Original Posted By: "Jim Ash"
here it is in a nutshell....the GN-1 uses off the shelf Cub, Champ, T-Craft, Baby Ace, etc parts... thelanding gear is Cub. The fuel tank and cowl are Cub, control stick isChamp, aux tanks are T-Craft, aileron horns are Baby Ace, and the list goeson.Back in the day when the late Grega designed the bird those parts wereplentiful and cheap. not the case nowdays.The other main diference is in the wings and cabane assembly. The wings uselarger spars and space them closer together at 31" a la Piper Cub. Youcould in fact use a shortened Piper Cub wing if you want because the cabanesare at the proper dimension.The spars are also taller and 1" thick. essentially the GN-1 wing isstronger than the Piet wing but at a penalty of being heavier (not muchthough)The fuse is narrower so as to be able to use 4x8 sheet of ply and get themost yeild from it..... but alot of GN-1 builders make it as wide or widerthan a Piet (myself included). The GN-1 has ply sheeting that goes fromfirewall to tailpost. This is massive overkill. I chose to do the Pietmethod of ending the sheat aft of the rear seat and then I used oversizegussets past that.GN-1's are known to be heavier than Piets by anywhere from 75-150lb. Iknew this in advance and am doing my best to make a GN-1/ Piet hybrid tokeep my bird light. As of now my entire fuse with center cabanes, combing,control stick, wheels brakes and tail feathers weighs in at about 200lb.About 20lb heavier than I was hoping for but you can imagine how heavy itwould be if I didn;t take weight precautions.I REALLY like the GN-1 design. It's a bit beefier than a Piet but the extrastrength is appealing to me. It'll take about +5 -2 G's (according to myunqualified engineering calculations) What I like most is the fact that Icould use the Cub gear, Cub drag/anti drag wires, and other off the shelfstuff. The rest of the metal parts I had laser cut and bent.Do your homework and I say buy the GN-1 plans AND the Piet plans no matterwhat version you build. Study and read the plans over and over again...it;s amazing how you find new stuff every time you look at them. AlthoughI'm not sure how hard it will be to buy GN-1 plans now that Grega has passedlast November. If you do not have any luck getting in touch with his familylet me know. I could "bootleg" a set for you but I really would like you totry to contact his family first.... somehow.if you get a chance check my aircamper site.... it shows complete logentries from day one of construction with tons of photos. the address isbelow in my signature.I'm about 85% complete with my fuse now and will begin wing constructionthis winter. Hoping to have this sucker in the air October 2005. :-)DJ VeghMesa, AZwww.imagedv.com/aircamper----- Original Message -----
Re: Pietenpol-List: Let's get started - GN-1 details
Re: Pietenpol-List: Let's get started - GN-1 details
Original Posted By: Jim Ash