Original Posted By: Eric Norris
Hi Guys:I have my gear completed with temporary struts (for GN1) in placeinstead of the bungee/telescoping struts that plans call for. I like the idea of using springs instead of bungees. Do you all haveexperience with either? Good points vs. bad? I suppose I need acertain type spring with a certain spring constant? Where can I findout more and where could I purchase same? Thanks in advance.Bertbwm(at)planttel.net________________________________________________________________________________
Pietenpol-List: Landing Gear Springs
Pietenpol-List: Re: Landing Gear Springs
Original Posted By: Alan Swanson
I flew my Piet for 100 hours with the bungee's and they worked great but I could not get my wings to sit level while on the ground so I made up a set of spring struts as per the news letter with adjusting forks on the ends to solve the problem. The spring struts work just fine and give me a little more of a positive feel when landing. I purchased a set of springs that needed 980lbs of force to compress them .8 of an inch, these work great and cost me $50.00 plus shipping and 1 day work. On page 205 of the 1999 Aircraft Spruce cataloge you can get the whole deal for $89.00 plus shipping.Duane NX6398________________________________________________________________________________
I flew my Piet for 100 hours with the bungee's and they worked great but I could not get my wings to sit level while on the ground so I made up a set of spring struts as per the news letter with adjusting forks on the ends to solve the problem. The spring struts work just fine and give me a little more of a positive feel when landing. I purchased a set of springs that needed 980lbs of force to compress them .8 of an inch, these work great and cost me $50.00 plus shipping and 1 day work. On page 205 of the 1999 Aircraft Spruce cataloge you can get the whole deal for $89.00 plus shipping.Duane NX6398________________________________________________________________________________
Pietenpol-List: Re: Landing Gear Springs
Original Posted By: "David B. Schober"
I am just starting to build my gear. The springs I bought were Lamina brandDie Springs, used in stamping dies. I bought the H56, with a 1 1/2 inch ODand 3/4 ID. At 525 lbs they compress .9 inch (2 springs on the gear todivide up the 1150 lb max weight). 30% deflection is 1.8 inches at 1051 lbsfor each spring (2030 total).Opinions on the suitability of these? They also make an extra heavy dutymodel (XH56).I bought mine from at Precision Punch and Plastics in Minnetonka MN for$17.25 each. Their number is (800) 227-0690.Al Swanson>I flew my Piet for 100 hours with the bungee's and they worked great but I >could not get my wings to sit level while on the ground so I made up a set of>spring struts as per the news letter with adjusting forks on the ends to >solve the problem. The spring struts work just fine and give me a little >more of a positive feel when landing. I purchased a set of springs that >needed 980lbs of force to compress them .8 of an inch, these work great and >cost me $50.00 plus shipping and 1 day work. On page 205 of the 1999 >Aircraft Spruce cataloge you can get the whole deal for $89.00 plus shipping.>>Duane NX6398>>________________________________________________________________________________
I am just starting to build my gear. The springs I bought were Lamina brandDie Springs, used in stamping dies. I bought the H56, with a 1 1/2 inch ODand 3/4 ID. At 525 lbs they compress .9 inch (2 springs on the gear todivide up the 1150 lb max weight). 30% deflection is 1.8 inches at 1051 lbsfor each spring (2030 total).Opinions on the suitability of these? They also make an extra heavy dutymodel (XH56).I bought mine from at Precision Punch and Plastics in Minnetonka MN for$17.25 each. Their number is (800) 227-0690.Al Swanson>I flew my Piet for 100 hours with the bungee's and they worked great but I >could not get my wings to sit level while on the ground so I made up a set of>spring struts as per the news letter with adjusting forks on the ends to >solve the problem. The spring struts work just fine and give me a little >more of a positive feel when landing. I purchased a set of springs that >needed 980lbs of force to compress them .8 of an inch, these work great and >cost me $50.00 plus shipping and 1 day work. On page 205 of the 1999 >Aircraft Spruce cataloge you can get the whole deal for $89.00 plus shipping.>>Duane NX6398>>________________________________________________________________________________
Pietenpol-List: Re: Landing Gear Springs
Original Posted By: Dlwoolsey(at)aol.com
The 525 lb springs are much to light because of the machanical advantage of the arm. I know this from experience. I installed the 525lb springs and they let the gear sag clear to the stops. you need the super-heavy duty with about 1000lbs per .8 inch of compression. These compress 1/4" under empty load.Duane NX6398________________________________________________________________________________
The 525 lb springs are much to light because of the machanical advantage of the arm. I know this from experience. I installed the 525lb springs and they let the gear sag clear to the stops. you need the super-heavy duty with about 1000lbs per .8 inch of compression. These compress 1/4" under empty load.Duane NX6398________________________________________________________________________________
Pietenpol-List: Re: Landing Gear Springs
Original Posted By: DXLViolins(at)aol.com
Duane- Thanks for sharing your experience with the springs. Thats why thisgroup os so great! I'll order the heavier springs.Al Swanson>The 525 lb springs are much to light because of the machanical advantage of >the arm. I know this from experience. I installed the 525lb springs and >they let the gear sag clear to the stops. you need the super-heavy duty with >about 1000lbs per .8 inch of compression. These compress 1/4" under empty >load.>>Duane NX6398>>________________________________________________________________________________
Duane- Thanks for sharing your experience with the springs. Thats why thisgroup os so great! I'll order the heavier springs.Al Swanson>The 525 lb springs are much to light because of the machanical advantage of >the arm. I know this from experience. I installed the 525lb springs and >they let the gear sag clear to the stops. you need the super-heavy duty with >about 1000lbs per .8 inch of compression. These compress 1/4" under empty >load.>>Duane NX6398>>________________________________________________________________________________