Mark Goldberg
Bearhawk Aircraft
Last Activity: Today, 09:14 AM
Joined: 09-16-2013
Location:
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Looking good Paul. Mark -
Steel tube was the worst. Aluminum sheet also went up more than expected, and shortages in the aluminum are evident right now while I am again buying... -
The wing tip might not have the strength to support a 12 gallon tank and the weight of the fuel. I would certainly run it by Bob before doing this. ... -
I buy materials for the factory every three months. From March until June the cost of 4130 tube went up 40%. Tariffs. And instead of buying from one...Leave a comment:
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The LSA axle is currently too short for Clevelands. While the first sets of plans had axles where Clevelands or Groves would work - current LSA plans...Leave a comment:
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Kit prices for 2019
Prices for materials, especially 4130 tubing, have gone way up this year. Most everything has gotten more expensive but not the 40% increase we have... -
Really building light requires a lot of discipline. No long bolts with many threads showing. Thin washers. The light planes are built saving grams...Leave a comment:
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Three blade metal props on the front of a Bearhawk with a 540 result in a too forward CG which can be compensated for. But for me it is not the best...Leave a comment:
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The correct angle of the flange at the top of the firewall changes around if you move around a little towards the sides. What the workers at the factory...Leave a comment:
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I do not know. They sent me a picture last night of their Patrol towing a two seat glider. Heavy - according to owner. MarkLast edited by Mark Goldberg; 11-20-2018, 09:25 AM. -
Patrol towing a glider
Patrol in Perth Australia towing a glider. They have done 4 or more glider tows. Patrol has Mazda rotary engine and IVO prop. Mark -
I suggest leaving the fabric work until the last. MarkLeave a comment:
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I have heard Bob wonder if the tail surfaces have enough control authority for Fowler flaps. Mark -
Alaska kit shipping opportunity
I got a call today from a man heading to Alaska soon with a trailer. He intends to bring an airplane back in it. So the opportunity is there for someone... -
Just to chime in again that I have personally seen two planes (one a Patrol) have a brake failure because of the PolyFlow lines. The Patrol had a rubbing...Leave a comment:
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A gravity flow system means no pumps. Not an engine driven pump nor a boost pump that is required if you have an engine driven pump. The boost pump...Leave a comment:
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New KitPlanes article
In the issue of KitPlanes that is about to come out there is an article about Collin Campbell who has the distinction of being the only person (except... -
Very nice Greg. Your BH turned out beautiful. Congratulations. MarkLeave a comment:
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I do not think anybody calls you chicken Jonathan. Much to the contrary. Mark
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