If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#18
|
|||
|
|||
Pazmany PL4
On Feb 26, 2:46*pm, (Drew Dalgleish)
wrote: On Tue, 26 Feb 2008 03:00:47 -0800 (PST), JohnO wrote: On Feb 26, 8:23=A0am, cavelamb himself wrote: Beryl wrote: wrote: On Feb 25, 10:58 pm, flybynightkarmarepair wrote: I've since heard from Veeduber (who knew Pazmany, and flew out of the same airport as the prototype) that you could smell the first ship before you could see it, as it burned, errr flew off the first 40 hours with the belts constantly slipping. ------------------------------------------------------------------ Well... mebbe it wasn't quite that bad... :-) =A0But with multiple vee belts it's impossible to keep ALL of them at the same tension. =A0The loosest of them would slip and there was a definite pong of hot rubber after every flight. Eh? I can't visualize it. Either all, or none, slip. Nope. =A0That's not how it works, Beryl. Oh, maybe if all the belts really were teh exact same size. Or if the pulleys were really exactly parallel. In the real world neither of thoese little details ever work out - quite that exactly. The biggest one slips. How can you tell which is the biggest one? Easy. It's the one that slips! As tehy say, YMMV... Richard- Hide quoted text - - Show quoted text - Caveman, you cannot have one belt slipping and not the others. Think about it - the pulleys on each shaft are all the same size and rotating at the same speed. You can only have slip if one pulley is rotating at a different speed to the other. If one slips they *must* all slip. The longest one slips on both pulleys.- Hide quoted text - - Show quoted text - Are these belts zero stretch? If they are then I'd agree with you. The only zero stretch belts I am familiar with are kevlar reinforced toothed belts running on cogs. As long as the belts in the original question are stretched so that the longest one is now the same length as the shortest one there can be no slip. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pazmany PL4 | (Keith Sowter) | Piloting | 3 | February 25th 08 04:19 AM |
FREE - Homebuilt project - Pazmany PL1 | Eugene Wendland | Home Built | 1 | June 22nd 07 04:06 PM |
Pazmany pL2 plans | frank connaly | Home Built | 10 | November 16th 06 11:36 AM |
Pazmany PL2 strut leak | moni nut | Home Built | 1 | April 27th 04 02:24 AM |
Any Pazmany PL-1/PL-2 owners out there... | Gene Z. Ragan | Home Built | 3 | March 6th 04 04:39 AM |