Author Topic: Me 163 climb rate bug?  (Read 2593 times)

Offline ccvi

  • Gold Member
  • *****
  • Posts: 2074
      • http://www.carl-eike-hofmeister.de/
Re: Me 163 climb rate bug?
« Reply #15 on: October 21, 2017, 02:40:42 PM »
I just flew for 60 seconds with a climb rate of "10" (number on the variometer), and took note of the altitude before and after. The differences was 1000 ft. This agrees with the E6B showing 1000 ft/min.

The varios in every other plane uses 1 unit for 1000 ft/min.

The 163 needs a higher range, but uses 100 ft/min per 1 unit. This causes it to reach the limit at a slow climb of 3000 ft/min.

Could it please be recalibrated to use 1000 ft/min per 1 unit displayed like all other planes, so it can still show something meaningful up to 30000 ft/min?

Offline Zimme83

  • Gold Member
  • *****
  • Posts: 3072
Re: Me 163 climb rate bug?
« Reply #16 on: October 21, 2017, 03:22:38 PM »
100 m/s (~20.000ft/min) seems to have been the maximum on the original gauge in the 163.
''The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge'' - Stephen Hawking

Offline bustr

  • Plutonium Member
  • *******
  • Posts: 12436
Re: Me 163 climb rate bug?
« Reply #17 on: October 21, 2017, 03:46:03 PM »
Here....


bustr - POTW 1st Wing


This is like the old joke that voters are harsher to their beer brewer if he has an outage, than their politicians after raising their taxes. Death and taxes are certain but, fun and sex is only now.

Offline Zimme83

  • Gold Member
  • *****
  • Posts: 3072
Re: Me 163 climb rate bug?
« Reply #18 on: October 21, 2017, 04:18:02 PM »
I looked on this one, but i see now that it also goes to 150.'
''The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge'' - Stephen Hawking

Offline icepac

  • Platinum Member
  • ******
  • Posts: 6974
Re: Me 163 climb rate bug?
« Reply #19 on: October 21, 2017, 05:00:55 PM »
Since nobody specified the altitude of measured climb rate, then nothing said here means squat.

The 163 climbs very differently at sea level than it does at 30k.........or higher.


Offline bustr

  • Plutonium Member
  • *******
  • Posts: 12436
Re: Me 163 climb rate bug?
« Reply #20 on: October 21, 2017, 06:34:18 PM »
I've seen variometer depending on the year from 36-44 at 100 up to 250.
bustr - POTW 1st Wing


This is like the old joke that voters are harsher to their beer brewer if he has an outage, than their politicians after raising their taxes. Death and taxes are certain but, fun and sex is only now.

Offline ccvi

  • Gold Member
  • *****
  • Posts: 2074
      • http://www.carl-eike-hofmeister.de/
Re: Me 163 climb rate bug?
« Reply #21 on: October 22, 2017, 01:51:40 AM »
The 163 climbs very differently at sea level than it does at 30k.........or higher.

Yes. However, the most significant effect on rate of climb is how much fuel is left. Which at higher altitude typically is a lot less than at lower altitudes.

Whether the max-range of the vario is 30 kft/min or 50 kft/min doesn't matter much. Just the current 3 kft/min are a bit too limited.

Offline icepac

  • Platinum Member
  • ******
  • Posts: 6974
Re: Me 163 climb rate bug?
« Reply #22 on: October 22, 2017, 07:57:39 PM »
When there was a bug that "refueled" your plane after a disco, I tested this and found altitude had a huge impact on rate of climb as well as speed.

I used to routinely fly a 163 to the tank bowl in the crater MA map, bag a plane or two, and fly back over the mountains to land.

The key is to burn as little fuel as possible to get to altitude and I never fly the 163 with more than 1/2 throttle and most often the throttle is only advanced until I see the fuel burn move just slightly above the minimum.

At high altitudes, you can fly faster than the plane can handle at this setting but at low altitude it barely stays above stall speed.

Some missions last longer than 30 minutes.