17th March 2007, 23:36
| #31 |
| Senior - BHPian  | |
|
| |
|
18th March 2007, 09:56
| #32 | |
| Senior - BHPian  Join Date: Dec 2005 Location: Singapore, Mumbai, Nagpur
Posts: 2,166
Thanked: 219 Times
| Quote:
The military HMMWV and its civilian derivative the H1 were powered only by diesel engines. It had a 6.5 litre V8 Detroit diesel developing 160 bhp@3400 rpm and 393 Newton-metre of torque at 1700 rpm.  It was coupled to a Turbo-Hydramatic 400 4-speed automatic. The TH400 could handle 612 Newton-metres of engine torque! Torque Let me dwell a little on the torque of the Humvee! The Torque converter gave a torque multiplication of 1.96:1 The 1st gear in the TH400 automatic gave a torque multiplication of 2.48:1, Transfer case low-ratio further gave a torque multiplication of 2.72:1, The differentials gave a torque multiplication of 2.73:1 and finally the geared hubs gave a torque multiplication of 1.92:1 So this beast of a tiger, had an overall torque multiplication of 69.3:1 !! Body It has a light rust-proof aluminium body with a Kevlar-composite bonnet. The body rides on rugged frame-rails and cross members of high grade alloy steel that is hot dipped galvanized and epoxy-coated for additional corrosion protection. The aluminum body panels are glued together with a high-tech bonding adhesive and riveted in addition. 39 cm of ground clearance beats every other vehicle in its class. With the military deep-water fording kit, you could drive it through 5-feet of water. It had steel underbody protection plates in case you drove over rocks. It can climb a 2 foot high stone wall. Imagine doing a "U"-turn over the tallest imaginable stone divider as if it didn't exist! Wheels Run flat Tires -- The 12-bolt, 2-part split wheels had beadlocks and a solid rubber runflat (see my diagram). You could drive 50 km at 50 km/h on two punctured tires. Central Tire Inflation System (From the dashboard, the Humvee can deflate its own tires to 12 psi for driving on loose sand and re-inflate its own tires back to 45-50 psi on reaching solid road), The Torque-biasing axle differentials are good enough to handle a max. of 1,737 Newton-metres of torque. In fact, the axle differentials are hidden high inside and above the chassis, tucked away from any debris (even shrapnel from a stray mine-blast). Besides the differential housings are firmly bolted to the chassis without suspension. Geared Hubs ensure that the differentials do not lie on the wheel centre-axis. They increase the vehicle's ground clearance and multiply torque.  All four Kelsey-Hayes power disk brakes with 300 mm rotors, are again inboard-mounted at the differentials (not at the wheels). The Humvee has 4-point independent and interchangeable suspension -- the double "A" arm & coil-spring suspension spares can be used at any of the four wheel positions. The vehicle can thus substantially save on unsprung weight. Since the diff housing does not move, each side of the suspension can flex independently. Pussycats The Hummer H2 (shall we call it kid Hummer?) was just a body modified Chevrolet Tahoe/GMC Yukon with a 6 litre petrol V8. -- a housecat pretending to be a tiger.  The Hummer H3 or baby Hummer(H2's kitten?) is as conventional as the Chevrolet Colorado/GMC Canyon pickup truck, it is based on. It is powered by a 3.7 litre 5-cylinder in-line petrol engine, with a 5-speed manual gearbox or 4-speed automatic. The H2 and H3 are just ordinary SUVs that are shaped like a "Humvee" to please the untrained eye. The H4 will be even smaller (maybe 3.5 litre engine with a monocoque body like a car) -- a mouse pretending to be the housecat which pretends to be a tiger. Ram | |
|
|
|
18th March 2007, 10:13
| #33 |
| Senior - BHPian  | |
|
|
|
18th March 2007, 11:08
| #34 |
| BHPian  | |
|
|
|
18th March 2007, 19:40
| #35 |
| BHPian  Join Date: Apr 2006 Location: Delh
Posts: 494
Thanked: 89 Times
| |
|
|
|
19th March 2007, 13:02
| #36 | |
| Senior - BHPian Join Date: Dec 2005 Location: Singapore, Mumbai, Nagpur
Posts: 2,166
Thanked: 219 Times
| Pussycat Hummer wiped out by schoolbus Quote:
This happened on 26th Nov. 2006, at Madison Avenue near Terrace Avenue in Indianapolis, IN, USA. The H2 Hummer rammed the parked schoolbus from behind, lifting the bus up. There were no kids on the bus at the time and the bus driver was not injured. The driver of the Hummer suffered a neck injury. Firefighters had to extricate him out of his Hummer. How good are our emergency rescue professionals (do they even exist)? I wish him a speedy recovery and more careful driving next time. Less muscle more brains! Ram Here are 5 pics.      | |
|
|
|
19th March 2007, 13:22
| #37 |
| BHPian  Join Date: Oct 2005 Location: Pune
Posts: 321
Thanked: 19 Times
| |
|
|
|
19th March 2007, 13:30
| #38 |
| BHPian  | |
|
|
|
19th March 2007, 13:47
| #39 | |
| Team-BHP Support   Join Date: Dec 2006 Location: Mumbai
Posts: 10,265
Thanked: 12,317 Times
| Quote:
| |
|
|
19th March 2007, 13:47
| #40 |
| Distinguished - BHPian   | |
|
|
|
19th March 2007, 14:29
| #41 | |
| Senior - BHPian Join Date: Dec 2005 Location: Singapore, Mumbai, Nagpur
Posts: 2,166
Thanked: 219 Times
| Quote:
Any everyday BEST bus could take out Bollywood's gleaming yellow and chrome H2. There's no substitute for the genuine military AMGeneral M998 HMMWV a.k.a. Humvee and its civilized brother H1. The Humvee works shoulder-to-shoulder with Main Battle Tanks (MBTs). Here's a convoy of Chinese-made diesel Dongfeng EQ2050s on a bitterly cold Mongolian morning. Unlike the H2 this is as tough as the American HMMWV.  And this is the SFQ-2040 "Zhanshen" (meaning WarGod) made by Shenyang Aircraft Industry Co (SAC), China.  Its price is only one third of the price of the U.S.-made HMMWV. It's carrying an air defence missile system by Běifāng Gōngyč, China against missiles, UAWs, low-flying aircraft and helicopters. | |
|
|
| |
|
19th March 2007, 20:46
| #42 |
| BHPian Join Date: Apr 2006 Location: Delh
Posts: 494
Thanked: 89 Times
| |
|
|
|
19th March 2007, 23:53
| #43 | |
| Senior - BHPian | Quote:
 i do agree with you but still i feel they need to be well designed and not the way they are currently with some age old machinery inside.. I like the way they look and what they stand for but would love for them to have a diesel or even a diesel electric hybrid, that would make for some cool SUV to have..plus H3s are now being made RHD in SA so hopefully the H2s will get the same treatment as well.. | |
|
|
|
20th March 2007, 03:06
| #44 |
| BHPian  Join Date: Nov 2006 Location: Delhi
Posts: 258
Thanked: 37 Times
| |
|
|
|
20th March 2007, 03:34
| #45 |
| BHPian  | |
|
|
 |
Most Viewed