cherokee flap speed??

[uavchaser]

anyone in here use a speed higher than vfe for the first notch of flaps on a cherokee. the poh doesn't specify any difference. I have heard from some that 160mph is ok. i fly a cherokee 235. any advice appreciated, thanks.

 

[a-v-8er]

I don't know for sure about Cherokees, but our Senecas have the same type of flaps in increments of 10, 25 and 40 degrees and its POH specifies 160MPH as the highest for 10 degrees, 140MPH for 25 degrees and 125MPH (Vfe) for full or 40 degrees of flaps.

I'm sorry I couldn't answer your question specifically, but hopefully it might help some if you keep looking...

 

[sanford&son]

i have been wondering the same thing. i have a pa-32 that is hard to slow to vfe w/o either the first dose of flaps, or a big reduction in MP. based on similarities to the pa-34, i have adopted the practice of deploying the first 10 degrees @ <~130mph (vfe +10). nothing has broken off yet! i would like to see some official and or additional information on this. maybe somebody with a later year model's poh/afm has the answer.
-L

 

[xjcaptain]

Generally exceeding any limitation is certainly not a good idea. Intentionally exceeding any limitation in my opinion is careless and reckless operation. I certainly would not recommend it and if it were a checkride situation it most certainly would be a bust. Most of these limitations are in place for reasons that the pilot may not be aware of. They are not given a specific speed without a reason for it. Sounds like it is more a proficiency/technique issue. Rather than a large mp reduction just prior to slowing, maybe a smaller reduction in power a little earlier in the descent profile would be in order. Sounds like this is a planning / lack of planning issue.

 

[Mickey]

I've flown Dakotas as well as quite a few other Pipers and have never needed to exceed flap speed limitations. A well planned descent profile makes life a lot easier. I'm sorry I don't know the answer to your original question but, you might not need the answer. Good luck.

 

[Mickey]

If you really want to have fun planning your descent profile, fly some of the Mooneys. Go from 175+kt cruise to Vfe 120kts. Plus, it really likes to pick up speed in the descent. Take care.

 

[EagleRJ]

Unless your POH specifically states different speeds for different flap settings, Vfe is the maximum speed for flaps to be extended to any degree. That's the way I understand it, anyway.
Just because different models of Pipers have the same flap settings or similar-looking wings doesn't mean that the same flap speeds will be OK. Faster models with higher flap extention speeds may have strengthened structure or thicker pushrods that you don't know about.

 

[sabreliner]

You should NEVER intentionally exceed a limitation of any aircraft. It could be dangerous, and will for bad habits when you get into bigger ac in which it most certainly will be dangerous.

That being said, if you've really dorked up the descent (like we all have once or twice ) then try this technique that we use in the Brasilia when we want to go fast (250kts to about an 8 mile final) When you want to get down in a hurry, stop the descent and let the a/c slow down. Then when you are within the limit speeds, hang out all your drag, then push the nose over and let it fall out of the sky.

Just be careful not to try to push a really late descent into an overshoot! Getting the drag out there will let you continue to descent at a higher rate without having to pull the MP back too far.

 

[jetdriven]

in the chieftain we would pull the power back from 30" over the course of 1 minute to 15", put out all the gear and flaps then put the power immediately back up to 28", and resume the gradual power reduction.
Shock cooling only hurts the motors after a period of time. Momentairly reducing a lot of power wont hurt the engine as long as its for 1 minute or so. Just be sure to put it back in ASAP to keep it warm.

Not recommended for geared engines, but for the piston singles and twins its not an issue.

give it a try.

 

[RockyMnt1]

Speed reductions

Don't know the answer to the original questions.

For those driving light airplanes (WITH NO PAX!!) don't forget about the good ole' slip. Great for slowing down those slippery airplanes without extending anything and losing altitude to boot. Don't do it with pax unless you know them really well or are willing to clean the cabin after the flight.

 

[uavchaser]

it's not really a proficiency item like most of you think. it's more of a convienience. so please don't think it's a lack of piloting skill. the seneca flap speed is what sparked my initial question because the flaps are so similar in design. thanks.

 

[bobbysamd]

Mooneys

If you really want to have fun planning your descent profile, fly some of the Mooneys. Go from 175+kt cruise to Vfe 120kts. Plus, it really likes to pick up speed in the descent. Take care.

That is soooooo true! We flew MO20s (M20J) at FSI. A major change after you've flown primarily Cessna and Piper.

Don't exceed any aircraft limitation. Doing so is a bad idea. Go by your POH and any placards affixed to the aircraft as a good guide for operating your airplane.