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Old 07-30-2010 | 11:57 AM
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Default tooo fastt



i bought a blackhouse superair as my second plane.It flyes nice but when i come to land it comes in too fast.
i idle it well before to strip(the strips small) but because its a taildragger i try to put flair on it but it seems to shoot up in the air.
would adding weight to the tail help as it is a bit nose heavy??</p>
Old 07-30-2010 | 12:00 PM
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Default RE: tooo fastt

What would a "bit Heavy" be. In most cases nose heavy plans do land faster that one that is balanced more neutral.
Old 07-30-2010 | 12:02 PM
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Default RE: tooo fastt

well its 2-3 cm forward that the reccomended centre of gravity
Old 07-30-2010 | 12:05 PM
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Default RE: tooo fastt

That seems like a large difference- I'd balance it neutral and see how it flies. How large of a CG range does the manual give you?
Old 07-30-2010 | 12:12 PM
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Default RE: tooo fastt

1cm eather way
Old 07-30-2010 | 12:13 PM
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Default RE: tooo fastt

In that case, definitely re-balance the plane before flying it again.
Old 07-30-2010 | 12:16 PM
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Default RE: tooo fastt

will do thank alot for the help
Old 07-30-2010 | 12:19 PM
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Default RE: tooo fastt

let us know how it lands after you re-balance
Old 07-30-2010 | 12:21 PM
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Default RE: tooo fastt

put an 11x5 (asumbing its a 40 sized plane) prop on it....it will slow dowm much quicker
Old 07-30-2010 | 12:22 PM
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Default RE: tooo fastt

i put in a 52 2 stroke
Old 07-30-2010 | 12:26 PM
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Default RE: tooo fastt

ive got on a 11-7
Old 07-30-2010 | 12:43 PM
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Default RE: tooo fastt

You can go with a 12/5 then. I have several 52 4 strokes and on my super chipmonk that is what I use. It will haul butt.
Old 07-30-2010 | 12:47 PM
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Default RE: tooo fastt

its a 2 stroke so will it be ok
Old 07-30-2010 | 12:54 PM
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Default RE: tooo fastt

a 12/4 would be a 3D prop. Probably go with a 11/5 or 11/6
Old 07-30-2010 | 01:04 PM
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Default RE: tooo fastt

iv got a 11x6 so i will try that
Old 07-30-2010 | 01:11 PM
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Default RE: tooo fastt

When you land try to burn off some of the speed when you are a couple of feet above the runway. Just keep pulling back on the elevator gradually trying to maintain the same height, that will burn off that excess speed. Don't yank back on the elevator that will cause the plane to balloon on you., easy does it. Elevator controls speed and throttle control altitude.
Old 07-30-2010 | 01:47 PM
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Default RE: tooo fastt

will try that
Old 07-30-2010 | 04:08 PM
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Default RE: tooo fastt

Be very aware that if you move your cg back 3 cm, the plane will be MUCH more sensitive to elevator inputs Maybe do it in two or even 3 steps.

Nothing wrong with an 12 x 4 yes it is a 3D prop but it will fly MUCH slower on a landing approach with the same RPM which is what the OP wants.

Might be overrevving a bit in a dive but thats what a throttle is for.
Old 07-30-2010 | 06:31 PM
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Default RE: tooo fastt

Read what " goirish " said again. Elevator "controls speed ". I'll add to that and say that when you are coming in and it's a bit fast, pull back slightly on the elevator and at the same time you may have to add a click of throttle. By pulling back on the elevator, you slowed the plane down, then by adding a click of throttle you kept the plane going forward ( flying ). It doesn't take much and it's refered to as " throttle management ".

Now a stupid question, are you landing INTO the wind or with it ??? Into is right, with it is wrong !!!

One more thing: if you are starting your approach to high and are diving for the runway you will be gaining a lot of speed. Maybe a lower approach or even a longer one if possible. ENJOY !!! RED
Old 07-30-2010 | 08:22 PM
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Default RE: tooo fastt

To add to the "elevator controls speed." Adding some trim for landing will lower your speed without having to hold elevator. Try this at altitude first to find a good trim setting that slows it down without slowing too much and stalling. Trim will determine the speed of the aircraft with the stick at neutral and throttle will determine climbing, level or descending flight at that speed. Set the trim for approach speed then use shallow turns and throttle to control descent. The steeper the turn at approach trim the more throttle needed to avoid a rapid descent. You just have to remember to resist the urge to add elevator in the turns as you are already slow and may stall. Master this and a good approach and your landings will be perfect and easy.
Old 07-31-2010 | 05:34 AM
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Default RE: tooo fastt

defenetly into wind lol
and i fly it 1 metre above the ground for 150 yards to avoid the field fence and then i have 100yards to land but it does not slow down
200 yards is the boundres thanks for the throttel management help i finally understand it
Old 07-31-2010 | 06:01 AM
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Default RE: tooo fastt

This is good advice to get the CG where it belongs before you fly. A forward CG (nose heavy) will require you to fly a faster approach with little control flare when you need it on landings. Move the CG where it belongs and you will have more control. Don't get a rear-ward CG though as that will give you instability and a faster stall onset when you get slow. CG has a huge role in the control ability and flight dynamics of your plane so its important to get it right. Let us know how it works out!
Old 07-31-2010 | 06:44 AM
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Default RE: tooo fastt

broonzie 09, try this out in the air several mistakes up: go to idle throttle the same way you would at landing but with lots of altitude. See at what point the airplane stalls. When it does, add power and fly out. On the next circuit, try to give up elevator just before you stall. If the airplane does not stall or shoots back up when you give up elevator, it means that that your idle is too high.

If this is the case, the idle should be set on the lower with the airplane on ground and engine off. If you are using a computer radio this can be set through "End Point Adjust" (EPA) or "Adjustable Travel Value" (ATV) or whatever your radio calls it. On a analog radio, same is to set with the throttle trim slider. Set it so that you can just see the hole in the baffle at idle. You will also need to check the idle setting by running the engine of the ground for about 30 seconds as your engine will be running in idle for this much time during landing. Note that the RPM will increase when you are in the air so all you need is a fairly relaible idle to prevent the engine from cutting during landing.

If this doesnt slow your landing speed, you can try a larger prop with a lower pitch. As a thumbrule if you are using 11x6, you could go for a 12x5. Try this as a last resort. 5 or 4 pitch props are 3D props i.e. they give a lot of accelration and low top speed. The lower pitch offers a braking effect during landing with the engine at idle. But note that this is a aerobatic trainer and will need forward speed to keep flying. If you get too slow, you may stall the airplane and crash during landing.

Ameyam
Old 08-01-2010 | 10:52 AM
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Default RE: tooo fastt

thanks for all the tips and help.
i landed the plane gentaly without breaking the undercarrage and i added weight to the tail so it now flairs on landing and it slowed right down thanks to the smaller prop.
Now i have to ajust to flying it with the proper CG lol.

Thanks again, now it really isa <u>SUPER</u>air!!!

Old 08-01-2010 | 05:24 PM
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Default RE: tooo fastt

oh and one thing the prop is good but is there another prop that will slow it down at idle but still has good top speed??
 like a 12x6


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