Modified Cessna 172 Air file

[BrandonF]

I have been taking off from Juancho Yrausquin Airport and The runway is so short that the Default Cessna 172 just barely clears the trees in time. Can someone modify the Cessna so that it Gets up to takeoff speed faster or something like this. I just need it to takeoff faster. I have a repaint I'm using and I can have it use the new air file.

Anyone?

Thanks in advance,
Brandon

[Brett_Henderson]

You can do anything you want to the air/cfg files.. normally to enhance realism..

[BrandonF]

Thanks. I'll try that and let you know how it works. I figured that the Cessna already flew well. I just wanted a separate air file to use with the repaint I have while taking off at that airport.

[Fozzer]

I do a similar thing as Brett suggested.

My technique for very short field take-offs is as follows...

Start right at the start of the runway, (or even further back if possible!)...

Trim the Aircraft for slight nose-up. (Make sure the Auto-pilot is switched off!)
Hold the brakes fully on.
SLOWLY rev the engine up to maximum revs. (To protect the engine).
Release the brakes.
Accelerate.
Partway down the runway, quickly apply one stage of flaps, followed by slight back pressure to the Yoke/Joystick...
(This will often catapult the aircraft off the runway!).
As soon as the aircraft is safely climbing, quickly retract the Flaps, (to reduce drag), and keep a wary eye on the Airspeed and Altimeter, to ensure a positive rate of climb.

I personally delay deploying the Flaps to reduce the initial drag when accelerating down the runway... ...!

I regularly practice it, and it seems to work very effectively in clearing obstacles at the end of the runway!... ...!

Paul.

[Brett_Henderson]

I personally delay deploying the Flaps to reduce the initial drag when accelerating down the runway... ...!

This is excellent technique ...  if you're cutting it close, getting up to rotation speed sooner helps  8-)

As soon as the aircraft is safely climbing, quickly retract the Flaps, (to reduce drag),

This will get you into trouble for a couple of reasons. That extra drag is also producing extra  lift...  And while it's true tha a "clean" wing at Vx is more efficient than a "dirty" wing at Vx... the dirty wing will will steepen the climb, just like it steepens an approach. When clearing trees, you aren't trying to gain altitude as quickly as possible.. you're trying to gain it over as short a distance as possible.

AND (in a real 172), retracting the flaps while at Vx will cause your vertical-speed to decrease dramatically, while you change AoA for the "new" wing's Vx. You might even LOSE a little altitude.

Keep the flaps deployed, and nail Vx until you're safely clear of the trees... then pitch for Vy.. and  THEN  retract the flaps.

[Fozzer]

.... ....

I love the thought of my Flaps slowing me down when landing... ...

...but I hate the thought of them slowing me down when I am trying to gain enough speed to clear that really big Tree at the end of the runway which is approaching me ever closer, by the second!... ...!

I try to make sure that my Air Speed is increasing at the same time as my Altitude is increasing....keeping a wary eye on both Clocks...and the birds nest on the top of the Tree in front of me!......!

Flaps are fantastic for low speed flying above stall speed, once I am safely up in the air, but I hate the thought that they may impede my rapid ascent up into the clear blue yonder!.... ..... ...!

Paul...G-BPLF...FS 2004....and cleaning the leaves out of my wheel spats... ...!

P.S....I'll give it a try, Brett...I promise!...... ...!

P.P.S...if it doesn't work, I'll pass on my next years Insurance Premiums on to you!..... [smiley=evil.gif]...!

[Brett_Henderson]

P.S....I'll give it a try, Brett...I promise!...... ...!

P.P.S...if it doesn't work, I'll pass on my next years Insurance Premiums on to you!..... ...!

...but I hate the thought of them slowing me down when I am trying to gain enough speed to clear that really big Tree at the end of the runway which is approaching me ever closer, by the second!... ...!

Therein lies the secret..

[Fozzer]

...Buggar!.... ...!

I've got red paint on my tyres now... ...!

Paul.... ... ... ...!

[BrandonF]

Thanks for the tips. They are helping. I am practicing as I type. I just made a hard landing and broke the front nose gear! This was actually one of the best approaches I've ever made. Those stupid trees make you have to make a nose dive to land.

[dave3cu]

Brandon,

....Those stupid trees make you have to make a nose dive to land...

The default SABA airport is not realistic, it should be on a plateau, no verticle obstructions in the approach path.....other that the cliff face if you come in low

[BrandonF]

Thank you very much for the find. I was trying to modify the airport myself in ADE, but this was just the layout of the airport, and not the height. Great, now I don't have to worry about hitting a tree!

Thanks again!

[packercolinl]

If you want a small tweak,change the 'power_scalar=1.0' in the Aircraft .CFG to '1.05'.

Doesn't look like much but I'm happier for it.

Col.

[Brett_Henderson]

If you want a small tweak,change the 'power_scalar=1.0' in the Aircraft .CFG to '1.05'.

Doesn't look like much but I'm happier for it.

Col.

The default C172 performance is pretty darn close to realistic. While you can do anything you like to a cfg file (even make a C172 fly at 300knots)..  ::)  what's the point  ? If you need an airplane that's faster than a C172, there are plenty out there  :P

[packercolinl]

Hi Brett!!

I did a reinstall of FSX for various reasons and the 172 became the aircraft of choice after buying a scenery addon.

So I have been flying this with downloaded weather giving a good range of conditions and it still sucks.

If this thing performed at SL and 29.92 like a real 172 I'd never get in a real one again. If you are struggling to make 300' at full throttle on a good day and the only way you can get over 50kts is to put the nose down--man!!

I have truly tried to use it without touching the .cfg but it will not do what it is supposed to.

Col.

[Brett_Henderson]

Hi Brett!!

I did a reinstall of FSX for various reasons and the 172 became the aircraft of choice after buying a scenery addon.

So I have been flying this with downloaded weather giving a good range of conditions and it still sucks.

If this thing performed at SL and 29.92 like a real 172 I'd never get in a real one again. If you are struggling to make 300' at full throttle on a good day and the only way you can get over 50kts is to put the nose down--man!!

I have truly tried to use it without touching the .cfg but it will not do what it is supposed to.

Col.

Howdy !  :)

Welllllll..  I have somewhere near 1,000 hours in C172s (prob near 2,000 hours in 140-180 hp singles).. Climbing into one after flying a 235hp C182 is "shocking". They're slow.. do not climb well, and on hot days are pretty much 2-seat airplanes (with any kinda fuel load).

I have to say.. the default C172 is close enough to realistic across it's performance envelope, that it needs no tweaking.. really. When I was getting my instrument rating.. I flew the default C172 daily, sometimes right after climbing out of a real one. The performance similarities were eerily accurate.