Mosquito Ace

[Karnak]

Neil,

I am getting an error message when I try to open that PDF file.

I would love to read over that report though.

Thanks.

EDIT:

Got the PDF file from your earlier post.

[Karnak]

Hatfield tests on HJ679, no tanks, ejector exhausts, +18lbs boost, all up weight 19,100lbs:

5,000ft: 371mph
12,400ft: 384mph


Karnak's tests on Aces High Mosquito Mk VI, no tanks, saxaphone ducts, +18lbs boost (gauge read +14lbs at 50ft and 5,000ft and +10lbs at 12,400ft, but I think this is an error in the gauge model, like it is using a Merlin 21 or 23 FTH rather than the Merlin 25s its performance indicates it has), all up weight 19,100lbs:

50ft: 338mph
5,000ft: 362mph
12,400ft: 376mph


If those ratios hold, HJ679 would do 347 or 348mph at 50ft.  Still a bit slower than the claims of the Mossie 6 pilots I have had the luck to recieve replies from.  Each of them, with one exception, said it would do a little over 350mph at sea level. The one exception claimed over 370mph, but I think he was looking at one of the air speed indicators that de Haviland had warned would read about 20mph too fast at high speeds.

[Neil Stirling]

Hi Karnak.

I have some more bits and bobs.

This from AVIA 6/5817

NF XIX ejector exhausts at 3,000ft

348mph +18lbs boost
377mph +25lbs boost.

AIR 11/52

NF XIX +25lbs boost

SL  363mph
1,500ft 364mph
3,000ft 362mph
4,000ft 367mph

AVIA 6/5594

NF XIII Merlin 25 +25lbs boost "Test results"

Low supercharger, 360mph at altitudes up to 5,300 ft.
High supercharger, 377mph.

Neil.

[Scherf]

Yowee - fast.

The significant thing about the NF.XIX (for AH purposes) is that it used the same Merlin 25 as was standard on the FB.VI, and also of course had the latter's flat windscreen.

Am tracking down those bits & pieces for you Neil, will try to PM them to you. I don't know how many words the PMs are limited to - might need to split them across a couple.

Cheers,

Mark