Pietenpol-List: Forward CG limit?

An archive of the Matronics Pietenpol Listserve.
Locked
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Forward CG limit?

Post by matronics »

Original Posted By: Steve Eldredge
Well I have to say that I'm a little stoked today. Yesterday I put thewings on and fired up the engine, took lots of pictures and did myweight and balance.All up empty weight: 588.5 lbs!I am just a little aft (.5 inches) of the 20 inch cg limit. I will fixthat with a wing move and hopefully loosing a little weight. (my wife isexcited that there is added incentive for me---)Next task is filling out all the paperwork to get the FAA to make thetrip.More photo's soon.BTW What is the story with the up ended piet on grants page?another BTW Mike C's got some good picts too!Keep building!Steve E.________________________________________________________________________________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Forward CG limit?

Post by matronics »

Original Posted By: Ian Holland
Steve,That's a great weight. Mine is 635. I was to a fly-in at Jersey Shore Palast weekend there was a C-65 Piet there that weighed 740.Craig________________________________________________________________________________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Forward CG limit?

Post by matronics »

Original Posted By:> Steve Eldredge
Steve, can you keep me posted as to how you go about adjusting the wing,and by how much? I sure envy you being that close to completion!
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Forward CG limit?

Post by matronics »

Original Posted By: "Craig R. Lawler"
> > Steve,> > That's a great weight. Mine is 635. I was to a fly-in at Jersey Shore Pa> last weekend there was a C-65 Piet there that weighed 740.> > Craig> I just had a ride in Brian Kenny's Piet on Saturday and it was about580lbs with an A65. And that's with the wooden gear with big motorcyclewheels. He said he saved a lot of weight using round tube for the liftstruts (minimal difference in cruise speed). The airplane had littletrouble lifting the two of us at close to 400lbs. I was really impressedthat such a low powered airplane with not particularly large wings (a Cub has 6 ft more span) can pretty well haul its own weight. Must be something to that cambered airfoil. I'm a believer now.A delight to fly, and it thermals quite nicely (I instruct in gliders).No need to wind up the engine to climb; just find some lift and start circling at 55 mph.John KahnBombardier Inc.________________________________________________________________________________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

Pietenpol-List: Re: Forward CG limit?

Post by matronics »

Original Posted By: Steve Eldredge
Ian,I tipped my wing back 3 1/2" and ended up with 17" back from the leadingedge CG.Craig________________________________________________________________________________
matronics
Posts: 81779
Joined: Sat Mar 18, 2017 8:29 am

> Forward CG limit?

Post by matronics »

Original Posted By: "ernest l. hagness"
> > Well I have to say that I'm a little stoked today. Yesterday I put the> wings on and fired up the engine, took lots of pictures and did my> weight and balance.> > All up empty weight: 588.5 lbs!> > I am just a little aft (.5 inches) of the 20 inch cg limit. I will fix> that with a wing move and hopefully loosing a little weight. (my wife is> excited that there is added incentive for me---)> > Next task is filling out all the paperwork to get the FAA to make the> trip.> > More photo's soon.> > BTW What is the story with the up ended piet on grants page?> > another BTW Mike C's got some good picts too!> > Keep building!> > Steve E.________________________________________________________________________________
Locked