2020 Wright Stuff Parameters

bjt4888
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Re: 2020 Wright Stuff Parameters

Postby bjt4888 » June 8th, 2019, 6:27 am

Builder,

Try this one:

https://www.hippocketaeronautics.com/hp ... ic=16691.0

There are a number of good basic designs, but as there is a Hip Pocket Aero build thread on this design, would help with questions.

Also try Bill Gowen’s (Olbill on Hip Pocket) carbon rod hub flaring propeller.

Brian T

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Re: 2020 Wright Stuff Parameters

Postby bjt4888 » June 8th, 2019, 7:08 am

Builder,

Also, see the video in this thread. Indoor junior F1D team member building a LPP in a little more than an hour.

https://www.hippocketaeronautics.com/hp ... ic=14791.0

You will see that much of the Cezar Banks LPP thread is too basic for an experienced WS flier, but a number of the pros contribute ideas that are worth reading.

You can cover with OS film, the best fliers do this in order to reserve more of the weight budget for the motor stick and wing and stab spars. But, you can also do fine covering with super Ultrafilm (cheaper). The video show covering with condenser paper. I would not recommend this as it contracts and expands with humidity changes resulting in possible structure warping.

Also, it’s not that hard to build a simple prop blade mounting jig from scrap balsa instead of using the paper jig shown in the video. One more small thing; the video shows the prop blades being formed for only one hour. You can form on a 4” diameter cylinder or on a helical form (Mike Kirda sells these or you can build) and bake in an oven at about 180-200 degrees for 20 minutes or leave overnight to air dry. I wrap the blades onto a cylinder style form tightly with thin gauze bandage material (not tape or rubber strip as shown in the thread and video).

Brian T

coachchuckaahs
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Re: 2020 Wright Stuff Parameters

Postby coachchuckaahs » June 8th, 2019, 7:48 am

I highly recommend Bill's carbon penny. Builds similar to ffm model, eliminates balsa selection for spars. Not hard to build at all.

For props, we used microwave on level 4 for 3 minutes.

Coach Chuck
Coach, Albuquerque Area Home Schoolers Flying Events
Nationals Results:
2016 C WS 8th place
2018 B WS 2nd place
2018 C Heli Champion
2019 B ELG 3rd place
2019 C WS Champion
AMA Results: 2 AAHS members qualify for US Jr Team in F1D

bjt4888
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Re: 2020 Wright Stuff Parameters

Postby bjt4888 » June 8th, 2019, 5:43 pm

I agree with Coach Chuck, Bill’s carbon penny is very good and not that much more effort to build than the Cezar Banks design.

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klastyioer
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Re: 2020 Wright Stuff Parameters

Postby klastyioer » June 9th, 2019, 8:53 am

thank you all so much for the info and suggestions
i think im going to start with the lpp and work my way to the ministick
best of luck to anyone whos trying lpp this summer
we should totally make a lpp subforum here for summer "studying" (more like building)
or at least hop over on the hpa forums
it's not about the medals; go out there and have fun. make progress, learn a few things, have one heck of a time, because that's all that matters.

Builder Cult >:)

'17 - Towers, WS, rocks
'18 - Towers, WS, Mystery Arch, road
'19 - WS
'20 - WS, Boomilever, PPP

bjt4888
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Re: 2020 Wright Stuff Parameters

Postby bjt4888 » June 9th, 2019, 10:42 am

K,

You will get good feedback by starting a build and fly thread on HPA. Be sure to read all of the existing HPA LPP threads first (probably you’ve already done this).

Brian T

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klastyioer
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Re: 2020 Wright Stuff Parameters

Postby klastyioer » June 9th, 2019, 11:43 am

K,

You will get good feedback by starting a build and fly thread on HPA. Be sure to read all of the existing HPA LPP threads first (probably you’ve already done this).

Brian T
lol yeah youre right ive read a majority of them so far
im going to read the rest this summer
it's not about the medals; go out there and have fun. make progress, learn a few things, have one heck of a time, because that's all that matters.

Builder Cult >:)

'17 - Towers, WS, rocks
'18 - Towers, WS, Mystery Arch, road
'19 - WS
'20 - WS, Boomilever, PPP

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klastyioer
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Re: 2020 Wright Stuff Parameters

Postby klastyioer » June 12th, 2019, 5:44 am

anyone have any good lpp plans that do not have cf?
i dont want to buy cf and waste my money on it : /
id rather use what we have right now
it's not about the medals; go out there and have fun. make progress, learn a few things, have one heck of a time, because that's all that matters.

Builder Cult >:)

'17 - Towers, WS, rocks
'18 - Towers, WS, Mystery Arch, road
'19 - WS
'20 - WS, Boomilever, PPP

jander14indoor
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Re: 2020 Wright Stuff Parameters

Postby jander14indoor » June 12th, 2019, 7:44 am

As with Wright Stuff. Most any plan you find on line will work for a Limited Penny Plane. And most are balsa based.
The key for a good LPP (of any design) is CAREFUL balsa selection for max stiffness while hitting target weight. Particularly spars. Which is why some flyers have gone carbon. But you can do it with balsa.
The motor stick is short and thick enough that stiff enough isn't hard there.
Some designs:
Indoor News and Views is your friend.
Page 58 to 63 of this PDF has a couple of successful designs (and many other class designs to explore):
https://indoornewsandviews.files.wordpr ... esigns.pdf
Not sure, been too many years, but this may have been the first one I built:
https://www.scribd.com/document/3630318 ... ohn-Barker
INAV again, page 4, the classic Cezar Banks LPP:
https://indoornewsandviews.files.wordpr ... v-137a.pdf

Jeff Anderson
Livonia, MI

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klastyioer
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Re: 2020 Wright Stuff Parameters

Postby klastyioer » June 12th, 2019, 4:50 pm

As with Wright Stuff. Most any plan you find on line will work for a Limited Penny Plane. And most are balsa based.
The key for a good LPP (of any design) is CAREFUL balsa selection for max stiffness while hitting target weight. Particularly spars. Which is why some flyers have gone carbon. But you can do it with balsa.
The motor stick is short and thick enough that stiff enough isn't hard there.
Some designs:
Indoor News and Views is your friend.
Page 58 to 63 of this PDF has a couple of successful designs (and many other class designs to explore):
https://indoornewsandviews.files.wordpr ... esigns.pdf
Not sure, been too many years, but this may have been the first one I built:
https://www.scribd.com/document/3630318 ... ohn-Barker
INAV again, page 4, the classic Cezar Banks LPP:
https://indoornewsandviews.files.wordpr ... v-137a.pdf

Jeff Anderson
Livonia, MI
thank you so much, ill take a look at them
it's not about the medals; go out there and have fun. make progress, learn a few things, have one heck of a time, because that's all that matters.

Builder Cult >:)

'17 - Towers, WS, rocks
'18 - Towers, WS, Mystery Arch, road
'19 - WS
'20 - WS, Boomilever, PPP


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