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.020 size GLH

Old 06-06-2014, 03:38 PM
  #251  
hllywdb
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I did get a quick video this morning. However it is not at max yet. Since I broke my first prop I had to make another one. In my haste it still needs some final finishing and trimming as it is not quite as fast as the first one, at least to my ears. I didn't tach it but I can tell it needs a bit more to fully unload like the first one. But all in all it flys quite nice and is quite quick. I have been pre occupied with the chopper and getting everything running straight and fine tuning the springer front end, so the prop is not my best work. No problem I will get that finalized as there is still more speed to be had. The launch is still so strong that it leads me to belive a 3" pitch is possible with a smaller diameter and still have plenty of thrust left. Hmmm.... but I'm getting ahead of myself as I need to wring all I can get out of the 2.75
https://www.youtube.com/watch?v=U2zbNOJvOh0&feature=youtu.be
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Old 06-06-2014, 05:31 PM
  #252  
Pond Skipper
 
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Are you using a 2.75 x 3 or 4x2.75 prop? I used my audio tach app and your run left to right passes going at an average 26.8k level into the wind up to low 30k mark in a dive with most of the diving getting 28.9k on average. At 27k theoretical speed 76.7mph if with a 3p prop. 82.4 in a dive if at 29k.
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Old 06-06-2014, 06:03 PM
  #253  
combatpigg
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That really sounds awesome..!
I agree that there is more speed lurking with a more aggressive prop...but you definitely have a great all around combo right here to enjoy.
You've got a real rough life with a couple of newly borne hot rods to ring out this summer..!
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Old 06-06-2014, 06:38 PM
  #254  
hllywdb
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Thanks CP, yeah life sucks What I like about the motor is it's soooo consistant. Not the norm for a 020. Bob does know his stuff! I just did the first oil change at 50 miles on the chopper and the stroker I built for that has turned out sweet too. Haven't given it a good run yet as small things like a VIN number, title, and registration need to get taken care of next week.

Pond skipper, it's a 2.75 and I thought it sounded slow. It should do 29k on the level with the prop cleaned up. I'll fix the prop up and tach it before I head back. Either way if I fall somewhere in the 75 to 80mph range its a win. Remeber the original design objective was to break 70. The big win is that its a lot of fun to fly. A little tough to keep oriented. One flight today as I was heading into the cuban turn around I did a full roll instead of a half roll at the top (I still need to reduce the roll rate) so when I hit up elevator to do the half loop back down it was already right side up and just headed for orbit. At that altitude it's tough to reorient at that size. Luckily it was at the end of the bladder and I was able to bring it down fine. I've found that every extra 10mph needs about 10 to 12% reduction in aileron throw or the roll rate gets stupid fast.
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Old 06-06-2014, 09:46 PM
  #255  
MJD
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I am a big fan of triple rate flight mode switches.. I always start too high on the throws.
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