Wikiposts
Search
The Pacific: General Aviation & Questions The place for students, instructors and charter guys in Oz, NZ and the rest of Oceania.

Take Off Flaps - 210

Thread Tools
 
Search this Thread
 
Old 4th Jun 2007, 08:23
  #1 (permalink)  
Thread Starter
 
Join Date: May 2003
Location: Yorkshire
Posts: 664
Likes: 0
Received 0 Likes on 0 Posts
Take Off Flaps - 210

Anyone who feels prompted to answer this post with "read your POH" ... please don't bother !

This is a question for anyone who has experience of flying the bigger Cessna singles (206/210), particularly out of short or rough strips.

The POH for a 210 suggests that 20 degrees of flap should only be used for "soft" surfaces, and that for rough or short field operations, 10 degrees should be used.

So, has anyone used 20 degrees ? If so, under what sort of conditions/weights/speeds etc ?

Many thanks,

FF
FullyFlapped is offline  
Old 4th Jun 2007, 08:39
  #2 (permalink)  
 
Join Date: Dec 2006
Location: Australia
Age: 44
Posts: 61
Likes: 0
Received 0 Likes on 0 Posts
Hi fullyflapped, never flown a 210 but i always use 20 degrees flap in a 206, found them to become airborne much cleaner, not draging your arse so to speak, lower nose attitude also helps avoid obstacles (you can only fly around what you can see!) has worked for me over the years! Sure others have a different view.

20 degrees also works wonders for the PA32 family as well.
trolleydriver is offline  
Old 4th Jun 2007, 09:41
  #3 (permalink)  
 
Join Date: Apr 2007
Location: Cairns
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
Ive never had any trouble with flaps 10 in the 2 1 0 on soft strips. If you fly it as per the POH it will perform.

Ive never used 20 degree's for take off from a standing start... however a idea which has proved very helpful during some flights was, power on down the strip , flaps up , passing about 50 or 60 kts put down flaps 10 if you still dont spring into the air maybe add 15 and you'll def's be airbourne.

Id say if your not sure what 20 will do - try it on a empty leg? or just stick to the 10. easy.


you wouldnt be worried about going to YKLI would you?
myshoutcaptain is offline  
Old 4th Jun 2007, 10:25
  #4 (permalink)  
 
Join Date: Mar 2004
Location: new zealand
Posts: 56
Likes: 0
Received 0 Likes on 0 Posts
20 degrees

I spent about 500 hours in a 210 up at 3000 ft and temps pushing 45 in the summer, usually 4 pax plus 15 kg each out of rough 600m. (Never want to do it again)

All I can say is that if I didn’t use 20 degrees I don’t think I would be here today, I’m convinced it gets off the ground a lot quicker. Although an old Chief Pilot taught me a trick, if its a non a stol kit 210 if you match the flaps to full aileron deflection its about 17 degrees he said something like the best lift drag ratio, not going to debate whether it is or not. I just know it works.

Ive never used 20 degree's for take off from a standing start... however a idea which has proved very helpful during some flights was, power on down the strip , flaps up , passing about 50 or 60 kts put down flaps 10 if you still dont spring into the air maybe add 15 and you'll def's be airbourne
Very good technique for getting the aircraft off the ground if you need to in a hurry. Remember that its not fail safe though, what happens if the flaps fail just before you want "pop” that extra 5-10degrees and you are relying on it to get out of trouble, basically you are up sh creek without a paddle. But on the odd occasion it will defiantly get you out of trouble.

One thing I found that if I used 10 degrees the takeoff was a lot smoother. Remember when you bleed off the flap from 20 to 10 you have a fairly violent sink in some cases so get your speed up first and "bleed" that flap slowly not in one big chunk.

One other thing I think is useful is that you need to hold the control column a little bit firmer forward just after take off because she has a tendency to pitch nose up.

Happy flying, beautiful machine!
pyote is offline  
Old 4th Jun 2007, 12:19
  #5 (permalink)  
Thread Starter
 
Join Date: May 2003
Location: Yorkshire
Posts: 664
Likes: 0
Received 0 Likes on 0 Posts
Guys, thanks for the replies.

Pyote, was the 210 you were flying equipped with a STOL kit ? And do you mean 4 PAX plus you ?

Cheers,

FF
FullyFlapped is offline  
Old 4th Jun 2007, 12:22
  #6 (permalink)  
 
Join Date: Mar 2004
Location: new zealand
Posts: 56
Likes: 0
Received 0 Likes on 0 Posts
FullyFlapped

the 210 that I flew didnt have a STOL kit and yea 4 pax plus me.

It was really tight and shouldnt have really been done, but when one needs hours, you gots to do what you gots to do.

I have been informed that they only take 3 out of there these days, which is a lot safer!
pyote is offline  
Old 4th Jun 2007, 12:52
  #7 (permalink)  

Don Quixote Impersonator
 
Join Date: Jul 1999
Location: Australia
Age: 77
Posts: 3,403
Likes: 0
Received 0 Likes on 0 Posts
Do not under any circumstances compare performance/handling between a C210 and C206 specially the post 76?? 206 which have reflex leading edges which the C210 does not have neither is it I think the same airfail section??

There is a very good reason the best climb speed/rate for the C210 is 104KIAS ??cant remember the exact figure, just accelerate and there is no need to hurry with the gear or flap for that matter. I dont have the Cl graph for the C210 but I suspect 10 deg is almost pure lift.

Ive never had any trouble with flaps 10 in the 2 1 0 on soft strips. If you fly it as per the POH it will perform.
gaunty is offline  
Old 4th Jun 2007, 13:23
  #8 (permalink)  
 
Join Date: May 2001
Location: Back again.
Posts: 1,140
Likes: 0
Received 0 Likes on 0 Posts
Follow the POH. Just what you wanted to hear. Biggest impact on takeoff distance for me was getting the nosewheel off the ground asap and holding it there until the plane wanted to fly. Then stay in the ground effect until the speed built up enough to fly away.
Lodown is offline  
Old 4th Jun 2007, 14:05
  #9 (permalink)  
 
Join Date: Mar 2001
Location: Australia
Posts: 121
Likes: 0
Received 0 Likes on 0 Posts
Have to go with pyote. I flew a 210 at 5000 airport elevation and by matching you full aileron deflection with the flaps (somewhere between 10 and 20) seemed to work a treat and gave me the best take off performance. Makes me wonder if I was pyotes' cheif pilot?!!
Checkerboard is offline  
Old 4th Jun 2007, 15:35
  #10 (permalink)  
 
Join Date: Feb 2005
Location: Left of reality.
Posts: 243
Likes: 0
Received 0 Likes on 0 Posts
Cool C210,s

Can quite comfortably use 10-20 flap. don,t!
Depends on situation.Every situation is different.
Hell i,ve used 25-30 with full fuel @ full pax out of a 350mtr strip.
POH says it can,t be done?
But no big trees< Escape route down a valley and a machine i,d flown for 3 month,s that i trusted.
LEARN.Please.
By Experience through guy,s who have been there and done it and stuck around long along to live.
Not old so @ so,s(although we have a place).
But by your Workmates who should be offering this sort of advice anyway.

Do you have rising ground,?.(What,s the wind doing)??
old ag pilot stuff!!!(Access Each Situation it as it was your first and last job)

How Bloody hot is it (most importantantly)!!!.(Kimberlys,/NT/PNG/Torress)
How well do you. REALLY know your aircraft @ will you bet your life on your nexit decision in totall and utter confidence????.

If not please don,t refer to the book for help.
You should know.!.Please
Stupid decisions kill stupid pilots.!.
Or hopefully your GUT feeling will tell you.?

If this is,nt the most honest post i,ve ever made then help this bloke.
Pilot Operating Handbook???
Cheers M
Where,s this kid been?.
multime is offline  
Old 4th Jun 2007, 16:59
  #11 (permalink)  
Flintstone
Guest
 
Posts: n/a
Sorry multime but I just can't make out what you're saying. It's been a few years since I flew the 210 but even so...........

Originally Posted by multime
Can quite comfortably use 10-20 flap. don,t!
Eh? Are you saying don't use flap at all? Surely not?

Originally Posted by multime
Depends on situation.Every situation is different.
Yep. That's what the 'P' charts are for.

Originally Posted by multime
Hell i,ve used 25-30 with full fuel @ full pax out of a 350mtr strip. POH says it can,t be done?
Yet you did it anyway? Why? Ride 'im cowboy!

I'm not sure that I'm interpreting your comments properly, the strangled punctuation and spelling makes it difficult so some clarification would be appreciated.

Thanks.
 
Old 4th Jun 2007, 22:42
  #12 (permalink)  
Sprucegoose
 
Join Date: Sep 2000
Location: Hughes Point, where life is great! Was also resident on page 13, but now I'm lost in Cyberspace....
Age: 59
Posts: 3,485
Likes: 0
Received 1 Like on 1 Post
POH says it can,t be done?
That is also what the Coroner will be saying...
Hell i,ve used 25-30 with full fuel @ full pax out of a 350mtr strip.
Surely this is a windup, while a 210 is a great machine, no C-210 I have ever seen can be flown with full fuel and full pax and definitely not out of a 350M strip!

Now I ain't the sharpest tool in the shed when it comes to aerodynamics, but even my limited knowledge says that any increase in lift from flap greater than 20 degrees, is negated by the considerable increase in drag in most cases! The two exceptions I know, are the cherokee six (25 degree take off flap) and the twotter (up to 40 degrees). I am fairly sure the C-210 isn't on the list, as it uses a totally different type of aerofoil...

With regard to performance USE THE BOOK!, in most cases you won't even be able to achieve that performance anyway!

PS:
Where's this kid been?.
I would be asking the same question of you Mr multime, not at school it would seem and certainly skipped a few performance classes too...
Howard Hughes is offline  
Old 4th Jun 2007, 23:02
  #13 (permalink)  
 
Join Date: Jul 2003
Location: Wherever I Lay my Hat...
Posts: 295
Likes: 0
Received 0 Likes on 0 Posts
Gaunty & HH: Spot on.

10deg is virtually pure lift in the 206 (not flown a 210) anything above that, the drag increases massively. This is all why there is a POH and P-charts in the aircraft -trained and experienced test pilots risked themselves to develop that data. If you don't follow that data, you are making yourself a test-pilot -and your pax (God forbid you are carrying any!) you crash-test dummies.

I've said it before, but I'll say it again: It is my opinion that your paying passengers deserve and must be able to expect the very best performance possible from both your aircraft and yourself all the time. NONE of that 'best performance' is to be found outside the tested and published performance data and limits.

Think about it.

If you think the job your boss/CP/whoever has asked you to do requires you to 'wring some extra performance out of her', best you refuse to do the job, lighten the load or wait until more favourable conditions exist. That way at least you won't have those of us on here and the Coroner second-guessing your decisions, when you are unlikely to have the luxury of a right of reply.
kiwiblue is offline  
Old 4th Jun 2007, 23:35
  #14 (permalink)  
Flintstone
Guest
 
Posts: n/a
Well I was trying to be a bit more subtle than you guys but I suppose the fishing with dynamite approach sometimes works too
 
Old 5th Jun 2007, 00:02
  #15 (permalink)  
Sprucegoose
 
Join Date: Sep 2000
Location: Hughes Point, where life is great! Was also resident on page 13, but now I'm lost in Cyberspace....
Age: 59
Posts: 3,485
Likes: 0
Received 1 Like on 1 Post
Subtlety doesn't work on some Mr Flinstone, or may I call you Fred?
Howard Hughes is offline  
Old 5th Jun 2007, 00:04
  #16 (permalink)  
 
Join Date: Jun 2006
Location: 3rd rock from the sun
Posts: 2,471
Received 318 Likes on 118 Posts
You know, it's funny how well these things perform when you USE THE POH!

FullyFlapped. How is it, that you can disregard the use of such an important piece of information, that is put into the aircraft for a reason??

morno
morno is offline  
Old 5th Jun 2007, 01:05
  #17 (permalink)  
 
Join Date: Nov 2006
Location: In the Hangar
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
As Gaunty said -

The wing on the 206 and 210 are quite different. 206 wing is hi lift - 210 wing is high speed. (Especially in the strutless 210s - which I think is the G model and later)

The four noticable differences are;
1. Straight trailing edge on 210 vs cranked trailing edge on 206(& most other cessna singles)
2. Thickest part of the wing is nearer the centre of the chord on the 210 (at about 40% chord if I remember correctly), and is nearer the leading edge on the 206.
3. Flush rivets forward of the spar on the 210.
4. Very different flap.

Therefore this must be kept in mind when discussing wing performance in the 2 types, as what applies to one may not apply to the other etc.

There is no way you could come over the fence @40kts in a 210 like you can in a 206 with a Robertson STOL conversion.

I do use flaps 20 for takeoff in my 210 in short field ops. In the takeoff roll, as soon as the ASI needle touches the white arc I give a firm but gentle tug on the column and it literally leaps into the air.

I find that if I hold too much column back too early in the roll, drag increases significantly and lengthens the ground roll.

And yes, be careful retracting the flaps from 20 to 10, do so in small increments or be ready for a sag in your climb.
kingtoad is offline  
Old 5th Jun 2007, 02:05
  #18 (permalink)  
 
Join Date: Dec 2001
Location: YMML
Posts: 2,561
Received 5 Likes on 4 Posts
This thread is an oldy but a very goody-

C206 Tips and Tricks

Note information on C210 wing wrt takeoff performance.
OZBUSDRIVER is offline  
Old 5th Jun 2007, 02:42
  #19 (permalink)  
 
Join Date: Dec 2006
Location: Australia
Age: 44
Posts: 61
Likes: 0
Received 0 Likes on 0 Posts
I don't want to open a can of worms here. The POH was written when the aircraft was first made, flown and tested, by some very experienced pilots, and yes it will get thrown in your face in court (heaven forbid) But the aircraft we are talking about have since done hundreds of thousands of hours, and through trial and error people have learnt how to get the very best out of them in thousands of different situations, something the test pilots never have the luxury of doing in there limited testing programs.

How advanced would the human race have become if people only did what was thought possible! If your not living on the edge your taking up too much space Learn how to get the best from your aircraft you'll be amazed what they can do
trolleydriver is offline  
Old 5th Jun 2007, 03:39
  #20 (permalink)  
 
Join Date: May 2002
Location: Asia
Age: 56
Posts: 2,600
Received 0 Likes on 0 Posts
trolleydriver

That has got to be the dumbest reason I have heard yet for not following the performance data in the POH. It is there for a reason so some idiot doesn’t go and kill him/herself because they thought they were a qualified test pilot. If you, at the tender age of 27 want to dig your own grave, go for it. Just make sure there are no poor unsuspecting passengers on board and that it is your own aircraft. The next thing we will all know is sum bean counter at an insurance company will use this thread as justification to raise insurance premiums. The only thing is it won’t cost them a thing as they can legally refuse to pay out because you weren’t operating the aircraft as the manufacturer specified.

The next time you think you are a test pilot, go have a read of some old BASI crash journals. They are littered with people who thought they were test pilots just like you.
404 Titan is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.