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| Killer Tweet https://warthogterritory.net/forum/viewtopic.php?f=9&t=8477 |
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| Author: | boomer [ 09 Mar 2005, 12:54 ] |
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Does anyone remember the G rating for the A-37 Dragonfly, and wheather it had speedbrakes or not? "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | Lil Hitler [ 09 Mar 2005, 17:51 ] |
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<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> Does anyone remember the G rating for the A-37 Dragonfly, and wheather it had speedbrakes or not?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote> Boomer, If I remember corretly it did have a speedbrake that was located on the bottom of the aircraft. Additionaly it had a Thrust Attenuator <sp> or as we always called it a TA, which some pilots had said could be used to aid in making quicker turns. capche-capche da - we go forward together Faugh ah Ballaugh -Clear The Way- |
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| Author: | boomer [ 09 Mar 2005, 18:43 ] |
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thanks LH, yeah I heard back from Ed Rasimus ( of all people lol ) he said he thought it was stressed to about 6.5 and said there was a flap under the body roughly in line with the wing, kinda like an upsidedown spoiler I guess. So it's a big fat YES on the speedbrake question, funny that I never saw one though. "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | a10stress [ 10 Mar 2005, 08:09 ] |
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<img src="http://aeroweb.brooklyn.cuny.edu/database/aircraft/showimage.php?id=5955" border=0> They were using one of these as a chase for the T-46 at the Republic works in Farmindale circa 1987. I thought it looked like the Mazda Miata of jets, pretty cool. I don't think the A-37 has the thrust attenuators of the Tweet because the engines are different (more than twice the thrust), so they might have added that belly speedbrake to compensate. It needed external tanks to go anywhere because it burned fuel at more than twice the rate of a Tweet too. It also had more than twice the gross weight of the T-37 so it needed the thrust. This is from http://www.nzwarbirds.org.nz/a37b.html Although still based on the T-37 airframe, this new model was a purpose built light strike aircraft rather than an adaptation of a jet trainer. The prototype first flew in September 1967 with production deliveries starting in May 1968. Given the designation A-37B, this was to become the definitive Dragonfly with a total of 577 being built by the time production ended in 1977. Compared to the A model, the airframe of the A-37B was <b>stressed for loads of up to 6g.</b> Slotted flaps, <b>a ventral airbrake</b> and hydraulically operated landing gear were fitted as well as comprehensive bad weather and night flying instrumentation. The side by side seating arrangement was retained in the unpressurised cockpit and, as a weight saving measure, a layered nylon flak curtain provided crew protection in lieu of armour plating. An inflight refuelling probe was installed in the nose and the maximum internal fuel capacity was increased to 507 US gallons. The ability to carry up to 4 drop tanks added a further 400 US gallons to this total. Offensively, a GAU 2B/A 7.62 mm Mini-gun was installed in the nose and over 5,000 lbs of mixed stores such as bombs, napalm tanks, air to air missiles, rocket pods and gun pods could be carried on the 8 underwing hardpoints. THE RAMPTOR ENGINEERING TEAM <img src=icon_smile_big.gif border=0 align=middle> "Who cares if it works? Does it look good on the ramp?" |
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| Author: | Homer32 [ 10 Mar 2005, 09:20 ] |
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<img src="http://www.kiwiaircraftimages.com/images/main/98_flyin/FLYA372.JPG" border=0> If you need any further detailed drawings etc., I could scan it and email it to you. The pic above is from www.kiwiaircraftimages.com "Did you know? You can use your old motor oil to fertilize your lawn! -- Environmental Protection Agency." |
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| Author: | boomer [ 10 Mar 2005, 09:22 ] |
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Nice link Stress thanks. I was commenting to someone yesterday that other than test mules and chase planes, the A-37 had to be the last plane in US inventory with centrifigal flow engines lol "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | Homer32 [ 10 Mar 2005, 09:23 ] |
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<img src="http://www.kiwiaircraftimages.com/images/main/01_omaka/OM01A371.JPG" border=0> ... in flight with speedbrakes out. "Did you know? You can use your old motor oil to fertilize your lawn! -- Environmental Protection Agency." |
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| Author: | boomer [ 10 Mar 2005, 09:26 ] |
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Homer that looks like it is right behind the nosewheel, is that right? I looked up a SFC of 0.99 for that engine, that's a wee bit steep for anything that isnt A: Soviet or B: a missle lol "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | Homer32 [ 10 Mar 2005, 09:34 ] |
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<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> Homer that looks like it is right behind the nosewheel, is that right? <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote> correct, behind the nosewheel.. And as Lil Hitler said, it has additional thrust attenuators. "Did you know? You can use your old motor oil to fertilize your lawn! -- Environmental Protection Agency." |
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| Author: | boomer [ 10 Mar 2005, 09:36 ] |
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and this one shows the FOD screens hanging down <img src="http://www.kiwiaircraftimages.com/images/main/98_wanaka/WANA3713.JPG" border=0> "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | a10stress [ 10 Mar 2005, 12:37 ] |
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<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> I looked up a SFC of 0.99 for that engine, that's a wee bit steep for anything that isnt A: Soviet or B: a missle lol <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote> I think the j85 did start out as a missile engine. I forget what missile. They put an AB on it and it worked well in the F-5. It has also been successful on Lear jets, T-2 Buckeyes and Sabreliners without the AB. The .99 number is actually better than the 1.1 lb/lb/hr number quoted for the little J69 that is in the T-37. Something around 1.0 lb/lb/hr is typical for straight tubojets (like the j85 and j69), around .8 for low bypass turbofans (F100, F404) and around .4 for high bypass turbofans (CF-6, TF-34). THE RAMPTOR ENGINEERING TEAM <img src=icon_smile_big.gif border=0 align=middle> "Who cares if it works? Does it look good on the ramp?" |
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| Author: | a10stress [ 10 Mar 2005, 12:41 ] |
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<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> I was commenting to someone yesterday that other than test mules and chase planes, the A-37 had to be the last plane in US inventory with centrifigal flow engines lol <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote> You must be thinking of the j69 in the Tweet, j85's are axial flow. THE RAMPTOR ENGINEERING TEAM <img src=icon_smile_big.gif border=0 align=middle> "Who cares if it works? Does it look good on the ramp?" |
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| Author: | Lil Hitler [ 10 Mar 2005, 13:41 ] |
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It was a great plane to work, I learned a lot from it in the short time I was assigned to it. FOD Screens and TA's where a Bi.ch to rig as well as the flight controls in the tail section (hell hole). As for the engines, they were simple to trim out just a click up/click down and to adjust the egt all you had to do was bend the mice tab in or out... I was told at one time that it had the same engine installed in it as a -60 power unit but I wouldn't swear to it. capche-capche da - we go forward together Faugh ah Ballaugh -Clear The Way- |
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| Author: | boomer [ 10 Mar 2005, 13:42 ] |
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no....I WAS thinking of the J85, I was just wrong that's all <img src=newicons/anim_lol.gif border=0 align=middle> I figured if the Tweet had centrifigal flow then the uprated A-37 probly did too. Thanks for the help guys, I did the FM for it last night and if it's close to real then I can see why the pilots loved it so much. Very fun to fly and something you have to be carefull with in an air to air situation, the VERY low wing loading lets it turn inside any fast mover IF you let the fight slow down. "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | boomer [ 10 Mar 2005, 13:44 ] |
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about those FOD screens, I was reading on an A-37 site last night that they had to be carefull when taking off in formation. The screens had to be retracted in unison with the other planes as they gave quite a thrust boost once they got out of the engines way. "We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell Fighting For Justice With Brains Of Steel ! <img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0> |
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| Author: | gifted [ 13 Mar 2005, 14:08 ] |
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<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>I was told at one time that it had the same engine installed in it as a -60 power unit but I wouldn't swear to it. <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>I remember hearing something similar in tech school. I recall it was T-<i>38</i> engines for me. Someone on here might know, or I can ask an AGE guy. "Some pup" Nickname by Fenderstrat72 |
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