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Money=useful load increase

keithmiller

By keithmiller
in General Mooney Talk

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ArtVandelay Grand Master

ArtVandelay

Posted
Posted
There is also a stall speed certification requirement, IIRC its 60 MPH CAS, clean.  More weight increases the stalling speed as well.

Yes, the stall speed for later Js did go up a few knots.

I wonder what, if any, changes to the stall speed is a result of the winglets?
EricJ Grand Master

EricJ

Posted
Posted
40 minutes ago, RobertGary1 said:

There is no way the 150 would ever climb with 40 degrees of flaps. I never allowed my students to use them because if we did stalls with 40 degrees of flaps and they stuck we'd be in a field.

-Robert

I don't think C150s are certified normal category, iirc they're utility only.  C172s are both utility and normal.

 

 

FoxMike Proficient

FoxMike

Posted
Posted

I would love to dump the donuts on my Bravo.  If you look at the pictures of the M22 that is for sale you see  that Mooney modified the landing gear so the 3680lb. Mustang could stand on oleo struts.  How did they do it?  Mooney modified the wing to move a rib that is installed immediately outboard of the landing gear on all the metal Mooneys.  By moving the rib they moved the gear further outboard so the land gear well has more room.  When the M22 takes off the oleo a extend so you need more room in the well for the gear to retract.  Bill Wheat suggested many times to Mooney Management that the M22 wing be used on new aircraft (it is a certified part) so that oleos could be used in the landing gear.  Mooney may be working on this.  You probably wondering how a 3680 gross weight airplane could keep from breaking from breaking the 60kt stall speed limit.  If someone could talk the M22 owner into lowering the flaps and and taking a picture it would reveal a slick aerodynamic improvement to the flaps which provided enough additional lift to allow 59kt stall.  

  • Like 1
Hank Grand Master

Hank

Posted
Posted
5 hours ago, carusoam said:

Note for @keithmiller...

There is an edit button for that title...  :)

Only visible to the thread creator...

-a-

I sure would like to increase the useful load of my money! I can't help noticing the prices on Andy Griffith . . . . Those prices with a modern salary would sure be a load!! :D

  • Haha 2
Hank Grand Master

Hank

Posted
Posted
1 hour ago, keithmiller said:

Thanks for the tip , how do I accomplish doing that ? 

Go to the Original Post. There should be three little dots in the top right corner. Click them and the option to Edit should appear. Select it and change away!

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  • keithmiller changed the title to Money=useful load increase
Geoff Proficient

Geoff

Posted
Posted
23 hours ago, FoxMike said:

I would love to dump the donuts on my Bravo.  If you look at the pictures of the M22 that is for sale you see  that Mooney modified the landing gear so the 3680lb. Mustang could stand on oleo struts.  How did they do it?  Mooney modified the wing to move a rib that is installed immediately outboard of the landing gear on all the metal Mooneys.  By moving the rib they moved the gear further outboard so the land gear well has more room.  When the M22 takes off the oleo a extend so you need more room in the well for the gear to retract.  Bill Wheat suggested many times to Mooney Management that the M22 wing be used on new aircraft (it is a certified part) so that oleos could be used in the landing gear.  Mooney may be working on this.  You probably wondering how a 3680 gross weight airplane could keep from breaking from breaking the 60kt stall speed limit.  If someone could talk the M22 owner into lowering the flaps and and taking a picture it would reveal a slick aerodynamic improvement to the flaps which provided enough additional lift to allow 59kt stall.  

The M22 had oleo struts which met the drop test at the higher weight and fowler flaps to meet the stall speed requirements at the higher weight.  The design engineering for both M22 parts continues to be held at Mooney and could be what has been referred to.  There may be significant redesign required to apply either or both of these changes to the M20 airframe.

I'm no aerospace engineer so I'm just speculating.

vorlon1 Proficient

vorlon1

Posted
Posted
9 minutes ago, Geoff said:

The M22 had oleo struts which met the drop test at the higher weight and fowler flaps to meet the stall speed requirements at the higher weight.  The design engineering for both M22 parts continues to be held at Mooney and could be what has been referred to.  There may be significant redesign required to apply either or both of these changes to the M20 airframe.

I'm no aerospace engineer so I'm just speculating.

 

M22LG.JPG

Gagarin Community Regular

Gagarin

Posted
Posted

As an example, U.S. FAR Part 23 requires that the stall speed of a single-engine airplane in landing configuration not exceed 61 knots. This stall speed requirement drives the maximum wing loading the airplane can have. The options are: reduce the empty weight of the airframe or increase the wingspan, like on the Piper Malibu.

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Niko182 Grand Master

Niko182

Posted
Posted
2 minutes ago, GeeBee said:

And cheap too!

 

I believe they 1400 dollars and are relatively easy to install by yourself. Just got to find an AP to sign off.

RJBrown Mentor

RJBrown

Posted
Posted (edited)
On 3/24/2021 at 6:32 PM, jetdriven said:

Then you lower the cruise speed.  it isnt that simple.

so much for laminar flow wings

VGs on a Mooney are like a mustache on the Mona Lisa.

Edited by RJBrown
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