A aviation & planes forum. AviationBanter

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.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Home Built
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

VW Redrive Mounted on the Case's Generator Pad?



 
 
Thread Tools Display Modes
  #11  
Old November 26th 05, 08:15 AM posted to rec.aviation.homebuilt
external usenet poster
 
Posts: n/a
Default VW Redrive Mounted on the Case's Generator Pad?

On Fri, 25 Nov 2005 23:16:20 -0500, "Morgans" wrote:

"Ron Wanttaja" wrote

In either case, he swapped it for a VW with the Valley Engineering PSRU
and is
now turning a 96 inch diameter prop with 60 inches of pitch. He claims it
provides 70% more thrust than the old engine. Hmmm, lengthen the gear

legs on
the Fly Baby.... :-)


Wow! It is hard for me to get my brain wrapped around the fact that a VW
could be stronger than an A-75, even with a redrive!


OX-5 engine: 90 HP
O-200 engine: 100 HP

Pull the OX-5 out of a Jenny, install an O-200, and try flying.

Back in the '60s, Boeing decided to build a replica of their first aircraft, the
B&W (Boeing and Westervelt) for the 50th anniversary of the company. The
original was a great big biplane and had a 125hp Hall-Scott A-5 engine with a
long, wide-chord prop.

http://www.centennialofflight.gov/es...y/Aero17G2.htm

The replica was ALSO a great big biplane. They used a geared GO-435 engine with
twice the horsepower and a leetle-bitty propeller.

http://1000aircraftphotos.com/Biplanes/BoeingB-W.htm

I've heard that the replica, even with twice the horsepower, can barely get out
of its own way. Big draggy airplanes want big, slow-turning props, and
apparently half the HP is OK if it's being pushed into a big prop.


Ron Wanttaja
  #12  
Old November 28th 05, 05:15 PM posted to rec.aviation.homebuilt
external usenet poster
 
Posts: n/a
Default VW Redrive Mounted on the Case's Generator Pad?

On Sat, 26 Nov 2005 00:15:29 -0800, Ron Wanttaja
wrote:

I've heard that the replica, even with twice the horsepower, can barely get out
of its own way. Big draggy airplanes want big, slow-turning props, and
apparently half the HP is OK if it's being pushed into a big prop.


That's the basic formula all WWI era aircraft used. All the pics of
them show these monster props with very little ground clearance.

Since they didn't fly very fast, it didn't matter that the props were
slow spinners.

Corky Scott
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fin Mounted TE Prob vs fuselage mounted TE prob [email protected] Soaring 8 June 4th 05 10:39 PM
WTB Tall Redrive Rotax 503 Jean-Paul Roy Aviation Marketplace 1 February 29th 04 10:44 AM
WTB Tall Redrive 503 Rotax Jean-Paul Roy Piloting 1 February 29th 04 10:41 AM
WTB Redrive 503 Rotax Jean-Paul Roy Restoration 1 February 29th 04 10:38 AM
WTB Tall Redrive 503 Rotax Jean-Paul Roy Home Built 0 February 17th 04 03:02 PM


All times are GMT +1. The time now is 07:22 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AviationBanter.
The comments are property of their posters.