27% 170B build
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
Re: 27% 170B build
Aryana...don't forget.... the gross wt. cannot exceed 2200 lbs.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
- Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Actually...it can't exceed 550 pounds by scale.gahorn wrote:Aryana...don't forget.... the gross wt. cannot exceed 2200 lbs.
Technically, it can't exceed 55 pounds (according to AMA regulations, larger aircraft must be inspected and issued a waiver), but I don't think this airplane will be much over 22 pounds.
Re: 27% 170B build
If necessary you can always get an STC to increase the gross weight Those mininiture characters may be too big or heavy for your project. I didn't know such was available. Seems there are no limits to what can be purchased these days. Looking forward to continued progress photos, etc.
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
- cessna170bdriver
- Posts: 4063
- Joined: Mon Apr 22, 2002 5:13 pm
Re: 27% 170B build
Actually, a perfect scale 170 at gross weight would be 43.3lb. (cube of 27%)Ryan Smith wrote:Actually...it can't exceed 550 pounds by scale. ...gahorn wrote:Aryana...don't forget.... the gross wt. cannot exceed 2200 lbs.
Miles
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
- Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Dammit Miles! I should have known better than to not do a cubic scale.cessna170bdriver wrote:Actually, a perfect scale 170 at gross weight would be 43.3lb. (cube of 27%)Ryan Smith wrote:Actually...it can't exceed 550 pounds by scale. ...gahorn wrote:Aryana...don't forget.... the gross wt. cannot exceed 2200 lbs.
Re: 27% 170B build
No tiny brass tubing to braze into seat frames?
That cub is something else! I never really enjoyed building out of balsa but I could get into making that fuselage!
But, at that point why not just weld up a Sonerai fuselage? It' s probably not that much bigger.
That cub is something else! I never really enjoyed building out of balsa but I could get into making that fuselage!
But, at that point why not just weld up a Sonerai fuselage? It' s probably not that much bigger.
Re: 27% 170B build
Aryana, are you planning to install one of those "free" Cessna seat stops on your pilot seat We have to keep coming up with things for you to do
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
- cessna170bdriver
- Posts: 4063
- Joined: Mon Apr 22, 2002 5:13 pm
Re: 27% 170B build
27% length times 27% width times 27% height = 1.97% volume = 1.97% weightAryana wrote:Explain this cubic scale theory to me! I've always known that you don't just scale it down proportionately and 43 lbs makes a lot more sense to me. The same thing happens with wing area, right? 1/4 scale wing area is way less than just 25% of the full scale number. ...
For wing area, 27% span times 27% chord = 7.29% area. This is part of "economy of scale"; wing loading is only 27% of full scale.
Miles
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
Re: 27% 170B build
So.... will Barbi and Ken fit inside...???
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Re: 27% 170B build
I think we better find Arayna a follow up project so when this one is complete he will have something to do. Otherwise, with all that spare time, his wife may run him out of the house or worse still find a bunch of honey do's
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
Re: 27% 170B build
With those rare-earth magnets, aren't you concerned about how to swing the whiskey compass?
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Re: 27% 170B build
I can't remember, are you going to have seat & shoulder belts? You may have done so, but it would have been cool to have done a video on all these steps you have taken. You might market same to the kit mfg or others. Could do so even with the photos. I am sure there are lots of folks outside of our assn that would be interested in seeing what you have accomplished.
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
Re: 27% 170B build
Aryana, your links were interesting. A whole industry out there.
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
Re: 27% 170B build
Yes. A "big" industry indeed. I'm considering working a deal with the city to lease land and build a hangar so I can offer structural repair services for these aircraft. I'm trying to convince them that everything should be 27% of the regular cost per sq ft. I think that is as likely to happen as me talking the guys in to working at 27% regular wages.170C wrote:Aryana, your links were interesting. A whole industry out there.
Del Lehmann
Mena, Arkansas
Mena, Arkansas