pauldy Posted August 20, 2014 Author Posted August 20, 2014 I'm now doing approaches without speedbrakes and somehow my landings seem more consistent.. I only deploy the airbrake during the landing roll. ^^ One thing I notice is that the Nose no longer feels heavy when flaring and I don't fall off like a brick (hence hard landings but with within -500fpm) after retarding the Throttles.. and yeah.. somehow the video links won't show :-( [sIGPIC][/sIGPIC]
LJQCN101 Posted August 20, 2014 Posted August 20, 2014 The Pitch Trim Compensator (PTC) is not operating (or at least some signals are inhibited) while the landing gear is down. Tested and finally confirmed: When the gear handle is positioned down, normal acceleration signals and the pitch rate canceller circuit are eliminated. NASA did a bunch of research with the eagle's CAS, so they might have a bunch of publications regarding this system. Thanks for reminding NASA. Almost forgot.:D EFM / FCS developer, Deka Ironwork Simulations.
GGTharos Posted August 20, 2014 Posted August 20, 2014 Cool, and good job :) I'm now doing approaches without speedbrakes and somehow my landings seem more consistent.. I only deploy the airbrake during the landing roll. ^^ One thing I notice is that the Nose no longer feels heavy when flaring and I don't fall off like a brick (hence hard landings but with within -500fpm) after retarding the Throttles.. and yeah.. somehow the video links won't show :-( [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda
effte Posted August 20, 2014 Posted August 20, 2014 The airfield you mentioned also has a relatively short runway. When landing, one of the goals is to not wear out the tyres more than necessary as an example, and this is why aerobraking is used. As that statement is likely to be misread and fuel a common misunderstanding, it might just bear clarifying that it is not to be taken to imply that you should aerobrake for short field landings. The other goal of getting the aircraft stopped before the far end of the runway has higher priority than saving brake wear/temperatures, so for minimum run landings, plonk that nose gear down and stand on the brakes. Speedbrakes help as well, even though they're not explicitly mentioned in the manuals I have at hand. Cheers, /Fred ----- Introduction to UTM/MGRS - Trying to get your head around what trim is, how it works and how to use it? - DCS helos vs the real world.
GGTharos Posted August 20, 2014 Posted August 20, 2014 (edited) Minimum run landings are indeed a different technique. The entire aproach is different (ie. shallow glidepath, maintain around 23AoA to touch-down instead of 21, landing within the first 500' or runway, put nose down and hit the brakes etc). And you're also right about misconstruing things, because I certainly don't want to imply minimum-run landings. You don't do them unless you have to. The runway is still a bit short though at the airfield, so you don't get quite as much cushion for your approach and landing (and take-off too) as you would with a longer one. Edited August 20, 2014 by GGTharos [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda
pauldy Posted August 21, 2014 Author Posted August 21, 2014 Since we're talking about landings, doing ILS approaches at Night seems a bit troublesome though. Following the ILS would lead you deeper into the runway. Hence When I cross the threshold, it's like I'm still at 50+ feet.. The "gut feeling" judgement doesn't seem to apply since its dark and the only things that can give you an idea how far you are from the ground are the runway lights.. [sIGPIC][/sIGPIC]
HiJack Posted August 21, 2014 Posted August 21, 2014 Since we're talking about landings, doing ILS approaches at Night seems a bit troublesome though. Following the ILS would lead you deeper into the runway. Hence When I cross the threshold, it's like I'm still at 50+ feet.. The "gut feeling" judgement doesn't seem to apply since its dark and the only things that can give you an idea how far you are from the ground are the runway lights.. You got a track for that?
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