World of Tanks

World of Tanks MMO Fan Discussions

Search

 

Pages

When am I allowed to move up a tier? And a bit of crew training.

4:03 pm, October 14, 2014 Ok so I'm learning and playing the game.  I'm around tier 3-4 through earning but also purchased a pack of 3 tier 5 heavies a couple weeks ago.  I'm not great with those and I know i [..] View

Looking for a laid back clan

4:03 pm, October 8, 2014 Hey, since I suffer from doing randoms mostly alone I'm looking for a clan that I can play with and maybe even learn something from. I'm EU servers and gernan. Toptanks are T34 T29 and T20. I'm german [..] View

A story about the results of pi-polar tanking.

4:03 pm, October 8, 2014 A short story about my struggle with tanking, family and work, and how the three battled for my sole.   Some of you already know me from long ago as "The Unicum Hunter" in the forum [..] View

Lowe still needs preferred MM

4:03 pm, October 6, 2014 With the advent of the matchmaker tier range changes, all the new tanks, and various map changes to encourage brawling, the Lowe is suffering as a result.  Even with the most recent minor buf [..] View

Tier list of tanks for tier 6 strongholds

5:03 am, October 2, 2014 Lately I've been doing quite a bit of tier 6 strongholds and encountering a lot of teams that seem to have no idea what they're doing. I'm hoping to write some guides maybe when I have more experience [..] View

Looks like the KV-85 likes the 100mm best

4:03 pm, September 25, 2014 Played a few matches this morning. The 122 suffers from crippling bloom/dispersion and reload. The 100, on the other hand, feels fine. Decent gun handling and very workable reload and damage. The tank [..] View

To Buy a PZIV-S or not?

5:03 am, September 10, 2014 I have some spare gold and I wanted to do the Medium Tank mission for this month while making credits. I have a PzM10 I got as a gift from an old friend, but I don't like it as I find it suffers from [..] View

Is there any other mid-tier tanks like Hellcat, gunwise?

4:03 pm, September 7, 2014 I am in love with the Hellcat. More specifically, its gun. 240 alpha with 160 pen is SO GOOD at this tier! Its accuracy is quite enjoyable and the handling in general (which will be nerfed in 9.3) is [..] View

Was the A-44 recently buffed?

5:03 am, September 5, 2014 I remember about 3-4 months ago I was trying to advance down the Soviet medium lines, but having abandoned the A-44 because I really, really hated it. But I've recently decided to pick up where I left [..] View

The GOLD Issue...

4:03 pm, September 4, 2014 Ok. I've only fought 3,000 battles, so I won't claim to be an expert on this game.   I do, however, see an inequality between GOLD and non-Gold players. I've tried both, and I definitely do b [..] View

FTR's Conclusion on Arty Email Leaks Flawed and so is WG's Logic

5:03 am, September 4, 2014 http://ftr.wot-news.com/2014/09/03/insider-wargaming-thoughts-on-arty/ Summary: Players Whine about Arty, supported by Stats (a) WG sets to nerf arty Serb rages predicting TD will be whined about Spe [..] View

Amazon, Twitch and WOT streams

4:03 pm, September 2, 2014 I was wondering what people thought about the possible implications of the recent purchase through amazon. Do you think that games which present less product placements for them (such as F2P games) co [..] View

Warning to the new Dicker Max owners. You win rate may suffer

4:03 pm, September 1, 2014 While DM is not a bad td, its very team depended because it has narrow arc of fire, paper armor and the 8 sec reload gun which can be very inaccurate at times. Its very hard to carry in this tank. I s [..] View

Low tiers are extremely difficult for new players.

2:01 am, August 31, 2014 So today me and my friend, who is new to World of Tanks were playing, and he just got his T-46. So we platoon up and we find a game like this. http://imgur.com/1KsCrof . Now I must ask, what is the po [..] View

AMX m4 45

2:01 pm, August 30, 2014 I have no idea how to play this thing. Its armor is worse then arl and it is much bigger im assuming sniping is the only way to suffer through this tank? submitted by Gdfternoon [link] [9 comments [..] View

XVM Stat Mod and Pregame Chance To Win

2:01 am, August 28, 2014 Ever since I first looked up my stats on Noobmeter back when I had just over 1k games played, I have wanted a way to be able to track my stats in-game and compare them to others around me. Ever since [..] View

A global apology to Illy (Badgr) player

2:01 am, August 22, 2014 So. I have to apologize to Illy...at least I think that's his name. Anyway I was being a royal [edited]in a match today and he just happened to suffer some of the brunt of it. I apologize for my boori [..] View

JT 8.8 vs T34 for money making?

2:01 pm, August 6, 2014 I have been looking all over the forums for this and each one is bringing different opinions on which tank is better at making creds, the Jagdtiger 88 or the American T34. Some are saying that the T34 [..] View

KV-5 as a solo player?

2:01 am, August 4, 2014 I've heard the KV-5 is fantastic, especially in a platoon. However I'm a loner screb and solo all my games. So that means I'm going to be in many and I meanmany1 v. multiple people situations. How wel [..] View

Extinguisher Vs Large repair kit

2:01 am, August 4, 2014 You are probably wondering why this is even a question. Normally I would to but let me lay a few things down. First this isnt a contest on anything for me with a chance of engine fire above 12%. Secon [..] View

Even on large tanks, camo CAN be made more effective than you'd think

2:01 am, July 13, 2014 When I first started reading about camo mechanics, I repeatedly read not to concern myself with camo on tanks that are very large or heavy tanks, because heavies wont benefit much from it, and dont ne [..] View

A noob tomato looking to turn green

2:01 am, July 9, 2014 So I decided to check this game out this past weekend and it turns out it might have been the worst time for it with the 5x weekend. I ended up in tier fours nearly in tier fives and all that. I manag [..] View

I just got the AMX 12t and I need help

2:01 am, July 8, 2014 I unlocked the AMX 12t and bought it. However I want to keep the ELC AMX so I have to get a new crew for it. Should I buy a 100% crew for it? I have enough gold for it if I buy the crew today or shou [..] View

Why is there so much hate for x5 weekends?

2:01 am, July 8, 2014 So many people ***** and whine about the noobs coming out on x5 or similar weekend events. Granted this does give you worse teams with players yolo'ing or camping, but wouldn't the odd [..] View

Putting crew in other vehicles for 5x XP

2:01 am, July 7, 2014 I have a Premium light and I xfer my Luchs crew into it until I get a victory then put them straight back into their Luchs for another 5x. But I just kicked out the crew from my Pz.2G and threw mos [..] View

El Halluf 9.2 - no place to hide...

2:01 am, July 1, 2014 FTR: http://ftr.wot-news.com/ The vid is in Russian - but you can see; major rework to the map. A LOT less bushes, numerous new routes. TDs will not have a lot of places to hide / shoot from safe [..] View

Pitched Battle Mode

2:01 pm, June 30, 2014 I'm still quite novice at this game at little over 5k battles, and many may detest me as I have done over half of them as Artillery. However, I do feel that most of the maps feel rather small and not [..] View

Clan?

2:01 am, June 25, 2014 So I recently parted ways with my clan, KRT. I was with them for over 4 months, but today was the end of it. The parting was in good spirits. They were looking for more people to fill their ranks for [..] View

WWSG - WOT Withdrawal Support Group

2:01 pm, June 17, 2014 For those of you suffering from Wot issues due to maintenance, we'll be meeting tonight at 7. View

Why Artillery Needs to Get Buffed and How to Get Over It

2:01 am, June 12, 2014 Okay, so I've been playing this game since May 16th 2011. I have been around since 0.6.4. I'm not posting this for thumbs up because it sure as heck won't be because the average player in the game wou [..] View

Comprehensive Ammunition and Damage Rework

2:01 pm, June 7, 2014 This is going to be a long one, so let me break this down. Ammunition Changes First and foremost would be the move to a system comprising a total of nine different ammo types(ten if you want to [..] View

Crusader or Churchill I, that is the problem.

2:01 am, May 29, 2014 So, after weeks of grinding (I only play a few games a day), I finally unlocked Crusader and Churchill I. The problem is, I have neither the credits or the free xp I want to use to elite the ******* [..] View

Fine system needs work

2:01 am, May 20, 2014 If a team mate slams into your side and he suffers more damage than you, you are fined and not compensated for the damage he caused you. This is not right since HE hit you broadside at full speed and [..] View

After eleven-thousand battles, I've suffered my first crew *****.

2:01 am, May 18, 2014 submitted by Vetroxity [link] [20 comments] View

Unusual Tank Challenge

2:01 am, May 11, 2014 Getting a tiny bit bored with pubs, What's a rarely seen tank? I feel like doing a 100 game solo challenge. (pls no Churchill GC) Decide to go with the AMX40 oh god its awful Streaming the suf [..] View

It pays to but the best! Durchbruchswagen...

2:01 pm, May 6, 2014 Can't edit the topic which should be: It pays to BUY the best! By now I am used to having worthless guns on my tanks. I'm suffering through grinding the German line but: 86 shots fired at a Mati [..] View

Which guns suffer from troll RNG the most?

2:01 pm, May 5, 2014 I just missed 4 shots in a row with my T34 and realized that pissed off feeling I get when my shell dives straight into the ground immediately after leaving the barrel is normal to me. I hull-downed o [..] View

9.1 buffs/nerfs

10:05 am, May 5, 2014 In recent days, details of what's to come in 9.1 have been leaked, this has raised many more questions than it has provided answers, I won't go into details but there is a link below if you're interes [..] View

[RDDT2]VladmirPutin banned for inappropriate nickname.

2:01 am, May 4, 2014 Hey guys, i'm not much of a poster, but a big lurker here, and while i wait for WOT support team to answer me i'm wondering what do you guys think about this. Here are their current ru [..] View

Thanks a lot WG! you fixed the maps,. now how about the tanks?

10:05 am, May 1, 2014 How does the WoT player population liking the reworked maps that now appear in the pub matches? The reason why, I asked, is that while I find some of them pretty decent now, it just seems that WG has [..] View

Zero damage critical hits.

2:01 pm, April 30, 2014 Found some cool photos of tanks who's commanders were delighted to be hit in the tracks. After all a few links break,paint gets charred, but the tank suffers absolutely no damage. Like here : (See [..] View

It has been one of "those" weekends

10:05 am, April 28, 2014 Hello again, With every 3x XP weekend comes the utter stupidity and failure on behalf of one's own team. Poor decision making, horrid shooting, awful sportsmanship, a XVM sea of red, and all the utte [..] View

Incoming rant - The state of things

10:05 pm, April 27, 2014 Warning, this is the product of a lot of frustration so I am not going to be that diplomatic. If I step on your favorite tanks toes, I am not that sorry. Where is this game going? Is it just me o [..] View

Ideas to salvage Historical Battles

10:05 am, April 27, 2014 (Caution; the following opinions / ideas are free of charge, and you know what free stuff is worth) I've read a number of posts about HB mode, and so far I really haven't see a tremendous calling ( [..] View

KV-1S nerf, what should be done IMHO

10:05 am, April 26, 2014 Hello everyone, Commander_to/Adinias with some news and my suggestion of how it could be done. First of all, the bad news... The KV-1S WILL be nerfed, on tier 6 we will see the KV-1S WITHOUT D2 [..] View

A Possible remedy for Game Crashes,...

2:01 pm, April 19, 2014 Ok,...now it would seem that alot of people are having issues involving game crashes. While I do not know the specific cause, nor do I care, I was suffering constant crashes all day yesterday, until [..] View

Rather than just saying that gold rounds are bad, I thought I'd discuss/list the way to fix gold round.

2:01 am, April 16, 2014 To put some perspective on my current opinion of gold rounds, I'll explain how I currently treat them. I use them as a credit dump; loading tanks up with gold rounds when I feel I have too muc [..] View

A satisfying game.....

9:05 pm, March 2, 2014 Just had to post.... lol. Actually, one of the reasons I post this also, is my game is changing with my TD's. While getting used to my TD's, I would find a vantage point and wait for the enemy to [..] View

As a *Panzer Front* veteran...

9:05 pm, February 28, 2014 Ok so 'veteran' might be to overstate it a little, but I did play the hell out of Panzer Front back in around 2001 on my PS1. Having enjoyed Panzer Front immensely, and just started pl [..] View

TimedParadox Challenge

9:05 am, February 27, 2014 The challenge is simple, for every match where you're a useless deadweight for your team and you let a tank two (2) tiers under your own deal more damage than you, you give yourself one point. Whe [..] View

PSA: Zen and the Art of Self-Defence - How to Handle Trolls, Tk'ers, and Annoying People on Your Team

9:05 am, February 25, 2014 You can't. Shooting a green tank is never allowed. Ok, so you need some more than that. Sure thing. I'm noticing an increasing number of threads of people complaining about being banned for reta [..] View

Willing to help a new/inexperienced player who is looking to improve tonight.

9:05 am, February 23, 2014 *Done for the night. * Downvote this now please. I have ample free time tonight. I am willing to help a new/inexperienced player with World of Tanks. I am on the NA server. Any type of tank is fine. A [..] View

What do players consider reasonable que times?

9:05 pm, February 11, 2014 I'm just curious what people think are reasonable wait times in que as I see WG working hard to reduce wait times, yet I never have to wait more than 45 seconds at any tier, at any time of day I play [..] View

DPM & TTK Formula

9:05 pm, February 8, 2014 This is essentially just a repost of my comment here, but I felt it deserved a wider audience. I see a lot of people multiplying a tank's damage per shell by its fire rate to obtain its DPM. Unfort [..] View

Looking for serious clan with mature leadership.

9:05 pm, February 6, 2014 I'm 28 and I'm a skilled chess player. I like strategy and war tactics. Over the last few weeks I've been working to improve my win ratio but I've noticed a pattern. When I get close to getting out of [..] View

The worst defeat I have suffered (no afk players)

9:05 am, February 6, 2014 submitted by Zaknafein87 [link] [5 comments] View

Share your daily losing streak!

9:05 am, February 6, 2014 With the amount of idiots increasing in WoT these days, it is impossible for matchmaker not to eff you up until you suffer hard from the clowns playing with you! Share your daily losing streak here [..] View

PSA: The Three Varieties of Tomato

9:05 pm, February 5, 2014 The Three Varieties of Tomato 1) The Best Kind - This tomato is just discovering the game. They may not fully (or at all) understand the game mechanics, but their desire to learn is high and they are [..] View

Just trust me, im a Sturgeon.

9:05 pm, February 5, 2014 You're here. Why? Because you need a Sturgeon. Thats right, I am a fresh water fish. With 3.2k battles, and a 47% win rate, I wont be pulling you around much, but hey guess what? Im a bloody STURGEON. [..] View

If not for tomatoes, there would be no WoT

9:05 pm, February 4, 2014 You guys hate the tomatoes. I think that's the wrong attitude. I think you need to be happy, perhaps even delighted that there are so many tomatoes in the game. For several reasons. To start - [..] View

1st Impressions Type 64

9:05 am, January 21, 2014 Hello again, So tonight I decided to go ahead and use my gold to purchase the Type 64. I have gotten quite a few games in over the period of a few hours and thought that I would share my 1st impressi [..] View

Maps that should be removed/reworked

9:05 pm, January 20, 2014 Erlenberg - We all know it. Erlenberghas become a massive camp fest. The reasons for this are simple. You have 2 sides of a map separated by a river with 3 narrow crossing points. These points can be [..] View

So which tier IX (crew) to *promote*

9:05 pm, January 18, 2014 So, that I'm anywhere near close, but have been wondering what to do when times comes; when I unlock the T57 Heavy, which of the crews (have to be from one of my US tanks, right?) from current [..] View

WHATS HAPPENING?!?! part 1

9:05 pm, January 14, 2014 So for the last week I have had terrible games andto a conclusion at the end of the game 2 or 3 people on one side have 1 or 2 kills and almost everyone on the enemy team has 1-4 kills. Normally I wo [..] View

what TD to get next?

9:05 pm, January 12, 2014 Hi guys I'm currently grinding the obj704 and I'm like 150k xp from the 268. Then I realized that it might not be worth it. The fv 183 vapourizes tanks in one shot. The foch 155 can one clip t10 tank [..] View

On the topic of lag

9:05 pm, January 11, 2014 Since I started playing this game again, I've noticed strange lag behaviour that doesn't seem to be affecting many other people. The first one occurs all the time. It is most noticeab [..] View

The story of the Churchill Gun Carrier.

9:05 am, January 11, 2014 The vehicle was developed on the basis of the Churchill tank. The cabin with the 3-inch gun was placed in the front. Initially, 100 vehicles were ordered. Later, the order was reduced to 24 vehicles. [..] View

Jagdtiger - The German box tank that was never meant to be: A disappointing fate for the average joe.

9:05 am, January 9, 2014 Jagdtiger is one of those hated tanks. WG hates it so much, they nerfed it with the batch of German "balance changes". Is it still capable? Yes. Is it fun to play now? No. I rewrote [..] View

DEAR WOT : I AM BREAKING UP WITH YOU, FOR 10 REASONS

9:05 pm, January 7, 2014 Since 2011, I have had a relationship with World of Tanks. Like few other games in my long gaming career (which dates back to the 1980s), I have poured my heart, energy and even money into this one. I [..] View

Making the credits flow?

9:05 am, January 5, 2014 I have this problem. I like to buy tanks I've researched at the first opportunity. I sometimes sell my least played tanks to get the gap closed. I own the KV-5, JagTiger 8.8, IS-6, SU-122-44, [..] View

Hello, Chi To! Goodbye Hellcat!

9:05 pm, December 26, 2013 The new Japanese Mediums have been a lot of fun for me so far. The Chi To reminds me of when I first found the Hellcat. I have over 5,100 battles in my Hellcat and that number is pretty high because I [..] View

"Is anyone caring?" - small rage by me.

9:05 am, December 24, 2013 Please for the love of god. Find the guy who is the creator of the mod that adds "Is anyone caring?" to the help button and make him suffer. I cringe everytime my brain needs to pars [..] View

Dealing with a friend.

9:05 pm, December 9, 2013 Hi. I'm one of those people who actually type out full spelling please in games. I try to keep things civil, and maintain a modest 51% winrate. I'm not a great player per se, but I gla [..] View

Tribute to great Ideas and You! By IronHide77777 "V 1.0"

9:05 am, December 8, 2013 This post is a compilation of all the posts that I have Checked out/Created/or found to offer wonderful ideas. I have even posted some of the Persons who's post inspired me to come up with this variat [..] View

ELC AMX advice needed

9:05 pm, November 27, 2013 I finally powered through the AMX 38 and AMX 40, and bought my ELC AMX last night to find myself at a bit of a crossroads, in terms of what I need to do first to get my personal, and tank's performanc [..] View

Just because you CAN doesn't mean you SHOULD!

9:05 pm, November 27, 2013 Here is a tidbit i learned the hard way and beleive it may be useful to other newbies like me. I always had the mindset that bigger/higher tier is better. I didnt invest much time in learning the bas [..] View

Victories for Team battles not applied but Defeats are?

9:05 pm, November 25, 2013 So  my team and I just went on a spree of about 22 wins and 13 losses, and i have been keeping track of my Victory % durring this time.  I noticed that when we won [..] View

It's about time I make a choice. T-34-85 or A-43?

9:05 pm, November 15, 2013 I'm almost done with the grind on my T-34, and I'm wondering which medium line to go down. I've really enjoyed the T-34, and both of the ones that come after look fun. I&#3 [..] View

Penetration decay and shell velocity charts now mostly 8.9 compliant.

9:05 pm, November 8, 2013 https://docs.google.com/spreadsheet/ccc?key=0AmAUnd_LTmQydEZ0RHljZ05xN3RzMU9NdTRoaTRQV0E&usp=drive_web#gid=5 TL;DR: A couple low-tier German TD guns lost penetration and velocity. The 7.6cm Pa [..] View

WOT Learning Curve: a roadmap

9:05 pm, November 8, 2013 World of Tanks Learning Curve Level 1: Noob.  Player believes that the game is Call of Duty in tanks, so he either camps or tries to drive around snap-shooting at enemy tanks on the [..] View

Fix for the crash to desktop after battles?

9:05 pm, November 4, 2013 I'm guessing I'm not the only on the only one that suffers from this. Been looking for a fix for a few days now but with no success. Just a bunch of threads with a lot of players havin [..] View

Gift shop NA vs RU and EU

10:05 pm, October 18, 2013 Dear war gaming I have been advised to post here in reference to my support ticket. I do not agree with that I need 50 or more post in regular forums to be treated like a valued experience player. &qu [..] View

A friendly PSA: don't drink and tank

10:09 pm, October 16, 2013 Speaking from personal experience I can tell you that consuming alchohol could have negative effects on  your battle performance. It slows down you reflexes, you reaction time suffer [..] View

Low tier French tanks are so bad they are an insult to WG's players.

10:05 am, October 4, 2013 I usually try to avoid these sorts of statements, since they smack of hyperbole, but in this case it's not hyperbole.  The Tier 2 and 3 French tanks are miserably bad, to the point w [..] View

What is the appeal of playing SPGs?

10:05 am, September 28, 2013 Okay, so I'm trying to be "well rounded" (granted, which boils down to me sucking at everything) and am playing all the tank lines through tier IV to get a feel for things, a [..] View

Thoughts on Lights/Scouting

10:05 am, September 28, 2013 I've been troubled by the ranking up of lights in the matchmaker for a while. It just seemed to me that if a tank has low armor, low firepower, and low HP, that matchmaking it against very, very much [..] View

Sorry WG. You did some great things, but the core of the game is still GARBAGE.

10:05 am, September 28, 2013 I have had it.  Physics, new tanks, balanced arty, new maps, all good stuff.  But you are seriously blundering the biggest and most important core of this game, the [..] View

Fires, the new 112, and you?

10:05 am, September 28, 2013 More or less a curious question on how to "fix" a problem and already ongoing topic in the forums. Anyone who owns the new 112 probably by now knows of the fire problems it suffers in comb [..] View

[IHOP] International House of Pwnage

10:05 pm, September 24, 2013 We deliver victory inside of 15 minutes! What you need: a mic, teamspeak, an above average win7/efficiency over the last 60 days. the ability to commit to at least 3 days of clan wars out of every we [..] View

Something I Believe to be Correct.

10:05 am, September 22, 2013 Perhaps it is not in my own personal interest to post anything here, but something has just occured to me. Prior to the existance of the most horrid tank ever *Aside from people's personal enmity agai [..] View

I know it's been said before

10:05 am, September 17, 2013 Low tier scouts in T10 battles, you either love the challenge or hate the futility. Usually I role with the punches and the challenge is to see how long I can stay alive, but does anyone else sometime [..] View

Mashed Keyboard Ignores

10:05 am, September 15, 2013 Ever been in a critical moment of a battle and got a module damaged (gun/track etc) or been lining up a **** and suffered crew injury (gunner/loader) or just been lit up (fire fire fire!) and have acc [..] View

Why is this not fixed, Wargaming?

10:05 pm, September 6, 2013 I'm sure a lot of people are aware of this bug, and I'm calling it a bug because it really is just broken. To put it simply, some tanks, especially, but not limited to, Churchill style tanks, take dam [..] View

My stats have suffered so badly from my Leopard PTA stock grind...

10:05 am, September 4, 2013 Like Jesus ******* Christ, I rarely break 1000 damage with the stock gun, even with the added DPM from the turret, and I just don't have the mobility without the engine, so the tank has just b [..] View

I'd like to track my lag. How do I do it?

10:05 am, August 25, 2013 Lately, I've been suffering hourslong intermittent lag spikes that I suspect are coming from my ISP. They are present regardless of WoT server and have a similar effect ... boosting my ping be [..] View

The Premium Ammunition Conundrum

10:05 am, August 24, 2013 After grinding my Ferdiand out all day, seeing mostly tier 10 tanks, and losing more than winning. I started to become fascinated by people using premium ammunition. I was studying how they played and [..] View

Tanker Mentality

10:05 am, August 20, 2013 Kind of a rant so please bare with me. So I was playing a battle on Mountain Pass in my Hellcat, suffering lag due to high ping (lunch time at work so internet was congested) but managed to **** 2 tan [..] View

How do I play the damn Panther?

10:05 pm, August 16, 2013 Ugh... third time I've bought this PoS now.... want the Tiger II so bad but don't want to suffer through the Tiger, which seems even worse than the Panther. I can't get a win i [..] View

Does anyone else feel like they're at a good stopping point?

10:05 pm, August 15, 2013 After having ground a lot of lines and explored a lot of options (and suffered for all the experimentation), it seems like I've settled on a lot of high-mid tier tanks that are the best in their lines [..] View

Any tips on T-34 medium playstyle

10:05 pm, August 14, 2013 Hello fellow tankers, I tried searching the subreddit but I haven't found much on this topic. Basically my story is I'm grinding T-34 (russian medium) and coincidentally chinese medium [..] View

Sign In

×

Sign Up

×
Page generated in 0.7687 seconds.
Site Engine