Search: Posts Made By: njherr
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08-31-2014, 07:40 PM
Replies: 21
Views: 12,802
Posted By njherr

JetPlaneFlyer, I'm not super savvy on the...

JetPlaneFlyer, I'm not super savvy on the equations governing electrical relationship (in terms of what to expect from a given prop/batt/motor combo) so I've been using www.ecalc.ch and I'm showing...
08-31-2014, 01:50 PM
Replies: 21
Views: 12,802
Posted By njherr

Excellent point! My calculations are based off of...

Excellent point! My calculations are based off of 6.5k-7.5k RPM depending on a given pitch. Still, that is 4x the blade loading... assuming a similar blade weight. Obviously for a whole slew of...
08-31-2014, 11:39 AM
Replies: 21
Views: 12,802
Posted By njherr

Yeah, the commercially available VPP setups are...

Yeah, the commercially available VPP setups are just too small for this project. According to E-flight the VPP's are "3D CAD engineered for use on 3D models weighing up to 12 ounces (340 g) ready to...
08-31-2014, 07:26 AM
Replies: 21
Views: 12,802
Posted By njherr

fhhuber, yeah i searched for the longest time for...

fhhuber, yeah i searched for the longest time for a suitable unit both in terms of blade-count and strength... i suspect that the unit available at HK will not be able to handle the 700 or so W.
...
08-31-2014, 05:21 AM
Replies: 21
Views: 12,802
Posted By njherr

Yeah that's my biggest issue... I don't mind...

Yeah that's my biggest issue... I don't mind dropping a few bucks on an experiment (which I think this qualifies as)... but that is several planes worth of experimentation, especially when you factor...
08-31-2014, 04:41 AM
Replies: 21
Views: 12,802
Posted By njherr

Joe and thepiper92, thanks. I'm focusing on a...

Joe and thepiper92, thanks. I'm focusing on a tail rotor assembly as opposed to a main rotor hub primarily because I only need 1 degree of freedom with regards to blade pitch... basically it can be...
08-31-2014, 03:07 AM
Replies: 21
Views: 12,802
Posted By njherr

Tail rotor question

Good evening everyone. So this isn't actually for a helicopter, but if anyone would know, it would be someone who follows this part of the forum. I'm building a 1/8 FMA IA-58 Pucara and would like to...
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