Original Posted By: Gary Gower
I'm planning to build a one piece wing with laminated spars forlightweight and simplicity . I have heard several respectedpeople in the Pietenpol community say that they feel piets look and flybetter with 1 1/2" to 2" of dihedral and yet most of the Piets that Isee pictures of appear to have staight wings. It would be very easy tolaminate dihedral into the spars. My questions are: Is it worth thetrouble? Is there anyone out there who has flown both setups who cangive me a comparison? Do the staight wing piets have any bad habits?I would just like some input--to dihedral or not to dihedral that is the question. Not that I'm up to my wings yet just planning ahead. Thanks Ed G. Palm Harbor Fl. Piet in progress________________________________________________________________________________Date: Tue, 27 Jun 2000 08:25:05 -0700 (PDT)
Pietenpol-List: DIHEDRAL?
>> Re: Pietenpol-List: DIHEDRAL?
Original Posted By: "Michael Conkling"
Subject: Pietenpol-List: Re: Aileron differential>>>That reminds me that I have seen several times about the negative yaw>from the ailerons. Differential ailerons are pretty simple if you>know how much you want. Has anyone ever done anything with this?>>Mike Bell>Columbia, SC>>>"ED GRENTZER" (at)matronics.com on 06/28/2000>03:41:41 PM>>Please respond to pietenpol-list(at)matronics.com>>Sent by: owner-pietenpol-list-server(at)matronics.com>>>To: pietenpol-list(at)matronics.com>cc:>Subject: Re: Pietenpol-List: DIHEDRAL?>>>>>>>From: "Redeye" >>Reply-To: pietenpol-list(at)matronics.com>>To: >>Subject: Re: Pietenpol-List: DIHEDRAL?>>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>>>>>Hi ,>>I own and fly A Piet with dihedral and one with out I cant tell>mutch>>between them->>Both have adverse alereron yaw at low speeds-As far as looks go I>think it>>is a>>personel choice-Both my Piets are GOOD LOOKING.>>Regards Doug Reeve>>Johannesburg>>> Thanks for your reply Doug. You cant ask for better first hand>information than that, someone who owns and flies one of each>regularly.>after some of the really great input I've had I've decided to go with>a>three piece wing and add a little dihedral. Thanks again and good luck>with>your tail stalling problem.>> Ed G.> Palm Harbor, Florida, USA>>>>>>>________________________________________________________________________________
Subject: Pietenpol-List: Re: Aileron differential>>>That reminds me that I have seen several times about the negative yaw>from the ailerons. Differential ailerons are pretty simple if you>know how much you want. Has anyone ever done anything with this?>>Mike Bell>Columbia, SC>>>"ED GRENTZER" (at)matronics.com on 06/28/2000>03:41:41 PM>>Please respond to pietenpol-list(at)matronics.com>>Sent by: owner-pietenpol-list-server(at)matronics.com>>>To: pietenpol-list(at)matronics.com>cc:>Subject: Re: Pietenpol-List: DIHEDRAL?>>>>>>>From: "Redeye" >>Reply-To: pietenpol-list(at)matronics.com>>To: >>Subject: Re: Pietenpol-List: DIHEDRAL?>>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>>>>>Hi ,>>I own and fly A Piet with dihedral and one with out I cant tell>mutch>>between them->>Both have adverse alereron yaw at low speeds-As far as looks go I>think it>>is a>>personel choice-Both my Piets are GOOD LOOKING.>>Regards Doug Reeve>>Johannesburg>>> Thanks for your reply Doug. You cant ask for better first hand>information than that, someone who owns and flies one of each>regularly.>after some of the really great input I've had I've decided to go with>a>three piece wing and add a little dihedral. Thanks again and good luck>with>your tail stalling problem.>> Ed G.> Palm Harbor, Florida, USA>>>>>>>________________________________________________________________________________
>> Re: Pietenpol-List: DIHEDRAL?
Original Posted By: Gary Gower
Subject: Re: Pietenpol-List: DIHEDRAL?>>>>From: "Redeye" >>Reply-To: pietenpol-list(at)matronics.com>>To: >>Subject: Re: Pietenpol-List: DIHEDRAL?>>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>>>>Hi ,>>I own and fly A Piet with dihedral and one with out I cant tell mutch>>between them->>Both have adverse alereron yaw at low speeds-As far as looks go I think it>>is a>>personel choice-Both my Piets are GOOD LOOKING.>>Regards Doug Reeve>>Johannesburg>>> Thanks for your reply Doug. You cant ask for better first hand>information than that, someone who owns and flies one of each regularly.>after some of the really great input I've had I've decided to go with a>three piece wing and add a little dihedral. Thanks again and good luck with>your tail stalling problem.>> Ed G.> Palm Harbor, Florida, USA>>>>>>>________________________________________________________________________________Date: Thu, 29 Jun 2000 09:40:05 -0700 (PDT)
Subject: Re: Pietenpol-List: DIHEDRAL?>>>>From: "Redeye" >>Reply-To: pietenpol-list(at)matronics.com>>To: >>Subject: Re: Pietenpol-List: DIHEDRAL?>>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>>>>Hi ,>>I own and fly A Piet with dihedral and one with out I cant tell mutch>>between them->>Both have adverse alereron yaw at low speeds-As far as looks go I think it>>is a>>personel choice-Both my Piets are GOOD LOOKING.>>Regards Doug Reeve>>Johannesburg>>> Thanks for your reply Doug. You cant ask for better first hand>information than that, someone who owns and flies one of each regularly.>after some of the really great input I've had I've decided to go with a>three piece wing and add a little dihedral. Thanks again and good luck with>your tail stalling problem.>> Ed G.> Palm Harbor, Florida, USA>>>>>>>________________________________________________________________________________Date: Thu, 29 Jun 2000 09:40:05 -0700 (PDT)
> Re: Pietenpol-List: DIHEDRAL?
Original Posted By: Steve Eldredge
>From: "Redeye" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: DIHEDRAL?>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>Hi ,>I own and fly A Piet with dihedral and one with out I cant tell mutch>between them->Both have adverse alereron yaw at low speeds-As far as looks go I think it>is a>personel choice-Both my Piets are GOOD LOOKING.>Regards Doug Reeve>Johannesburg> Thanks for your reply Doug. You cant ask for better first hand information than that, someone who owns and flies one of each regularly.after some of the really great input I've had I've decided to go with a three piece wing and add a little dihedral. Thanks again and good luck with your tail stalling problem. Ed G. Palm Harbor, Florida, USA>>________________________________________________________________________________
>From: "Redeye" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: DIHEDRAL?>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>Hi ,>I own and fly A Piet with dihedral and one with out I cant tell mutch>between them->Both have adverse alereron yaw at low speeds-As far as looks go I think it>is a>personel choice-Both my Piets are GOOD LOOKING.>Regards Doug Reeve>Johannesburg> Thanks for your reply Doug. You cant ask for better first hand information than that, someone who owns and flies one of each regularly.after some of the really great input I've had I've decided to go with a three piece wing and add a little dihedral. Thanks again and good luck with your tail stalling problem. Ed G. Palm Harbor, Florida, USA>>________________________________________________________________________________
> Re: Pietenpol-List: DIHEDRAL?
Original Posted By: "Wayne Sippola"
04:24:28 PMThat reminds me that I have seen several times about the negative yawfrom the ailerons. Differential ailerons are pretty simple if youknow how much you want. Has anyone ever done anything with this?Mike BellColumbia, SC"ED GRENTZER" (at)matronics.com on 06/28/200003:41:41 PMPlease respond to pietenpol-list(at)matronics.comSent by: owner-pietenpol-list-server(at)matronics.comcc:Subject: Re: Pietenpol-List: DIHEDRAL?>From: "Redeye" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: DIHEDRAL?>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>Hi ,>I own and fly A Piet with dihedral and one with out I cant tellmutch>between them->Both have adverse alereron yaw at low speeds-As far as looks go Ithink it>is a>personel choice-Both my Piets are GOOD LOOKING.>Regards Doug Reeve>Johannesburg> Thanks for your reply Doug. You cant ask for better first handinformation than that, someone who owns and flies one of eachregularly.after some of the really great input I've had I've decided to go withathree piece wing and add a little dihedral. Thanks again and good luckwithyour tail stalling problem. Ed G. Palm Harbor, Florida, USA>>________________________________________________________________________________
04:24:28 PMThat reminds me that I have seen several times about the negative yawfrom the ailerons. Differential ailerons are pretty simple if youknow how much you want. Has anyone ever done anything with this?Mike BellColumbia, SC"ED GRENTZER" (at)matronics.com on 06/28/200003:41:41 PMPlease respond to pietenpol-list(at)matronics.comSent by: owner-pietenpol-list-server(at)matronics.comcc:Subject: Re: Pietenpol-List: DIHEDRAL?>From: "Redeye" >Reply-To: pietenpol-list(at)matronics.com>To: >Subject: Re: Pietenpol-List: DIHEDRAL?>Date: Wed, 28 Jun 2000 16:07:26 +0200>>>Hi ,>I own and fly A Piet with dihedral and one with out I cant tellmutch>between them->Both have adverse alereron yaw at low speeds-As far as looks go Ithink it>is a>personel choice-Both my Piets are GOOD LOOKING.>Regards Doug Reeve>Johannesburg> Thanks for your reply Doug. You cant ask for better first handinformation than that, someone who owns and flies one of eachregularly.after some of the really great input I've had I've decided to go withathree piece wing and add a little dihedral. Thanks again and good luckwithyour tail stalling problem. Ed G. Palm Harbor, Florida, USA>>________________________________________________________________________________
Re: Pietenpol-List: DIHEDRAL?
Original Posted By: ED GRENTZER
Hello. The discussion is correct is recognizing the value of dihedral incausing greater stability in a plane. However, Vi Kaplar, who for manyyears led the Pietenpol forums at Oshkosh, said that Bernie put his wingslevel at rest--because natural flexing of the wing system in flight createdabout the right amount of dihedral for flight to be stable. He said thatthe more dihedral you put in, the more lift you lose by spillage off theends of the wings--ie the plane will lose lift if you put in more dihedralthan you need.Mac in Oregon-----Original Message-----
Hello. The discussion is correct is recognizing the value of dihedral incausing greater stability in a plane. However, Vi Kaplar, who for manyyears led the Pietenpol forums at Oshkosh, said that Bernie put his wingslevel at rest--because natural flexing of the wing system in flight createdabout the right amount of dihedral for flight to be stable. He said thatthe more dihedral you put in, the more lift you lose by spillage off theends of the wings--ie the plane will lose lift if you put in more dihedralthan you need.Mac in Oregon-----Original Message-----