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By: - 12th August 2011 at 18:57 Permalink - Edited 1st January 1970 at 01:00
Did the F-15 (back in the 80s) had the same nozzles fitted (with F/A-18 canards) or like the Su-27 with an oversized nozzle?!
By: - 13th August 2011 at 12:23 Permalink - Edited 1st January 1970 at 01:00
Um... yes interesting read.. but hardly new
http://en.wikipedia.org/wiki/McDonnell_Douglas_F-15_STOL/MTD
By: - 13th August 2011 at 12:32 Permalink - Edited 1st January 1970 at 01:00
By: - 13th August 2011 at 12:35 Permalink - Edited 1st January 1970 at 01:00
20yrs ago.... how time flys !!!!
By: - 13th August 2011 at 12:40 Permalink - Edited 1st January 1970 at 01:00
A boiler plate is just a stand-in or dummy that is in some way simplified or generic. What that means in this case is probably that the nozzle was either not fully functional (i. e. just a test of the rectangular cross section without actual thrust vectoring), not flight worthy (overweight, for example) or not representative of anything designed for a specific airframe.
Er.. no... a boiler plate is a bit of metal used as a door on a boiler.
Its a nickname he gave (or the pilots/ engineers) to the 2D nozzle.
A boiler needed very thick metal, able to withstand high temps.
Its like when pilots talk about "steam gauges" in an aircraft... a nick name for old analogue guages with needles.
By: - 14th August 2011 at 00:32 Permalink - Edited 1st January 1970 at 01:00
Possible... I got the impression though that the expression was used here in this sense:
Yes but in that sense it means a "non-functioning" prototype... in his blog he says its actually worked
In late 1982, Pratt ground-tested a prototype “boiler plate” rectangular cross section (two-dimensional) thrust vectoring/thrust reversing exhaust nozzle on an F100 engine. This was brought about by aircraft manufacturer and government studies which showed a need for higher air combat agility and shorter take-off and landing distances by future fighter designs. In hindsight, this was a very important step in Pratt & Whitney’s involvement in the ATF program.
The F100 was used in the F15 and this prototype nozzle has the same design features to that which was fitted to the F15 MTD.
By: - 14th August 2011 at 08:41 Permalink - Edited 1st January 1970 at 01:00
Er.. no... a boiler plate is a bit of metal used as a door on a boiler.
Nearly there... boilerplate is a plate of mild steel of standardised dimensions suitable for use in, logically enough, boiler repairs. It has to be cut and formed to correspond to the area requiring repairs, hence it has entered general usage as a term for something generic that can be customised to suit circumstances.
For example, a "boilerplate" legal document will have to be tailored to the specific scenario.
By: - 14th August 2011 at 19:31 Permalink - Edited 1st January 1970 at 01:00
Thanks for the replies, guys. I will check out the rest of the info or the url addresses you guys gave...
By: - 15th August 2011 at 02:31 Permalink - Edited 1st January 1970 at 01:00
Most boiler plates had certain aspects working representatively which they were intended to test cheaply, they just abbreviated the rest to save cost. The Shuttle Enterprise is considered a boiler plate by some sources.
Aerodynamically and structurally representative of the planned space-capable shuttles, but itself never intended for launch... no functional engines or systems for them (just lumps of weight to match the real things), not vacuum-rated, materials not capable of withstanding the heat of stresses of re-entry, etc.
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By: fulcrum-aholic - 12th August 2011 at 18:39
...“boiler plate” rectangular cross section (two-dimensional) thrust vectoring/thrust reversing exhaust nozzles...
The rest of the article below:
http://blogs.palmbeachpost.com/travelsmart/2011/08/10/the-herrick-chronicles-birds-and-fighter-jets/