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#1
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homebuilt tailwheel
In the past I've posted info on Bob Barrows' homebuilt tailwheel
assembly, plans for which are available for $25. One of the builders on the Bearhawk email list just posted some detail pictures of the one he had built which I thought that some readers here might find interesting: http://www.eaa1000.av.org/pix/erbpix...eel/twheel.htm ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
#2
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On 3 Nov 2003 04:18:51 GMT, Del Rawlins
wrote: In the past I've posted info on Bob Barrows' homebuilt tailwheel assembly, plans for which are available for $25. One of the builders on the Bearhawk email list just posted some detail pictures of the one he had built which I thought that some readers here might find interesting: http://www.eaa1000.av.org/pix/erbpix...eel/twheel.htm that is an excellent design. I take it from the welds that it is mainly from folded up 4130 sheet. thanks for the post. Stealth Pilot |
#3
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No, it is made from split tube, that is oval'ed somewhat, then welded
together. Stealth Pilot wrote: On 3 Nov 2003 04:18:51 GMT, Del Rawlins wrote: In the past I've posted info on Bob Barrows' homebuilt tailwheel assembly, plans for which are available for $25. One of the builders on the Bearhawk email list just posted some detail pictures of the one he had built which I thought that some readers here might find interesting: http://www.eaa1000.av.org/pix/erbpix...eel/twheel.htm that is an excellent design. I take it from the welds that it is mainly from folded up 4130 sheet. thanks for the post. Stealth Pilot -- Bruce A. Frank, Editor "Ford 3.8/4.2L Engine and V-6 STOL Homebuilt Aircraft Newsletter" | Publishing interesting material| | on all aspects of alternative | | engines and homebuilt aircraft.| *------------------------------**----* \(-o-)/ AIRCRAFT PROJECTS CO. \___/ Manufacturing parts & pieces / \ for homebuilt aircraft, 0 0 TIG welding While trying to find the time to finish mine. |
#4
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On Mon, 03 Nov 2003 19:18:55 GMT, "Bruce A. Frank"
wrote: No, it is made from split tube, that is oval'ed somewhat, then welded together. Stealth Pilot wrote: thanks |
#5
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Nice tailwheel Del it's good to see an alternative to scott and maule
for those with more time than money. Does Bob also offer plans for his main gear shock absorbers? My murphy rebel with die springs seems to want to bounce no matter how smoothly I grease it on. Any pilot reports would be appreciated as well. Drew In the past I've posted info on Bob Barrows' homebuilt tailwheel assembly, plans for which are available for $25. One of the builders on the Bearhawk email list just posted some detail pictures of the one he had built which I thought that some readers here might find interesting: http://www.eaa1000.av.org/pix/erbpix...eel/twheel.htm ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
#6
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On 08 Nov 2003 08:56 AM, Drew Dalgleish posted the following:
Nice tailwheel Del it's good to see an alternative to scott and maule for those with more time than money. Does Bob also offer plans for his main gear shock absorbers? My murphy rebel with die springs seems to want to bounce no matter how smoothly I grease it on. Any pilot reports would be appreciated as well. Drew I know of at least one person who bought the Bearhawk plans just to get the shock strut plans, but Bob might be willing to sell them separately, you'll have to give him a call and ask. When I visited Bob in Virginia in May he mentioned that he had recently sent a set of the shock strut plans to Curtis Pitts for possible use in one of his projects. There are several pilot reports for the Bearhawk linked on my FAQ page, the URL for which is listed in my signature below. ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
#7
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(Drew Dalgleish) wrote in message ...
Nice tailwheel Del it's good to see an alternative to scott and maule for those with more time than money. Can anyone tell me what this thing weighs? It looks like it might be a bit heavy, with the massive steel pivot housing and ball bearing. It also might lack control authority in an incipient groundloop, as the steering pivot is a long way ahead of the tire contact point. Too much castering tendency. Aside from that, It looks very well designed and well worth a homebuilder's time. Scott and Maule tailwheels are expensive, and both use friction clutches on the pivot to try to control shimmy. (Maule's little clutch is not often seen.) The homebuilt wheel looks like it has sufficient rearward tilt on the pivot to prevent shimmy, even when the tail is forced down hard. I'd like to see a tailwheel with an adjustable pivot angle, or a unit that uses a rotary hydraulic damper. Clutches just make maneuvering harder. My tailwheel is an older uncertified steerable unit that I modified to steerable/castering using a release mechanism. It has never shimmied. Why can't the manufacturers of certified wheels achieve this? Dan |
#8
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On 08 Nov 2003 01:42 PM, Dan Thomas posted the following:
Can anyone tell me what this thing weighs? It looks like it might be a bit heavy, with the massive steel pivot housing and ball bearing. It also might lack control authority in an incipient groundloop, as the steering pivot is a long way ahead of the tire contact point. Too much castering tendency. I don't know what the tailwheel weighs, but keeping in mind that the airplane it was designed for (the Barrows Bearhawk) has a maximum gross weight of 2500 pounds on wheels (we get 2700 on floats), and is intended for short/rough field work, a little extra beef is understandable. As for the distance between the steering pivot and the tire contact point, the owner of that particular tailwheel is using an 8" wheel, but had the unit built to take a 10" wheel if he chooses to install one later on. Several builders are installing even bigger wheels for bush work, although a good friend of mine who is a bush pilot prefers the standard narrow Scott wheel on his Super Cub, saying it is less likely to hang up on something. ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
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