MOSQUITO / Navigator and celling

[Pierraldo]

Hi, I noted two improvements that would be relevant on this device:

- If the navigator have the same function as that of the machine gunners for the detection of enemy aircraft, I think it would more realistic. This feature will give him a utility to exist

- After a performance test at very high altitude, I noticed that the Mossie did not reach 30k ft, even with empty wing tanks and no armament. I believe in real life it easily climbed 31-32k ft.

Thx

[Asgar]

so... is that purely your believe or do you have any data on that? because i believe the Me 410 can fly 1000km/h with a range of 1000km while carrying 1000kg of bombs

[tattywelshie]

27 minutes ago, Pierrald0 said:

Hi, I noted two improvements that would be relevant on this device:

- If the navigator have the same function as that of the machine gunners for the detection of enemy aircraft, I think it would more realistic. This feature will give him a utility to exist

- After a performance test at very high altitude, I noticed that the Mossie did not reach 30k ft, even with empty wing tanks and no armament. I believe in real life it easily climbed 31-32k ft.

Thx

You are right re service ceiling, the Mk VI had a service ceiling of 33,000ft - source here

14 minutes ago, Asgar said:

so... is that purely your believe or do you have any data on that? because i believe the Me 410 can fly 1000km/h with a range of 1000km while carrying 1000kg of bombs

He speaks the truth, source here (from the DeHavilland museum)

[BlitzPig_EL]

What map did you do the test on?  That will make a difference.  Kuban Spring is the closest in the sim to "Standard Day" conditions.

Also it's good to remember that the altitude shown in the HUD dashboard is altitude above ground level, NOT altitude above sea level, which is how the real specification was set.

[ShamrockOneFive]

56 minutes ago, Pierrald0 said:

- After a performance test at very high altitude, I noticed that the Mossie did not reach 30k ft, even with empty wing tanks and no armament. I believe in real life it easily climbed 31-32k ft.

 

Which performance chart are you using for this belief?

 

Going by this one (Aircraft and Armament Experimental Establishment, Boscombe Down, 19 September 1943, Mosquito FB. Mk. VI. HJ.679(2 Merlin 25's) http://www.wwiiaircraftperformance.org/mosquito/mosquito.html) it was established that the estimated ceiling was 29,800 feet.

 

Holding near stall, just above the buffet, and I was able to do 30,500ish on Kuban Spring with 50% fuel and no armament.

 

 

Seems about right.

 

 

 

 

[busdriver]

10 hours ago, tattywelshie said:

You are right re service ceiling, the Mk VI had a service ceiling of 33,000ft - source here

He speaks the truth, source here (from the DeHavilland museum)

 

You know...as good as those folks are, web sites are not immune to errors.

 

Service ceiling is where the airplane can barely maintain a climb of ~100 fpm (on a "Standard Day') it does NOT mean a regime where you can yank and bank. The Pilots Notes for the FB.VI give no hint of climb performance much above 25,000'

 

 

The AFDU evaluation in 1943 of a Merlin 23 equipped FB Mk VI says this...

 

 

The Mosquito variants that routinely got up into the low 30 thousand foot altitude blocks were equipped with two-stage Merlins, think Mosquito B and PR Mk.XVIs or NF Mk.XXXs. The FB Mk.VI with Merlin 21s, 23s or 25s did not.

 

My suggestion to folks that want to poke holes at the extremes of the FM is to take a beat and look at the operational record and remind themselves exactly what "service ceiling" means. 

 

Edited July 5, 2022 by busdriver
typos

[Blitzen]

5 hours ago, Asgar said:

so... is that purely your believe or do you have any data on that? because i believe the Me 410 can fly 1000km/h with a range of 1000km while carrying 1000kg of bombs

Really-that's too kool for school!?

[Requiem]

And @busdriverthe Mosquito whisperer with the goods again!

[Avimimus]

20 hours ago, busdriver said:

My suggestion to folks that want to poke holes at the extremes of the FM is to take a beat and look at the operational record and remind themselves exactly what "service ceiling" means. 

 

...and then try anyway ? Because it is a sim and you can't die.