Spit Mk1A climbrate

[Kev367th]

30mph average increase using 100 grade fuel and a 12lbs boost over an 87 grade fuel one.
Our current Spit 1 is based on a 1939/early 1940 87 grade fuel 6lbs boost one.

Bear in mind the 109s are being overhauled aslo and I would expect the differences to be closer to historic figures as compared to our current performance.
Will try and find a Mk I speed chart with 100 fuel.

You'll be hard pressed catching a 110-G2 above 20k in a Spit 1, and believe me in the BoB scenario they arent coming over the channel at sea level.

The 109 and Spit 1 are fairly even at 15k speed wise, over 20k the edge goes to the 109 (marginally).

[FalconSix]

Originally posted by Kev367th
Certain alts it will be faster than the 109. They were pretty evenly matched, 109 faster at certain alts, Spit at certain alts.

Originally posted by Kev367th
The 110 commonly used in the BoB I believe will still be faster. Unless we get the earlier BoB version before the next scenario.

That is not compatible with this:

Originally posted by Kev367th
30mph average increase using 100 grade fuel and a 12lbs boost over an 87 grade fuel one.

If the spit1 gains 30mph it will no longer (in fact it already isn't) be "pretty evenly matched", it would be grossly superior.

Originally posted by Kev367th
Take a Spit 1 up and try chasing the 110-G2 which is used in the BoB scenario, try to follow it ina dive also.

Now whos full of it?

The 110-G2 is a 1943 model fer christ sake. The BoB version is the 110-C4. You have no idea what you're talking about, have you?

Originally posted by Kev367th
30mph average increase using 100 grade fuel and a 12lbs boost over an 87 grade fuel one.

I think you already have the performance of a 12lbs boost spit1. In either case your +30mph is a pipedream because it would make the spit1 outperform later model spits and many mid-to-late war planes, which is completely unrealistic.

Yes you are full of it.

[FalconSix]

Originally posted by Kev367th
You'll be hard pressed catching a 110-G2 above 20k in a Spit 1, and believe me in the BoB scenario they arent coming over the channel at sea level.

See earlier comment on you not knowing what you're talking about.

Originally posted by Kev367th
The 109 and Spit 1 are fairly even at 15k speed wise, as you go higher the edge goes more and more to the 109.

Not in AH. The spit1 is completely dominant above 15k. At 15k the 109 starts to lose power and speed with altitude. The spit1 continues to gain speed up till about 20k.

[1K3]

Spit 1 (using +12 boost/100 octane fuel used during the Battle of Britain) is actually faster than 109E at all alts

http://www.spitfireperformance.com/spit1vrs109e.html






and FalconSix... No trolling allowed

[Kev367th]

Ok got the two 110 mixed up, try taking up a C4 to its best alt 23k ish at which it does around 350mph.

Now chase it with a Spit 1, they are about the same at that alt, BUT the chances are you won't be at 23k, you'll still be climbing in the scenario.

Now as for the 87/100 debate.

As far as I am aware and no-one has said anything to the contrary our current Spit 1 is based on a 87 grade/6lbs boost one.

The usage of 100 grade fuel boosted the performance of the Spits as shown in the links I posted.

Thanks 1K3 I was trying to find that, gotta admit I never realised that it totally made the Spit faster at all alts, was going off what I remember from last years BoB, we couldn't catch the 110s.

Like I said will make the next BoB scenario very interesting indeed, depending on what they do with the 109E-4.

Apologies for the inacurrate post, memory often misleads,and its late.

[FalconSix]

Originally posted by 1K3
Spit 1 (using +12 boost/100 octane fuel used during the Battle of Britain) is actually faster than 109E at all alts

http://www.spitfireperformance.com/spit1vrs109e.html






and FalconSix... No trolling allowed

The AH spit1 IS FASTER AT ALL ALTS. It's even faster than in your charts. The AH spit1 is a 360+mph plane!





I'm not trolling. If anyone's trolling it must be kev!

[Kev367th]

1K3 have you got the link to that other site that does the performance of AH planes, I tend to find it a little more accurate?

I don't think I've ever gotten an AH1 Spit 1 to 360, unless its straight down missing a tail.

[FalconSix]

More accurate than HTC's own charts?

[1K3]

Originally posted by FalconSix
The AH spit1 IS FASTER AT ALL ALTS. It's even faster than in your chrats. The AH spit1 is a 360+mph plane!

nope

spit 1 has max speed of 355mph at 17,800 feet

i tested this a looooooooong time ago.

[Kev367th]

A lot of stuff are theoretical limits, you dont think they acually flew a plane at all those diff alts to get the charts? Easiest way to find out is go offline and take a Spit 1 up see what happens. Theory and practice tend to be two different animals.

If you look at 1K3 charts - AS I SAID the speed increase varied on altitude, above 17k or so 100 fuel makes no difference.

[FalconSix]

Originally posted by 1K3
nope

spit 1 has max speed of 355mph at 17,800 feet

i tested this a looooooooong time ago.

Ok, and according to the chart you linked to it shouldn't do more than 354mph on 100 octane... and you guys want to add 30 mph to that?

[FalconSix]

Originally posted by Kev367th
Makes you wonder 1K3 is our current Spit 1 a 100 grade fuel beast limited to 6lbs boost?

That doesn't make sense at all. Increasing octane without increasing boost yields nothing. Higher octane rating doesn't add power, only allows for more boost.

[Kev367th]

Read the chart again - over 17k 100 fuel makes no difference.
Under that with boost on it makes all the difference, as I said from 25-34mph.

I see its where I said top speed, I should have been more clearer, what I should have said is top speed at lower alts, my apologies.
i.e It can reach its 350+ at lower alts with boost on.

That actually makes HT charts look fairly accurate, seems to be 350-360 ish, although I think the WEP curve is off a little.

[FalconSix]

Really? The Spit1 was faster than the Spit5 on the deck?

[Kev367th]

Never said on the deck, geez look at the chart 1K3 posted, 100 fuel with 12lbs boost allowed the Spit 1 to reach 350 or there abouts at 11k ish, assuming the chart is accurate and I am reading it correctly.

Mk V stuff here, draw your own conclusions
http://www.spitfireperformance.com/spitv.html