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Search: Posts Made By: Fareastdriver
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Forum: Rotorheads
10th Nov 2017, 11:34
Replies: 212
Views: 116,951
Posted By Fareastdriver

A common gearbox design of the Puma family is...

A common gearbox design of the Puma family is that the annular gear is part of the gearbox housing. This breaks, so does the gearbox, leading to the rotor assembly leaving the aircraft as the...
Forum: Rotorheads
2nd Nov 2017, 15:29
Replies: 212
Views: 116,951
Posted By Fareastdriver

The problem is that the gearbox has had it's load...

The problem is that the gearbox has had it's load lifting requirements expanded from 6,300 kg. from the original 330 A to 11,200 kg. in the same dimensional gearbox. You can only stuff new wine into...
Forum: Rotorheads
3rd Oct 2017, 18:55
Replies: 212
Views: 116,951
Posted By Fareastdriver

Maxwell went for a ride in a BV234 just after the...

Maxwell went for a ride in a BV234 just after the Sumburgh crash 'to demonstrate its safety' It didn't stay on the North Sea very long.
Forum: Rotorheads
25th Jul 2017, 14:26
Replies: 212
Views: 116,951
Posted By Fareastdriver

The cause is that the orbital gear cannot contain...

The cause is that the orbital gear cannot contain a disassembling planetary gear. Containment is not new; I've flown helicopters with a containment ring around the turbines to stop them destroying...
Forum: Rotorheads
25th Jul 2017, 13:16
Replies: 212
Views: 116,951
Posted By Fareastdriver

I suppose they could make the top bearing housing...

I suppose they could make the top bearing housing and support lugs out of stainless steel with steel support tubes down the roof. At least the rotor should stay on should the upper planetary...
Forum: Rotorheads
11th Jul 2017, 07:58
Replies: 212
Views: 116,951
Posted By Fareastdriver

I didn't write that very well. That was the...

I didn't write that very well. That was the production figures up to 2014.

From 1971 I can remember eight fatal write-offs. Three of them mechanical, the others mishandling.
Forum: Rotorheads
10th Jul 2017, 18:04
Replies: 212
Views: 116,951
Posted By Fareastdriver

670/890 in 2014. I couldn't tell you how many...

670/890 in 2014. I couldn't tell you how many they have killed through mechanical reasons.
Showing results 1 to 7 of 7


 
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