in the F-35 Lightning II are on CATB. Our job is to test all of that and make sure everything works seamlessly together.
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It would be interesting to know what they were testing there.
 
Air Force Brat

Air Force Brat

Brigadier
Super Moderator
strehl said:
F-35C DT-II complete. Interesting cameo appearance of the Catbird electronics development aircraft at 1:40 mark. Possibly taking part in some "test points".

Click to expand...

I really have to say that I enjoyed seeing those birds brought back aboard in the rainy nasty conditions best of all. Love seeing the wing-tip vortices mini tornados of rain water streaming off each tip??? very cool, and very real testing, this is the real deal gents.
 
FORBIN

FORBIN

Lieutenant General
Registered Member
Test finish earlier, 6 days ! have do very good tests with also pilot very experienced.

Now time for new orders for next LRIP 10/11 for end of year, initialy planned number increase 38 to 57 mainly F-35A 28 to 44 but seems diffficult with a FY 16 no voted at less up to 10 Dec then right now funds remains same as FY 15 and according i have read DOD will be lucky if passed, i hope ofc or a "special " bill sometimes they do.

VX-23 again :)
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D

delft

Brigadier
I have no time to follow this thread ( I already spend more time on SDF than I should :) ) but I want to report on today's article on
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, my favourite radio station. It says that the Dutch F-35's will become nearly EUR 900 000 more expensive because Canada has decided not to buy, but it is not clear to me that that doesn't include the effects of reductions in buys by other countries. Such an increase in price would lead to a reduction in the Dutch buy to about 28 aircraft which is a very small number, too small to have an effective air force.
BTW the article also said that since last month pilots shouldn't weight more than 63 KG, I suppose the translation of 120 lbs, because of limitations of the ejection seat. Any confirmation?
 
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